SMC ES100-167-PFUW Clamp on Type Flow Sensor Owner's Manual

The sensor can be easily mounted to piping with only 2 bands and
2 screws. It can also be retrofitted to existing piping at any
position with two simple steps.

Compatible Piping Types

The flow sensor is compatible with screw-in piping (PF3W711) and
clamp-on type piping (PFUW711).

Color Display Features

The color display supports a 2-screen display for checking
instantaneous flow rate, set value, accumulated flow rate, and more
at a glance.

Ultrasonic Reception Strength Display

The ultrasonic reception strength display allows you to confirm
the product mounting status by checking the ultrasonic detection
level.

FAQ

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

A: The compatible fluids include general liquids, beverage, oil,
antifreeze, chemical liquids, water, and high-pressure fluids.

Q: Does the flow sensor require any piping work for
installation?

A: No, the PFUW Series Clamp-on Type Flow Sensor does not
require any piping work. It can be easily mounted with bands and
screws.

“`

View Fullscreen

For liquids
Clamp-on Type Flow Sensor

IP65 IP67

Benefit from the eight
“zeros” with clamp
mounting!

Zero piping work Zero leakage Zero clogging Zero pressure loss Zero fluid contact Zero fluid contact parts material concerns Zero foreign matter entry into piping Rated flow rate range from zero L/min

“Easy mounting and retrofitting” Reduced installation work

PFUW Series

CAT.ES100-167A

For liquids Clamp-on Type Flow Sensor PFUW Series

Benefit from the 8 “zeros” with clamp mounting!

No piping work required
·Zero piping work ·Zero leakage

Can be easily mounted to piping with only 2 bands and 2 screws!
Band

Can be retrofitted to existing piping at any position with two steps

Screw

Wrap the bands around any pipe.

Secure the screws.

No sensor inside piping required Not affected by water hammer
·Zero clogging ·Zero pressure loss
No contact with fluid in piping
·Zero fluid contact ·Zero fluid contact parts material concerns ·Zero foreign matter entry into piping

·Rated flow rate range from zero L/min

Can detect when there is no fluid flowing in piping (0 L/min)

Applicable port size

Model

Nominal A Nominal B 0.5 5

Flow range [L/min] 40

PFUW760 15A

1/2″ 0

PFUW711 20A

3/4″ 0

100
100

For liquids Clamp-on Type Flow Sensor PFUW Series

Types of compatible piping

Flow rate 60 L type 100 L type

Port size Nominal A 15A 20A

Nominal B 1/2″ 3/4″

Applicable fluids

General liquids

Beverage

Oil

Antifreeze

Chemical liquids

Water

High-pressure fluids

Can be mounted in close proximity (Reduced installation space)

Screw-in piping PF3W711

Clamp-on type PFUW711

Tool interference when mounting the screw-in type
312 mm

Space saving
168 mm
(54%)
shorter

144 mm

Example For use in combination with manifolds for water

Supply type PF3WS

PF3WS

Supply

Cooling area Cooling area Cooling area

PFUW Return

Chiller unit

Cooling tower

For liquids Clamp-on Type Flow Sensor PFUW Series

Color display/2-screen display supported

For the confirmation of the instantaneous flow rate, set value, and accumulated flow rate at a glance

Main screen
Instantaneous flow rate
Sub screen
Set value, accumulated flow rate, etc.

Size
1.44 inch

Resolution/Color
128 x 128/RGB

Improved visibility and operability

OUT

90°

OUT

90°

The display screen can be rotated in 90° increments.

90° OUT IN

IN 90° OUT

The color display allows for improved visibility. And the 2-screen display allows you to check the status at a glance.

Instantaneous flow rate value

Main screen
Instantaneous flow rate value
Sub screen
Set value IO-Link status Accumulated flow rate value Peak/bottom
value Line name

Blue background with white characters

Red background with white characters

Black background with Black background with Black background with

green characters

red characters

white characters

Set value

IO-Link status

Accumulated flow rate value

Peak/bottom value

Line name

Ultrasonic reception strength display: Ultrasonic indicator

The product mounting status can be confirmed at a glance via the ultrasonic reception strength.
The ultrasonic detection level varies depending on the piping type, fluid, piping condition, and product mounting status (tightness of the clamping screws).

Icon

Ultrasonic detection level

Description

Note

Level 0

Detection is disabled.

The ultrasonic detection level is low. Check the piping condition and product mounting status, and also check whether the piping is full of fluid and whether there are bubbles or foreign matter in the fluid.

Level 1

Low stability

Check the piping condition and product mounting status. Depending on the piping condition, changing the piping mounting position may improve the ultrasonic detection level.

Level 2

Medium stability

Recommended value Stable measurement is possible.

Level 3

High stability

Recommended value Stable measurement is possible.

Level 4

Excessive The ultrasonic detection level is too high. Flow measurement may become unstable. ultrasonic detection Change the ultrasonic transmission level (F11 Power) to “Low.”

For liquids Clamp-on Type Flow Sensor PFUW Series

Applications
For the cooling of processing machines (casting machines)

For the beverage management of filler machines

For drainage management

For the cooling of welding guns

For the cooling of PET bottle molding machines

For coolant management

Applicable fluids General liquids: Beverage, Oil, Antifreeze, Chemical liquids, Water, High-pressure fluids 4

For liquids Clamp-on Type Flow Sensor PFUW Series

IO-Link Compatible PFUW7– Supports the IO-Link communication protocol

PLC
Fieldbus

Configuration File (IODD File1) · Manufacturer · Product part no. · Set value

1 IODD File

IODD is an abbreviation of IO Device

Description. This file is necessary for setting

the device and connecting it to a master. Save

the IODD file on the PC to be used to set the

device prior to use.

p. 7
IO-Link is an open communication interface technology between the sensor/ actuator and the I/O terminal that is an international standard, IEC 61131-9.

Device settings can be set by the master.
· Threshold value · Operation mode,
etc. · Flow rate
command value

Read the device data.
· Switch ON/OFF signal and analog value · Device information:
Manufacturer, Product part number, Serial number, etc. · Normal or abnormal device status · Cable breakage

IO-Link Master

IO-Link Compatible Device: Digital Flow Switch

For the confirmation of the status via the input process data

Input Process Data

Bit offset 63

Item

Accumulated measurement value, upper (PD)

Bit offset 47

Item

Accumulated measurement value, lower (PD)

Bit offset 31

Item

Flow rate measurement value (PD)

Bit offset Item

15
System error

14 Error

Fixed Ultrasonic output error

Reservation

Flow rate Accumulation Flow rate diagnosis diagnosis unit

Ultrasonic intensity

Instantaneous Instantaneous Accumulated Accumulated

Bit offset 0
1 2 3 4 to 6 7 8 9 12 13 14 15 16 to 31
32 to 47
48 to 63

Item

Note

Accumulated OUT1 output

0: Less than the set value 1: Greater than the set value

Accumulated OUT2 output

0: Less than the set value 1: Greater than the set value

Instantaneous OUT1 output

0: OFF 1: ON

Instantaneous OUT2 output

0: OFF 1: ON

Ultrasonic intensity indicator

0 to 4

Flow rate unit

0: L/min 1: gal/min

Diagnosis (Accumulated flow rate) 0: Within range 1: Out of range

Diagnosis (Instantaneous flow rate) 0: Within range 1: Out of range

Ultrasonic measurement error

0: No error 1: error

Fixed output

0: OFF 1: ON

Error (Other than system error)

0: OFF 1: ON

Error (System error)

0: OFF 1: ON

Instantaneous flow rate measurement value
Accumulated flow rate measurement value (lower)
Accumulated flow rate measurement value (upper)

Signed 16 bit Unsigned 32 bit Unsigned 32 bit

Diagnosis items
· Over current error · Outside of rated flow range/accumulated flow range · Internal product malfunction · Outside of zero-clear range

Communication IO-Link with master communication status
Yes

Status Operate
Normal Start up Preoperate

Screen display

Description
Normal communication
status
At the start of communication

IO-Link mode

Version does not match

The IO-Link version does not match that of the master.

Abnormal

Normal

Communication disconnection

communication was not
received for 1 s or longer.

OFF

SIO mode

General switch output

If the version of the connected IO-Link master is something other than “V1.1,” the display will show an error.

CONTENTS
For liquids Clamp-on Type Flow Sensor PFUW Series
How to Order ····································································································· p. 7 Specifications ···································································································· p. 8 Flow Range ······································································································· p. 9 Flow Rate / Analog Output ··············································································· p. 9 Flow Rate Measurement Method ·································································· p. 10 Piping Characteristics (Reference Data) ······················································· p. 10 Dimensions ······································································································ p. 11 Safety Instructions ··············································································· Back cover
6

For liquids Clamp-on Type Flow Sensor
PFUW Series IP65 IP67

How to Order
PFUW7 60 L1 M

Symbol Rated flow range

0 to 60 L/min

0 to 100 L/min

Rated flow range

Applicable port size

Nominal A Nominal B

15A

1/2″

20A

3/4″

Output specification

Symbol L1 L2
L3

OUT1 IO-Link/NPN/PNP IO-Link/NPN/PNP
IO-Link/NPN/PNP

OUT2 —
NPN/PNP/External input
Analog output (1 to 5 V 0 to 10 V)1

IO-Link/NPN/PNP

Analog output (4 to 20 mA)

1 1 to 5 V or 0 to 10 V can be selected by pressing the button. The default setting is 1 to 5 V.

Calibration certificate5

Symbol Calibration certificate

Nil

—

5 The certificate is in both English and Japanese.

Unit specification

Symbol Nil M

Description Units selection function3
SI unit only4

3 This product is for overseas use only. (The SI unit type is provided for use in Japan in accordance with the New Measurement Act.) The unit can be changed. Instantaneous flow: L/min gal/min Accumulated flow: L gal
4 Fixed unit Instantaneous flow: L/min Accumulated flow: L

Option

Symbol Nil N Q

Description With lead wire with M12 connector (3 m)
Without lead wire with M12 connector With lead wire with M12-M12 connector (3 m)2

2 One side has an M12 (socket), and the other side has an M12 (plug) lead wire with a connector.

Options/Part Nos. When only optional parts are required, order with the part numbers listed below.

Part no.

Option

Note

ZS-37-A

Lead wire with M12 connector

Length: 3 m

ZS-49-A

Lead wire with M12-M12 connector Male/female conversion, Length: 3 m

ZS-57-60LR Clamp assembly set 60

Left/right mounting bracket set (for the 60 L range)

ZS-57-11LR Clamp assembly set 100

Left/right mounting bracket set (for the 100 L range)

ZS-57-A

Rubber sheet

Replacement parts

Rubber sheet

PFUW For liquids Clamp-on Type Flow Sensor

Series

Specifications

For flow switch precautions and specific product precautions, refer to the “Operation Manual” on the SMC website.

Piping Fluid
Flow
Accuracy5 Analog output6 External input8

Model Applicable piping material1

PFUW760

PFUW711

Metal piping, Hard resin piping

Piping A type
diameter B type Applicable fluid2

15A

20A

1/2B

3/4B

General liquids (Water, Oil, Chemical liquids, etc.)

Fluid temperature range

0 to 90°C (No freezing or condensation)

Detection method Ultrasonic method (Propagation time difference method)

Rated flow range

0 to 60 L/min

0 to 100 L/min

(Flow under 0.6 L/min is (Flow under 1.0 L/min is displayed as 0.0 L/min)3 displayed as 0.0 L/min)3

Display/Set Instantaneous flow rate flow rate range Accumulated flow

-3 to 84 L/min

-5 to 140 L/min

0 to 999,999,999 L

Display/Minimum Instantaneous flow rate setting unit Accumulated flow

0.1 L/min 1 L

Zero cut-off range 0 to ±10% F.S. (Select per 1% F.S. for the maximum rated flow rate.)

Accumulated volume per pulse (Pulse width = 50 msec.)
Accumulated value hold function

1 L/pulse Interval of 2 or 5 minutes can be selected.4

Flow rate accuracy

±3.0% F.S.

Analog output accuracy

±3.0% F.S.

Repeatability

±2.0% F.S.

Temperature characteristics Output type

±5.0% F.S. (25°C standard) Voltage output: Select from 1 to 5 V or 0 to 10 V7,
Current output: 4 to 20 mA

Impedance

Voltage output Current output

Output impedance: Approx. 1 k Max. load impedance: 600 at power supply voltage of 24 V

Input type

Input voltage: NPN setting: 0.4 V or less (Reed or Solid state) PNP setting DC (+) -1 V or more

Input mode

Select from accumulated value external reset, peak/ bottom reset, or zero-clear.

Input time

30 ms or more

Output type

Select from NPN or PNP open collector.

Output mode

Select from hysteresis, window comparator, accumulated output, accumulated pulse output, error
output, or switch output OFF modes.

Switch output

Switch operation Max. load current

Select from normal output or reversed output. 80 mA

Max. applied voltage (NPN only)

30 VDC

Internal voltage drop (Residual voltage)

1.5 V or less (at load current of 80 mA)

Delay time9

5 ms or less, variable from 0 to 60 s/0.01 s increments

Hysteresis10

Variable from 0

Protection

Switch output power supply polarity protection, over current protection

Power supply voltage

18 to 30 VDC

Electrical

Current consumption

85 mA or less

Protection

Power supply polarity protection

Display mode

Main screen: Instantaneous flow rate display Sub screen: Select from set flow rate display, accumulated flow rate display, etc.

Display

Unit11

Instantaneous flow Accumulated flow

L/min, gal/min L, gal

Display Digital filter12

Display method: LCD, Display color: White/Orange/ Red/Green/Blue, 90/180/270° rotatable,
Display values updated 10 times per second
Select from 0.5, 1.0, 2.5, 5, 10, 30, or 60 s.

Enclosure

IP65/IP67

Withstand voltage

250 VAC for 1 min between terminals and housing

Environmental Insulation resistance 2 M or more between terminals and housing (with 50 VDC)

resistance

Operating

Operating: 0 to 50°C, Stored: -10 to 60°C (No freezing

temperature range

or condensation)

Operating humidity range Operating/Stored: 35 to 85% R.H. (No condensation)

Standards

CE/UKCA marking

Material

Detection part: Special rubber, Mounting bracket: Stainless steel 304

Weight

Body: 165 g, Mounting bracket: 46 g (PFUW760), 45 g (PFUW711) Lead wire with connector: +90 g

1 Detection may be unstable depending on the piping type and condition. (e.g. lining pipe or coating pipe) The recommended piping materials are as shown below. · Metal piping: SGP, stainless steel 304 (sch20/40/80) · Hard resin piping: VP, HIVP, HTVP For other types of piping, adjust via “F11,” the measurement value inclination fine adjustment function.
2 The detection may become unstable if the fluid contains a large amount of foreign matter or air bubbles.
3 Set point range will change according to the setting of the zero cut-off function.
4 When using the accumulated value hold function, use the operating conditions to calculate the product life, and do not exceed it. The maximum update limit of the memory device is 1 million times. If the product is operated 24 hours per day, the product life will be as follows: · 2 min interval: life is calculated as 2 min x 1 million = 2 million min = approx. 3.8 years · 5 min interval: life is calculated as 5 min x 1 million = 5 million min = approx. 9.5 years If the accumulated value external reset is repeatedly used, the product life will be shorter than the calculated life.
5 This is the guaranteed value under our equipment conditions. Errors may occur depending on the operating conditions (piping type, condition, fluid, temperature). The specifications are for when the flow velocity distribution is stable. Pulsation from equipment and flow velocity distribution fluctuations are not included.
6 When using a product with an analog output 7 When selecting 0 to 10 V, refer to the analog output
graph for the allowable load current. 8 Switch output or external input can be selected by
pressing the buttons. 9 The time from when the instantaneous flow reaches
the set value to when the switch output operates can be set. 10 If the flow fluctuates around the set value, the
hysteresis must be set to a value more than the fluctuating width. Otherwise, chattering will occur. 11 Setting is only possible for models with the units selection function. 12 The time for the digital filter can be set to the sensor input. The response time indicates when the set value is 90% in relation to the step input. Products with tiny scratches, marks, or display color or brightness variations which do not affect the performance of the product are verified as conforming products.

PFUW Series

Specifications

Communication Specifications (IO-Link mode)

IO-Link type IO-Link version Communication speed Configuration file Minimum cycle time Process data length On request data communication Data storage function Event function Vendor ID

Device V1.1
COM2 (38.4 kbps) IODD file1 4.5 ms
Input data: 8 bytes, Output data: 0 bytes Available Available Available
131 (0 x 0083)

Device ID2

PFUW760-L1-: 667 (0 x 029B) PFUW760-L2-: 668 (0 x 029C) PFUW760-L3-: 669 (0 x 029D) PFUW760-L4-: 670 (0 x 029E) PFUW711-L1-: 671 (0 x 029F) PFUW711-L2-: 672 (0 x 02A0) PFUW711-L3-: 673 (0 x 02A1) PFUW711-L4-: 674 (0 x 02A2)

1 The configuration file can be downloaded from the SMC website. 2 The device ID differs according to each product type.

Flow Range

Model PFUW760 PFUW711

-5

-3

-3 L/min -3 L/min

-5 L/min -5 L/min

0 0 L/min
0 L/min

Flow range [L/min] 60 60 L/min

84
84 L/min 84 L/min

Rated flow range

100 100 L/min
Set point range

140
140 L/min 140 L/min
Display range

Flow Rate / Analog Output

Voltage output (1 to 5 V)1 Current output1

A 1 V 4 mA

B 5 V 20 mA

Voltage output (0 to 10 V)1, 3

0 L/min 0 V

C 10 V

1 Analog output accuracy is within ±3% F.S. 2 Analog output is not affected by the zero-cut function settings. 3 The analog output current from the connected equipment should be 20 A or less when
selecting 0 to 10 V. When 20 A or more current flows, it is possible that the accuracy is not satisfied at less than or equal to 0.5 V.

Model
PFUW760 PFUW711

Min. value of the Max. value of the rated flow range rated flow range

0 L/min

60 L/min

0 L/min

100 L/min

Output Output

C B

Max. value of the Flow

rated flow range rate

PFUW For liquids Clamp-on Type Flow Sensor

Series

Flow Rate Measurement Method

Ultrasonic propagation time difference method
When fluid flows, a difference in signal propagation time is created in the forward and reverse directions. Basically, the ultrasonic propagation time in the forward direction is shorter, and the propagation time in the reverse direction is longer. The ultrasonic propagation time difference method measures this difference in propagation time, and the flow rate is calculated from the flow velocity determined from the time difference and the cross-sectional area of the channel.

Ultrasonic sensor 1 (Upstream)

Ultrasonic sensor 2 (Downstream)

Piping

Flow

: Ultrasonic propagation path : Forward direction : Reverse direction

Piping Characteristics (Reference Data)
If it is allowable for the display accuracy to be within ±5% F.S., a straight section is not required.
These are the results using our equipment. Under different conditions, the results may vary. The “straight section” refers to a section of piping without any bends or rapid changes in the cross sectional area.
Straight section

OUT

PFUW Series

Dimensions

Detection unit dimensions 0.6

93.4

74.5

(40.5)

1.5

30.8

38.5

1.5

Dimensions with mounting brackets included
(96.4)

(38)

For (60 L)

(40.5)

1.5

(24.4)

(37.4)

(45.1)

For (100 L)

(41.5) 24.4

4 10.2

Clamp assembly (ZS-57-60LR)
38
Clamp assembly (ZS-57-11LR)
38

4 10.2

(47) 23.4

(23.4)

(36.4)

(44.1)

PFUW For liquids Clamp-on Type Flow Sensor

Series

Dimensions

ZS-37-A
Lead wire with M12 connector

38.5

1: Brown

2: White

3000 45

ø15

1 4
4: Black
M12

2 3
3: Blue

Pin no. 1 2 3 4

Pin name DC(+) OUT2 DC(-) OUT1

Wire color Brown White Blue Black

4-wire type lead wire with M12 connector used for the PFUW series

Cable Specifications
Conductor Nominal cross section O.D.
Insulator Color

Sheath

Finished O.D.

AWG23 Approx. 1.1 mm
Brown, Blue, Black, White
ø4

ZS-49-A

Lead wire with M12-M12 connector

M12 4-pin female connector

No. 1

No. 2 (Straight)

ø15

No. 4

No. 3

38.5

M12 4-pin female connector
pin numbers

ø4

3000

M12 4-pin male connector (Straight)
42.5

ø15

No. 4

No. 3

No. 1

No. 2

M12 4-pin male connector
pin numbers

M12 (Female) M12 (Male)

L+

N.C. or other

L-

C/Q

Wiring diagram

For wiring, refer to the “Operation Manual” on the SMC website.

Safety Instructions

These safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.” They are all important notes for safety and must be followed in addition to International Standards (ISO/IEC)1), and other safety regulations.

Danger : Danger indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.
Warning: Warning indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.

1) ISO 4414: Pneumatic fluid power – General rules and safety requirements for systems and their components ISO 4413: Hydraulic fluid power – General rules and safety requirements for systems and their components IEC 60204-1: Safety of machinery – Electrical equipment of machines – Part 1: General requirements ISO 10218-1: Robots and robotic devices – Safety requirements for industrial robots – Part 1:Robots etc.

Caution: Caution indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.

Warning

Caution

ES100-167-PFUW Clamp on Type Flow Sensor

“

Specifications

Product Name: PFUW Series Clamp-on Type Flow Sensor
IP Rating: IP65, IP67
Flow Rate Range: 0 to 100 L/min
Applicable Fluids: General liquids, Beverage, Oil, Antifreeze,
Chemical liquids, Water, High-pressure fluids
Port Sizes: Nominal A – 15A, Nominal B – 1/2; Nominal A – 20A,
Nominal B – 3/4
Color Display: Yes, 2-screen display supported
Screen Size: 1.44 inch
Resolution/Color: 128 x 128/RGB

Product Usage Instructions

Mounting Instructions

Wrap the bands around the pipe.
Secure the screws to mount the sensor.
No sensor inside piping is required for installation.

Flow Sensor Placement

The sensor can be easily mounted to piping with only 2 bands and
2 screws. It can also be retrofitted to existing piping at any
position with two simple steps.

Compatible Piping Types

The flow sensor is compatible with screw-in piping (PF3W711) and
clamp-on type piping (PFUW711).

Color Display Features

The color display supports a 2-screen display for checking
instantaneous flow rate, set value, accumulated flow rate, and more
at a glance.

Ultrasonic Reception Strength Display

The ultrasonic reception strength display allows you to confirm
the product mounting status by checking the ultrasonic detection
level.

FAQ

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

A: The compatible fluids include general liquids, beverage, oil,
antifreeze, chemical liquids, water, and high-pressure fluids.

Q: Does the flow sensor require any piping work for
installation?

A: No, the PFUW Series Clamp-on Type Flow Sensor does not
require any piping work. It can be easily mounted with bands and
screws.

“`

View Fullscreen

For liquids
Clamp-on Type Flow Sensor

IP65 IP67

Benefit from the eight
“zeros” with clamp
mounting!

“Easy mounting and retrofitting” Reduced installation work

PFUW Series

CAT.ES100-167A

For liquids Clamp-on Type Flow Sensor PFUW Series

Benefit from the 8 “zeros” with clamp mounting!

No piping work required
·Zero piping work ·Zero leakage

Can be easily mounted to piping with only 2 bands and 2 screws!
Band

Can be retrofitted to existing piping at any position with two steps

Screw

Wrap the bands around any pipe.

Secure the screws.

·Rated flow rate range from zero L/min

Can detect when there is no fluid flowing in piping (0 L/min)

Applicable port size

Model

Nominal A Nominal B 0.5 5

Flow range [L/min] 40

PFUW760 15A

1/2″ 0

PFUW711 20A

3/4″ 0

100
100

For liquids Clamp-on Type Flow Sensor PFUW Series

Types of compatible piping

Flow rate 60 L type 100 L type

Port size Nominal A 15A 20A

Nominal B 1/2″ 3/4″

Applicable fluids

General liquids

Beverage

Oil

Antifreeze

Chemical liquids

Water

High-pressure fluids

Can be mounted in close proximity (Reduced installation space)

Screw-in piping PF3W711

Clamp-on type PFUW711

Tool interference when mounting the screw-in type
312 mm

Space saving
168 mm
(54%)
shorter

144 mm

Example For use in combination with manifolds for water

Supply type PF3WS

PF3WS

Supply

Cooling area Cooling area Cooling area

PFUW Return

Chiller unit

Cooling tower

For liquids Clamp-on Type Flow Sensor PFUW Series

Color display/2-screen display supported

For the confirmation of the instantaneous flow rate, set value, and accumulated flow rate at a glance

Main screen
Instantaneous flow rate
Sub screen
Set value, accumulated flow rate, etc.

Size
1.44 inch

Resolution/Color
128 x 128/RGB

Improved visibility and operability

OUT

90°

OUT

90°

The display screen can be rotated in 90° increments.

90° OUT IN

IN 90° OUT

The color display allows for improved visibility. And the 2-screen display allows you to check the status at a glance.

Instantaneous flow rate value

Main screen
Instantaneous flow rate value
Sub screen
Set value IO-Link status Accumulated flow rate value Peak/bottom
value Line name

Blue background with white characters

Red background with white characters

Black background with Black background with Black background with

green characters

red characters

white characters

Set value

IO-Link status

Accumulated flow rate value

Peak/bottom value

Line name

Ultrasonic reception strength display: Ultrasonic indicator

Icon

Ultrasonic detection level

Description

Note

Level 0

Detection is disabled.

Level 1

Low stability

Check the piping condition and product mounting status. Depending on the piping condition, changing the piping mounting position may improve the ultrasonic detection level.

Level 2

Medium stability

Recommended value Stable measurement is possible.

Level 3

High stability

Recommended value Stable measurement is possible.

Level 4

Excessive The ultrasonic detection level is too high. Flow measurement may become unstable. ultrasonic detection Change the ultrasonic transmission level (F11 Power) to “Low.”

For liquids Clamp-on Type Flow Sensor PFUW Series

Applications
For the cooling of processing machines (casting machines)

For the beverage management of filler machines

For drainage management

For the cooling of welding guns

For the cooling of PET bottle molding machines

For coolant management

Applicable fluids General liquids: Beverage, Oil, Antifreeze, Chemical liquids, Water, High-pressure fluids 4

For liquids Clamp-on Type Flow Sensor PFUW Series

IO-Link Compatible PFUW7– Supports the IO-Link communication protocol

PLC
Fieldbus

Configuration File (IODD File1) · Manufacturer · Product part no. · Set value

1 IODD File

IODD is an abbreviation of IO Device

Description. This file is necessary for setting

the device and connecting it to a master. Save

the IODD file on the PC to be used to set the

device prior to use.

p. 7
IO-Link is an open communication interface technology between the sensor/ actuator and the I/O terminal that is an international standard, IEC 61131-9.

Device settings can be set by the master.
· Threshold value · Operation mode,
etc. · Flow rate
command value

Read the device data.
· Switch ON/OFF signal and analog value · Device information:
Manufacturer, Product part number, Serial number, etc. · Normal or abnormal device status · Cable breakage

IO-Link Master

IO-Link Compatible Device: Digital Flow Switch

For the confirmation of the status via the input process data

Input Process Data

Bit offset 63

Item

Accumulated measurement value, upper (PD)

Bit offset 47

Item

Accumulated measurement value, lower (PD)

Bit offset 31

Item

Flow rate measurement value (PD)

Bit offset Item

15
System error

14 Error

Fixed Ultrasonic output error

Reservation

Flow rate Accumulation Flow rate diagnosis diagnosis unit

Ultrasonic intensity

Instantaneous Instantaneous Accumulated Accumulated

Bit offset 0
1 2 3 4 to 6 7 8 9 12 13 14 15 16 to 31
32 to 47
48 to 63

Item

Note

Accumulated OUT1 output

0: Less than the set value 1: Greater than the set value

Accumulated OUT2 output

0: Less than the set value 1: Greater than the set value

Instantaneous OUT1 output

0: OFF 1: ON

Instantaneous OUT2 output

0: OFF 1: ON

Ultrasonic intensity indicator

0 to 4

Flow rate unit

0: L/min 1: gal/min

Diagnosis (Accumulated flow rate) 0: Within range 1: Out of range

Diagnosis (Instantaneous flow rate) 0: Within range 1: Out of range

Ultrasonic measurement error

0: No error 1: error

Fixed output

0: OFF 1: ON

Error (Other than system error)

0: OFF 1: ON

Error (System error)

0: OFF 1: ON

Instantaneous flow rate measurement value
Accumulated flow rate measurement value (lower)
Accumulated flow rate measurement value (upper)

Signed 16 bit Unsigned 32 bit Unsigned 32 bit

Diagnosis items
· Over current error · Outside of rated flow range/accumulated flow range · Internal product malfunction · Outside of zero-clear range

Communication IO-Link with master communication status
Yes

Status Operate
Normal Start up Preoperate

Screen display

Description
Normal communication
status
At the start of communication

IO-Link mode

Version does not match

The IO-Link version does not match that of the master.

Abnormal

Normal

Communication disconnection

communication was not
received for 1 s or longer.

OFF

SIO mode

General switch output

If the version of the connected IO-Link master is something other than “V1.1,” the display will show an error.

For liquids Clamp-on Type Flow Sensor
PFUW Series IP65 IP67

How to Order
PFUW7 60 L1 M

Symbol Rated flow range

0 to 60 L/min

0 to 100 L/min

Rated flow range

Applicable port size

Nominal A Nominal B

15A

1/2″

20A

3/4″

Output specification

Symbol L1 L2
L3

OUT1 IO-Link/NPN/PNP IO-Link/NPN/PNP
IO-Link/NPN/PNP

OUT2 —
NPN/PNP/External input
Analog output (1 to 5 V 0 to 10 V)1

IO-Link/NPN/PNP

Analog output (4 to 20 mA)

1 1 to 5 V or 0 to 10 V can be selected by pressing the button. The default setting is 1 to 5 V.

Calibration certificate5

Symbol Calibration certificate

Nil

—

5 The certificate is in both English and Japanese.

Unit specification

Symbol Nil M

Description Units selection function3
SI unit only4

Option

Symbol Nil N Q

Description With lead wire with M12 connector (3 m)
Without lead wire with M12 connector With lead wire with M12-M12 connector (3 m)2

2 One side has an M12 (socket), and the other side has an M12 (plug) lead wire with a connector.

Options/Part Nos. When only optional parts are required, order with the part numbers listed below.

Part no.

Option

Note

ZS-37-A

Lead wire with M12 connector

Length: 3 m

ZS-49-A

Lead wire with M12-M12 connector Male/female conversion, Length: 3 m

ZS-57-60LR Clamp assembly set 60

Left/right mounting bracket set (for the 60 L range)

ZS-57-11LR Clamp assembly set 100

Left/right mounting bracket set (for the 100 L range)

ZS-57-A

Rubber sheet

Replacement parts

Rubber sheet

PFUW For liquids Clamp-on Type Flow Sensor

Series

Specifications

For flow switch precautions and specific product precautions, refer to the “Operation Manual” on the SMC website.

Piping Fluid
Flow
Accuracy5 Analog output6 External input8

Model Applicable piping material1

PFUW760

PFUW711

Metal piping, Hard resin piping

Piping A type
diameter B type Applicable fluid2

15A

20A

1/2B

3/4B

General liquids (Water, Oil, Chemical liquids, etc.)

Fluid temperature range

0 to 90°C (No freezing or condensation)

Detection method Ultrasonic method (Propagation time difference method)

Rated flow range

0 to 60 L/min

0 to 100 L/min

(Flow under 0.6 L/min is (Flow under 1.0 L/min is displayed as 0.0 L/min)3 displayed as 0.0 L/min)3

Display/Set Instantaneous flow rate flow rate range Accumulated flow

-3 to 84 L/min

-5 to 140 L/min

0 to 999,999,999 L

Display/Minimum Instantaneous flow rate setting unit Accumulated flow

0.1 L/min 1 L

Zero cut-off range 0 to ±10% F.S. (Select per 1% F.S. for the maximum rated flow rate.)

Accumulated volume per pulse (Pulse width = 50 msec.)
Accumulated value hold function

1 L/pulse Interval of 2 or 5 minutes can be selected.4

Flow rate accuracy

±3.0% F.S.

Analog output accuracy

±3.0% F.S.

Repeatability

±2.0% F.S.

Temperature characteristics Output type

±5.0% F.S. (25°C standard) Voltage output: Select from 1 to 5 V or 0 to 10 V7,
Current output: 4 to 20 mA

Impedance

Voltage output Current output

Output impedance: Approx. 1 k Max. load impedance: 600 at power supply voltage of 24 V

Input type

Input voltage: NPN setting: 0.4 V or less (Reed or Solid state) PNP setting DC (+) -1 V or more

Input mode

Select from accumulated value external reset, peak/ bottom reset, or zero-clear.

Input time

30 ms or more

Output type

Select from NPN or PNP open collector.

Output mode

Select from hysteresis, window comparator, accumulated output, accumulated pulse output, error
output, or switch output OFF modes.

Switch output

Switch operation Max. load current

Select from normal output or reversed output. 80 mA

Max. applied voltage (NPN only)

30 VDC

Internal voltage drop (Residual voltage)

1.5 V or less (at load current of 80 mA)

Delay time9

5 ms or less, variable from 0 to 60 s/0.01 s increments

Hysteresis10

Variable from 0

Protection

Switch output power supply polarity protection, over current protection

Power supply voltage

18 to 30 VDC

Electrical

Current consumption

85 mA or less

Protection

Power supply polarity protection

Display mode

Main screen: Instantaneous flow rate display Sub screen: Select from set flow rate display, accumulated flow rate display, etc.

Display

Unit11

Instantaneous flow Accumulated flow

L/min, gal/min L, gal

Display Digital filter12

Display method: LCD, Display color: White/Orange/ Red/Green/Blue, 90/180/270° rotatable,
Display values updated 10 times per second
Select from 0.5, 1.0, 2.5, 5, 10, 30, or 60 s.

Enclosure

IP65/IP67

Withstand voltage

250 VAC for 1 min between terminals and housing

Environmental Insulation resistance 2 M or more between terminals and housing (with 50 VDC)

resistance

Operating

Operating: 0 to 50°C, Stored: -10 to 60°C (No freezing

temperature range

or condensation)

Operating humidity range Operating/Stored: 35 to 85% R.H. (No condensation)

Standards

CE/UKCA marking

Material

Detection part: Special rubber, Mounting bracket: Stainless steel 304

Weight

Body: 165 g, Mounting bracket: 46 g (PFUW760), 45 g (PFUW711) Lead wire with connector: +90 g

PFUW Series

Specifications

Communication Specifications (IO-Link mode)

IO-Link type IO-Link version Communication speed Configuration file Minimum cycle time Process data length On request data communication Data storage function Event function Vendor ID

Device V1.1
COM2 (38.4 kbps) IODD file1 4.5 ms
Input data: 8 bytes, Output data: 0 bytes Available Available Available
131 (0 x 0083)

Device ID2

1 The configuration file can be downloaded from the SMC website. 2 The device ID differs according to each product type.

Flow Range

Model PFUW760 PFUW711

-5

-3

-3 L/min -3 L/min

-5 L/min -5 L/min

0 0 L/min
0 L/min

Flow range [L/min] 60 60 L/min

84
84 L/min 84 L/min

Rated flow range

100 100 L/min
Set point range

140
140 L/min 140 L/min
Display range

Flow Rate / Analog Output

Voltage output (1 to 5 V)1 Current output1

A 1 V 4 mA

B 5 V 20 mA

Voltage output (0 to 10 V)1, 3

0 L/min 0 V

C 10 V

Model
PFUW760 PFUW711

Min. value of the Max. value of the rated flow range rated flow range

0 L/min

60 L/min

0 L/min

100 L/min

Output Output

C B

Max. value of the Flow

rated flow range rate

PFUW For liquids Clamp-on Type Flow Sensor

Series

Flow Rate Measurement Method

Ultrasonic sensor 1 (Upstream)

Ultrasonic sensor 2 (Downstream)

Piping

Flow

: Ultrasonic propagation path : Forward direction : Reverse direction

OUT

PFUW Series

Dimensions

Detection unit dimensions 0.6

93.4

74.5

(40.5)

1.5

30.8

38.5

1.5

Dimensions with mounting brackets included
(96.4)

(38)

For (60 L)

(40.5)

1.5

(24.4)

(37.4)

(45.1)

For (100 L)

(41.5) 24.4

4 10.2

Clamp assembly (ZS-57-60LR)
38
Clamp assembly (ZS-57-11LR)
38

4 10.2

(47) 23.4

(23.4)

(36.4)

(44.1)

PFUW For liquids Clamp-on Type Flow Sensor

Series

Dimensions

ZS-37-A
Lead wire with M12 connector

38.5

1: Brown

2: White

3000 45

ø15

1 4
4: Black
M12

2 3
3: Blue

Pin no. 1 2 3 4

Pin name DC(+) OUT2 DC(-) OUT1

Wire color Brown White Blue Black

4-wire type lead wire with M12 connector used for the PFUW series

Cable Specifications
Conductor Nominal cross section O.D.
Insulator Color

Sheath

Finished O.D.

AWG23 Approx. 1.1 mm
Brown, Blue, Black, White
ø4

ZS-49-A

Lead wire with M12-M12 connector

M12 4-pin female connector

No. 1

No. 2 (Straight)

ø15

No. 4

No. 3

38.5

M12 4-pin female connector
pin numbers

ø4

3000

M12 4-pin male connector (Straight)
42.5

ø15

No. 4

No. 3

No. 1

No. 2

M12 4-pin male connector
pin numbers

M12 (Female) M12 (Male)

L+

N.C. or other

L-

C/Q

Wiring diagram

For wiring, refer to the “Operation Manual” on the SMC website.

Safety Instructions

Caution: Caution indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.

Warning

Caution

ES100-167-PFUW Clamp on Type Flow Sensor

“

Specifications

Product Name: PFUW Series Clamp-on Type Flow Sensor
IP Rating: IP65, IP67
Flow Rate Range: 0 to 100 L/min
Applicable Fluids: General liquids, Beverage, Oil, Antifreeze,
Chemical liquids, Water, High-pressure fluids
Port Sizes: Nominal A – 15A, Nominal B – 1/2; Nominal A – 20A,
Nominal B – 3/4
Color Display: Yes, 2-screen display supported
Screen Size: 1.44 inch
Resolution/Color: 128 x 128/RGB

Product Usage Instructions

Mounting Instructions

Wrap the bands around the pipe.
Secure the screws to mount the sensor.
No sensor inside piping is required for installation.

Flow Sensor Placement

The sensor can be easily mounted to piping with only 2 bands and
2 screws. It can also be retrofitted to existing piping at any
position with two simple steps.

Compatible Piping Types

The flow sensor is compatible with screw-in piping (PF3W711) and
clamp-on type piping (PFUW711).

Color Display Features

The color display supports a 2-screen display for checking
instantaneous flow rate, set value, accumulated flow rate, and more
at a glance.

Ultrasonic Reception Strength Display

The ultrasonic reception strength display allows you to confirm
the product mounting status by checking the ultrasonic detection
level.

FAQ

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

A: The compatible fluids include general liquids, beverage, oil,
antifreeze, chemical liquids, water, and high-pressure fluids.

Q: Does the flow sensor require any piping work for
installation?

A: No, the PFUW Series Clamp-on Type Flow Sensor does not
require any piping work. It can be easily mounted with bands and
screws.

“`

View Fullscreen

For liquids
Clamp-on Type Flow Sensor

IP65 IP67

Benefit from the eight
“zeros” with clamp
mounting!

“Easy mounting and retrofitting” Reduced installation work

PFUW Series

CAT.ES100-167A

For liquids Clamp-on Type Flow Sensor PFUW Series

Benefit from the 8 “zeros” with clamp mounting!

No piping work required
·Zero piping work ·Zero leakage

Can be easily mounted to piping with only 2 bands and 2 screws!
Band

Can be retrofitted to existing piping at any position with two steps

Screw

Wrap the bands around any pipe.

Secure the screws.

·Rated flow rate range from zero L/min

Can detect when there is no fluid flowing in piping (0 L/min)

Applicable port size

Model

Nominal A Nominal B 0.5 5

Flow range [L/min] 40

PFUW760 15A

1/2″ 0

PFUW711 20A

3/4″ 0

100
100

For liquids Clamp-on Type Flow Sensor PFUW Series

Types of compatible piping

Flow rate 60 L type 100 L type

Port size Nominal A 15A 20A

Nominal B 1/2″ 3/4″

Applicable fluids

General liquids

Beverage

Oil

Antifreeze

Chemical liquids

Water

High-pressure fluids

Can be mounted in close proximity (Reduced installation space)

Screw-in piping PF3W711

Clamp-on type PFUW711

Tool interference when mounting the screw-in type
312 mm

Space saving
168 mm
(54%)
shorter

144 mm

Example For use in combination with manifolds for water

Supply type PF3WS

PF3WS

Supply

Cooling area Cooling area Cooling area

PFUW Return

Chiller unit

Cooling tower

For liquids Clamp-on Type Flow Sensor PFUW Series

Color display/2-screen display supported

For the confirmation of the instantaneous flow rate, set value, and accumulated flow rate at a glance

Main screen
Instantaneous flow rate
Sub screen
Set value, accumulated flow rate, etc.

Size
1.44 inch

Resolution/Color
128 x 128/RGB

Improved visibility and operability

OUT

90°

OUT

90°

The display screen can be rotated in 90° increments.

90° OUT IN

IN 90° OUT

The color display allows for improved visibility. And the 2-screen display allows you to check the status at a glance.

Instantaneous flow rate value

Main screen
Instantaneous flow rate value
Sub screen
Set value IO-Link status Accumulated flow rate value Peak/bottom
value Line name

Blue background with white characters

Red background with white characters

Black background with Black background with Black background with

green characters

red characters

white characters

Set value

IO-Link status

Accumulated flow rate value

Peak/bottom value

Line name

Ultrasonic reception strength display: Ultrasonic indicator

Icon

Ultrasonic detection level

Description

Note

Level 0

Detection is disabled.

Level 1

Low stability

Check the piping condition and product mounting status. Depending on the piping condition, changing the piping mounting position may improve the ultrasonic detection level.

Level 2

Medium stability

Recommended value Stable measurement is possible.

Level 3

High stability

Recommended value Stable measurement is possible.

Level 4

Excessive The ultrasonic detection level is too high. Flow measurement may become unstable. ultrasonic detection Change the ultrasonic transmission level (F11 Power) to “Low.”

For liquids Clamp-on Type Flow Sensor PFUW Series

Applications
For the cooling of processing machines (casting machines)

For the beverage management of filler machines

For drainage management

For the cooling of welding guns

For the cooling of PET bottle molding machines

For coolant management

Applicable fluids General liquids: Beverage, Oil, Antifreeze, Chemical liquids, Water, High-pressure fluids 4

For liquids Clamp-on Type Flow Sensor PFUW Series

IO-Link Compatible PFUW7– Supports the IO-Link communication protocol

PLC
Fieldbus

Configuration File (IODD File1) · Manufacturer · Product part no. · Set value

1 IODD File

IODD is an abbreviation of IO Device

Description. This file is necessary for setting

the device and connecting it to a master. Save

the IODD file on the PC to be used to set the

device prior to use.

p. 7
IO-Link is an open communication interface technology between the sensor/ actuator and the I/O terminal that is an international standard, IEC 61131-9.

Device settings can be set by the master.
· Threshold value · Operation mode,
etc. · Flow rate
command value

Read the device data.
· Switch ON/OFF signal and analog value · Device information:
Manufacturer, Product part number, Serial number, etc. · Normal or abnormal device status · Cable breakage

IO-Link Master

IO-Link Compatible Device: Digital Flow Switch

For the confirmation of the status via the input process data

Input Process Data

Bit offset 63

Item

Accumulated measurement value, upper (PD)

Bit offset 47

Item

Accumulated measurement value, lower (PD)

Bit offset 31

Item

Flow rate measurement value (PD)

Bit offset Item

15
System error

14 Error

Fixed Ultrasonic output error

Reservation

Flow rate Accumulation Flow rate diagnosis diagnosis unit

Ultrasonic intensity

Instantaneous Instantaneous Accumulated Accumulated

Bit offset 0
1 2 3 4 to 6 7 8 9 12 13 14 15 16 to 31
32 to 47
48 to 63

Item

Note

Accumulated OUT1 output

0: Less than the set value 1: Greater than the set value

Accumulated OUT2 output

0: Less than the set value 1: Greater than the set value

Instantaneous OUT1 output

0: OFF 1: ON

Instantaneous OUT2 output

0: OFF 1: ON

Ultrasonic intensity indicator

0 to 4

Flow rate unit

0: L/min 1: gal/min

Diagnosis (Accumulated flow rate) 0: Within range 1: Out of range

Diagnosis (Instantaneous flow rate) 0: Within range 1: Out of range

Ultrasonic measurement error

0: No error 1: error

Fixed output

0: OFF 1: ON

Error (Other than system error)

0: OFF 1: ON

Error (System error)

0: OFF 1: ON

Instantaneous flow rate measurement value
Accumulated flow rate measurement value (lower)
Accumulated flow rate measurement value (upper)

Signed 16 bit Unsigned 32 bit Unsigned 32 bit

Diagnosis items
· Over current error · Outside of rated flow range/accumulated flow range · Internal product malfunction · Outside of zero-clear range

Communication IO-Link with master communication status
Yes

Status Operate
Normal Start up Preoperate

Screen display

Description
Normal communication
status
At the start of communication

IO-Link mode

Version does not match

The IO-Link version does not match that of the master.

Abnormal

Normal

Communication disconnection

communication was not
received for 1 s or longer.

OFF

SIO mode

General switch output

If the version of the connected IO-Link master is something other than “V1.1,” the display will show an error.

For liquids Clamp-on Type Flow Sensor
PFUW Series IP65 IP67

How to Order
PFUW7 60 L1 M

Symbol Rated flow range

0 to 60 L/min

0 to 100 L/min

Rated flow range

Applicable port size

Nominal A Nominal B

15A

1/2″

20A

3/4″

Output specification

Symbol L1 L2
L3

OUT1 IO-Link/NPN/PNP IO-Link/NPN/PNP
IO-Link/NPN/PNP

OUT2 —
NPN/PNP/External input
Analog output (1 to 5 V 0 to 10 V)1

IO-Link/NPN/PNP

Analog output (4 to 20 mA)

1 1 to 5 V or 0 to 10 V can be selected by pressing the button. The default setting is 1 to 5 V.

Calibration certificate5

Symbol Calibration certificate

Nil

—

5 The certificate is in both English and Japanese.

Unit specification

Symbol Nil M

Description Units selection function3
SI unit only4

Option

Symbol Nil N Q

Description With lead wire with M12 connector (3 m)
Without lead wire with M12 connector With lead wire with M12-M12 connector (3 m)2

2 One side has an M12 (socket), and the other side has an M12 (plug) lead wire with a connector.

Options/Part Nos. When only optional parts are required, order with the part numbers listed below.

Part no.

Option

Note

ZS-37-A

Lead wire with M12 connector

Length: 3 m

ZS-49-A

Lead wire with M12-M12 connector Male/female conversion, Length: 3 m

ZS-57-60LR Clamp assembly set 60

Left/right mounting bracket set (for the 60 L range)

ZS-57-11LR Clamp assembly set 100

Left/right mounting bracket set (for the 100 L range)

ZS-57-A

Rubber sheet

Replacement parts

Rubber sheet

PFUW For liquids Clamp-on Type Flow Sensor

Series

Specifications

For flow switch precautions and specific product precautions, refer to the “Operation Manual” on the SMC website.

Piping Fluid
Flow
Accuracy5 Analog output6 External input8

Model Applicable piping material1

PFUW760

PFUW711

Metal piping, Hard resin piping

Piping A type
diameter B type Applicable fluid2

15A

20A

1/2B

3/4B

General liquids (Water, Oil, Chemical liquids, etc.)

Fluid temperature range

0 to 90°C (No freezing or condensation)

Detection method Ultrasonic method (Propagation time difference method)

Rated flow range

0 to 60 L/min

0 to 100 L/min

(Flow under 0.6 L/min is (Flow under 1.0 L/min is displayed as 0.0 L/min)3 displayed as 0.0 L/min)3

Display/Set Instantaneous flow rate flow rate range Accumulated flow

-3 to 84 L/min

-5 to 140 L/min

0 to 999,999,999 L

Display/Minimum Instantaneous flow rate setting unit Accumulated flow

0.1 L/min 1 L

Zero cut-off range 0 to ±10% F.S. (Select per 1% F.S. for the maximum rated flow rate.)

Accumulated volume per pulse (Pulse width = 50 msec.)
Accumulated value hold function

1 L/pulse Interval of 2 or 5 minutes can be selected.4

Flow rate accuracy

±3.0% F.S.

Analog output accuracy

±3.0% F.S.

Repeatability

±2.0% F.S.

Temperature characteristics Output type

±5.0% F.S. (25°C standard) Voltage output: Select from 1 to 5 V or 0 to 10 V7,
Current output: 4 to 20 mA

Impedance

Voltage output Current output

Output impedance: Approx. 1 k Max. load impedance: 600 at power supply voltage of 24 V

Input type

Input voltage: NPN setting: 0.4 V or less (Reed or Solid state) PNP setting DC (+) -1 V or more

Input mode

Select from accumulated value external reset, peak/ bottom reset, or zero-clear.

Input time

30 ms or more

Output type

Select from NPN or PNP open collector.

Output mode

Select from hysteresis, window comparator, accumulated output, accumulated pulse output, error
output, or switch output OFF modes.

Switch output

Switch operation Max. load current

Select from normal output or reversed output. 80 mA

Max. applied voltage (NPN only)

30 VDC

Internal voltage drop (Residual voltage)

1.5 V or less (at load current of 80 mA)

Delay time9

5 ms or less, variable from 0 to 60 s/0.01 s increments

Hysteresis10

Variable from 0

Protection

Switch output power supply polarity protection, over current protection

Power supply voltage

18 to 30 VDC

Electrical

Current consumption

85 mA or less

Protection

Power supply polarity protection

Display mode

Main screen: Instantaneous flow rate display Sub screen: Select from set flow rate display, accumulated flow rate display, etc.

Display

Unit11

Instantaneous flow Accumulated flow

L/min, gal/min L, gal

Display Digital filter12

Display method: LCD, Display color: White/Orange/ Red/Green/Blue, 90/180/270° rotatable,
Display values updated 10 times per second
Select from 0.5, 1.0, 2.5, 5, 10, 30, or 60 s.

Enclosure

IP65/IP67

Withstand voltage

250 VAC for 1 min between terminals and housing

Environmental Insulation resistance 2 M or more between terminals and housing (with 50 VDC)

resistance

Operating

Operating: 0 to 50°C, Stored: -10 to 60°C (No freezing

temperature range

or condensation)

Operating humidity range Operating/Stored: 35 to 85% R.H. (No condensation)

Standards

CE/UKCA marking

Material

Detection part: Special rubber, Mounting bracket: Stainless steel 304

Weight

Body: 165 g, Mounting bracket: 46 g (PFUW760), 45 g (PFUW711) Lead wire with connector: +90 g

PFUW Series

Specifications

Communication Specifications (IO-Link mode)

IO-Link type IO-Link version Communication speed Configuration file Minimum cycle time Process data length On request data communication Data storage function Event function Vendor ID

Device V1.1
COM2 (38.4 kbps) IODD file1 4.5 ms
Input data: 8 bytes, Output data: 0 bytes Available Available Available
131 (0 x 0083)

Device ID2

1 The configuration file can be downloaded from the SMC website. 2 The device ID differs according to each product type.

Flow Range

Model PFUW760 PFUW711

-5

-3

-3 L/min -3 L/min

-5 L/min -5 L/min

0 0 L/min
0 L/min

Flow range [L/min] 60 60 L/min

84
84 L/min 84 L/min

Rated flow range

100 100 L/min
Set point range

140
140 L/min 140 L/min
Display range

Flow Rate / Analog Output

Voltage output (1 to 5 V)1 Current output1

A 1 V 4 mA

B 5 V 20 mA

Voltage output (0 to 10 V)1, 3

0 L/min 0 V

C 10 V

Model
PFUW760 PFUW711

Min. value of the Max. value of the rated flow range rated flow range

0 L/min

60 L/min

0 L/min

100 L/min

Output Output

C B

Max. value of the Flow

rated flow range rate

PFUW For liquids Clamp-on Type Flow Sensor

Series

Flow Rate Measurement Method

Ultrasonic sensor 1 (Upstream)

Ultrasonic sensor 2 (Downstream)

Piping

Flow

: Ultrasonic propagation path : Forward direction : Reverse direction

OUT

PFUW Series

Dimensions

Detection unit dimensions 0.6

93.4

74.5

(40.5)

1.5

30.8

38.5

1.5

Dimensions with mounting brackets included
(96.4)

(38)

For (60 L)

(40.5)

1.5

(24.4)

(37.4)

(45.1)

For (100 L)

(41.5) 24.4

4 10.2

Clamp assembly (ZS-57-60LR)
38
Clamp assembly (ZS-57-11LR)
38

4 10.2

(47) 23.4

(23.4)

(36.4)

(44.1)

PFUW For liquids Clamp-on Type Flow Sensor

Series

Dimensions

ZS-37-A
Lead wire with M12 connector

38.5

1: Brown

2: White

3000 45

ø15

1 4
4: Black
M12

2 3
3: Blue

Pin no. 1 2 3 4

Pin name DC(+) OUT2 DC(-) OUT1

Wire color Brown White Blue Black

4-wire type lead wire with M12 connector used for the PFUW series

Cable Specifications
Conductor Nominal cross section O.D.
Insulator Color

Sheath

Finished O.D.

AWG23 Approx. 1.1 mm
Brown, Blue, Black, White
ø4

ZS-49-A

Lead wire with M12-M12 connector

M12 4-pin female connector

No. 1

No. 2 (Straight)

ø15

No. 4

No. 3

38.5

M12 4-pin female connector
pin numbers

ø4

3000

M12 4-pin male connector (Straight)
42.5

ø15

No. 4

No. 3

No. 1

No. 2

M12 4-pin male connector
pin numbers

M12 (Female) M12 (Male)

L+

N.C. or other

L-

C/Q

Wiring diagram

For wiring, refer to the “Operation Manual” on the SMC website.

Safety Instructions

Caution: Caution indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.

Warning

Caution

ES100-167-PFUW Clamp on Type Flow Sensor

“

Specifications

Product Name: PFUW Series Clamp-on Type Flow Sensor
IP Rating: IP65, IP67
Flow Rate Range: 0 to 100 L/min
Applicable Fluids: General liquids, Beverage, Oil, Antifreeze,
Chemical liquids, Water, High-pressure fluids
Port Sizes: Nominal A – 15A, Nominal B – 1/2; Nominal A – 20A,
Nominal B – 3/4
Color Display: Yes, 2-screen display supported
Screen Size: 1.44 inch
Resolution/Color: 128 x 128/RGB

Product Usage Instructions

Mounting Instructions

Wrap the bands around the pipe.
Secure the screws to mount the sensor.
No sensor inside piping is required for installation.

Flow Sensor Placement

The sensor can be easily mounted to piping with only 2 bands and
2 screws. It can also be retrofitted to existing piping at any
position with two simple steps.

Compatible Piping Types

The flow sensor is compatible with screw-in piping (PF3W711) and
clamp-on type piping (PFUW711).

Color Display Features

The color display supports a 2-screen display for checking
instantaneous flow rate, set value, accumulated flow rate, and more
at a glance.

Ultrasonic Reception Strength Display

The ultrasonic reception strength display allows you to confirm
the product mounting status by checking the ultrasonic detection
level.

FAQ

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

A: The compatible fluids include general liquids, beverage, oil,
antifreeze, chemical liquids, water, and high-pressure fluids.

Q: Does the flow sensor require any piping work for
installation?

A: No, the PFUW Series Clamp-on Type Flow Sensor does not
require any piping work. It can be easily mounted with bands and
screws.

“`

View Fullscreen

For liquids
Clamp-on Type Flow Sensor

IP65 IP67

Benefit from the eight
“zeros” with clamp
mounting!

“Easy mounting and retrofitting” Reduced installation work

PFUW Series

CAT.ES100-167A

For liquids Clamp-on Type Flow Sensor PFUW Series

Benefit from the 8 “zeros” with clamp mounting!

No piping work required
·Zero piping work ·Zero leakage

Can be easily mounted to piping with only 2 bands and 2 screws!
Band

Can be retrofitted to existing piping at any position with two steps

Screw

Wrap the bands around any pipe.

Secure the screws.

·Rated flow rate range from zero L/min

Can detect when there is no fluid flowing in piping (0 L/min)

Applicable port size

Model

Nominal A Nominal B 0.5 5

Flow range [L/min] 40

PFUW760 15A

1/2″ 0

PFUW711 20A

3/4″ 0

100
100

For liquids Clamp-on Type Flow Sensor PFUW Series

Types of compatible piping

Flow rate 60 L type 100 L type

Port size Nominal A 15A 20A

Nominal B 1/2″ 3/4″

Applicable fluids

General liquids

Beverage

Oil

Antifreeze

Chemical liquids

Water

High-pressure fluids

Can be mounted in close proximity (Reduced installation space)

Screw-in piping PF3W711

Clamp-on type PFUW711

Tool interference when mounting the screw-in type
312 mm

Space saving
168 mm
(54%)
shorter

144 mm

Example For use in combination with manifolds for water

Supply type PF3WS

PF3WS

Supply

Cooling area Cooling area Cooling area

PFUW Return

Chiller unit

Cooling tower

For liquids Clamp-on Type Flow Sensor PFUW Series

Color display/2-screen display supported

For the confirmation of the instantaneous flow rate, set value, and accumulated flow rate at a glance

Main screen
Instantaneous flow rate
Sub screen
Set value, accumulated flow rate, etc.

Size
1.44 inch

Resolution/Color
128 x 128/RGB

Improved visibility and operability

OUT

90°

OUT

90°

The display screen can be rotated in 90° increments.

90° OUT IN

IN 90° OUT

The color display allows for improved visibility. And the 2-screen display allows you to check the status at a glance.

Instantaneous flow rate value

Main screen
Instantaneous flow rate value
Sub screen
Set value IO-Link status Accumulated flow rate value Peak/bottom
value Line name

Blue background with white characters

Red background with white characters

Black background with Black background with Black background with

green characters

red characters

white characters

Set value

IO-Link status

Accumulated flow rate value

Peak/bottom value

Line name

Ultrasonic reception strength display: Ultrasonic indicator

Icon

Ultrasonic detection level

Description

Note

Level 0

Detection is disabled.

Level 1

Low stability

Check the piping condition and product mounting status. Depending on the piping condition, changing the piping mounting position may improve the ultrasonic detection level.

Level 2

Medium stability

Recommended value Stable measurement is possible.

Level 3

High stability

Recommended value Stable measurement is possible.

Level 4

Excessive The ultrasonic detection level is too high. Flow measurement may become unstable. ultrasonic detection Change the ultrasonic transmission level (F11 Power) to “Low.”

For liquids Clamp-on Type Flow Sensor PFUW Series

Applications
For the cooling of processing machines (casting machines)

For the beverage management of filler machines

For drainage management

For the cooling of welding guns

For the cooling of PET bottle molding machines

For coolant management

Applicable fluids General liquids: Beverage, Oil, Antifreeze, Chemical liquids, Water, High-pressure fluids 4

For liquids Clamp-on Type Flow Sensor PFUW Series

IO-Link Compatible PFUW7– Supports the IO-Link communication protocol

PLC
Fieldbus

Configuration File (IODD File1) · Manufacturer · Product part no. · Set value

1 IODD File

IODD is an abbreviation of IO Device

Description. This file is necessary for setting

the device and connecting it to a master. Save

the IODD file on the PC to be used to set the

device prior to use.

p. 7
IO-Link is an open communication interface technology between the sensor/ actuator and the I/O terminal that is an international standard, IEC 61131-9.

Device settings can be set by the master.
· Threshold value · Operation mode,
etc. · Flow rate
command value

Read the device data.
· Switch ON/OFF signal and analog value · Device information:
Manufacturer, Product part number, Serial number, etc. · Normal or abnormal device status · Cable breakage

IO-Link Master

IO-Link Compatible Device: Digital Flow Switch

For the confirmation of the status via the input process data

Input Process Data

Bit offset 63

Item

Accumulated measurement value, upper (PD)

Bit offset 47

Item

Accumulated measurement value, lower (PD)

Bit offset 31

Item

Flow rate measurement value (PD)

Bit offset Item

15
System error

14 Error

Fixed Ultrasonic output error

Reservation

Flow rate Accumulation Flow rate diagnosis diagnosis unit

Ultrasonic intensity

Instantaneous Instantaneous Accumulated Accumulated

Bit offset 0
1 2 3 4 to 6 7 8 9 12 13 14 15 16 to 31
32 to 47
48 to 63

Item

Note

Accumulated OUT1 output

0: Less than the set value 1: Greater than the set value

Accumulated OUT2 output

0: Less than the set value 1: Greater than the set value

Instantaneous OUT1 output

0: OFF 1: ON

Instantaneous OUT2 output

0: OFF 1: ON

Ultrasonic intensity indicator

0 to 4

Flow rate unit

0: L/min 1: gal/min

Diagnosis (Accumulated flow rate) 0: Within range 1: Out of range

Diagnosis (Instantaneous flow rate) 0: Within range 1: Out of range

Ultrasonic measurement error

0: No error 1: error

Fixed output

0: OFF 1: ON

Error (Other than system error)

0: OFF 1: ON

Error (System error)

0: OFF 1: ON

Instantaneous flow rate measurement value
Accumulated flow rate measurement value (lower)
Accumulated flow rate measurement value (upper)

Signed 16 bit Unsigned 32 bit Unsigned 32 bit

Diagnosis items
· Over current error · Outside of rated flow range/accumulated flow range · Internal product malfunction · Outside of zero-clear range

Communication IO-Link with master communication status
Yes

Status Operate
Normal Start up Preoperate

Screen display

Description
Normal communication
status
At the start of communication

IO-Link mode

Version does not match

The IO-Link version does not match that of the master.

Abnormal

Normal

Communication disconnection

communication was not
received for 1 s or longer.

OFF

SIO mode

General switch output

If the version of the connected IO-Link master is something other than “V1.1,” the display will show an error.

For liquids Clamp-on Type Flow Sensor
PFUW Series IP65 IP67

How to Order
PFUW7 60 L1 M

Symbol Rated flow range

0 to 60 L/min

0 to 100 L/min

Rated flow range

Applicable port size

Nominal A Nominal B

15A

1/2″

20A

3/4″

Output specification

Symbol L1 L2
L3

OUT1 IO-Link/NPN/PNP IO-Link/NPN/PNP
IO-Link/NPN/PNP

OUT2 —
NPN/PNP/External input
Analog output (1 to 5 V 0 to 10 V)1

IO-Link/NPN/PNP

Analog output (4 to 20 mA)

1 1 to 5 V or 0 to 10 V can be selected by pressing the button. The default setting is 1 to 5 V.

Calibration certificate5

Symbol Calibration certificate

Nil

—

5 The certificate is in both English and Japanese.

Unit specification

Symbol Nil M

Description Units selection function3
SI unit only4

Option

Symbol Nil N Q

Description With lead wire with M12 connector (3 m)
Without lead wire with M12 connector With lead wire with M12-M12 connector (3 m)2

2 One side has an M12 (socket), and the other side has an M12 (plug) lead wire with a connector.

Options/Part Nos. When only optional parts are required, order with the part numbers listed below.

Part no.

Option

Note

ZS-37-A

Lead wire with M12 connector

Length: 3 m

ZS-49-A

Lead wire with M12-M12 connector Male/female conversion, Length: 3 m

ZS-57-60LR Clamp assembly set 60

Left/right mounting bracket set (for the 60 L range)

ZS-57-11LR Clamp assembly set 100

Left/right mounting bracket set (for the 100 L range)

ZS-57-A

Rubber sheet

Replacement parts

Rubber sheet

PFUW For liquids Clamp-on Type Flow Sensor

Series

Specifications

For flow switch precautions and specific product precautions, refer to the “Operation Manual” on the SMC website.

Piping Fluid
Flow
Accuracy5 Analog output6 External input8

Model Applicable piping material1

PFUW760

PFUW711

Metal piping, Hard resin piping

Piping A type
diameter B type Applicable fluid2

15A

20A

1/2B

3/4B

General liquids (Water, Oil, Chemical liquids, etc.)

Fluid temperature range

0 to 90°C (No freezing or condensation)

Detection method Ultrasonic method (Propagation time difference method)

Rated flow range

0 to 60 L/min

0 to 100 L/min

(Flow under 0.6 L/min is (Flow under 1.0 L/min is displayed as 0.0 L/min)3 displayed as 0.0 L/min)3

Display/Set Instantaneous flow rate flow rate range Accumulated flow

-3 to 84 L/min

-5 to 140 L/min

0 to 999,999,999 L

Display/Minimum Instantaneous flow rate setting unit Accumulated flow

0.1 L/min 1 L

Zero cut-off range 0 to ±10% F.S. (Select per 1% F.S. for the maximum rated flow rate.)

Accumulated volume per pulse (Pulse width = 50 msec.)
Accumulated value hold function

1 L/pulse Interval of 2 or 5 minutes can be selected.4

Flow rate accuracy

±3.0% F.S.

Analog output accuracy

±3.0% F.S.

Repeatability

±2.0% F.S.

Temperature characteristics Output type

±5.0% F.S. (25°C standard) Voltage output: Select from 1 to 5 V or 0 to 10 V7,
Current output: 4 to 20 mA

Impedance

Voltage output Current output

Output impedance: Approx. 1 k Max. load impedance: 600 at power supply voltage of 24 V

Input type

Input voltage: NPN setting: 0.4 V or less (Reed or Solid state) PNP setting DC (+) -1 V or more

Input mode

Select from accumulated value external reset, peak/ bottom reset, or zero-clear.

Input time

30 ms or more

Output type

Select from NPN or PNP open collector.

Output mode

Select from hysteresis, window comparator, accumulated output, accumulated pulse output, error
output, or switch output OFF modes.

Switch output

Switch operation Max. load current

Select from normal output or reversed output. 80 mA

Max. applied voltage (NPN only)

30 VDC

Internal voltage drop (Residual voltage)

1.5 V or less (at load current of 80 mA)

Delay time9

5 ms or less, variable from 0 to 60 s/0.01 s increments

Hysteresis10

Variable from 0

Protection

Switch output power supply polarity protection, over current protection

Power supply voltage

18 to 30 VDC

Electrical

Current consumption

85 mA or less

Protection

Power supply polarity protection

Display mode

Main screen: Instantaneous flow rate display Sub screen: Select from set flow rate display, accumulated flow rate display, etc.

Display

Unit11

Instantaneous flow Accumulated flow

L/min, gal/min L, gal

Display Digital filter12

Display method: LCD, Display color: White/Orange/ Red/Green/Blue, 90/180/270° rotatable,
Display values updated 10 times per second
Select from 0.5, 1.0, 2.5, 5, 10, 30, or 60 s.

Enclosure

IP65/IP67

Withstand voltage

250 VAC for 1 min between terminals and housing

Environmental Insulation resistance 2 M or more between terminals and housing (with 50 VDC)

resistance

Operating

Operating: 0 to 50°C, Stored: -10 to 60°C (No freezing

temperature range

or condensation)

Operating humidity range Operating/Stored: 35 to 85% R.H. (No condensation)

Standards

CE/UKCA marking

Material

Detection part: Special rubber, Mounting bracket: Stainless steel 304

Weight

Body: 165 g, Mounting bracket: 46 g (PFUW760), 45 g (PFUW711) Lead wire with connector: +90 g

PFUW Series

Specifications

Communication Specifications (IO-Link mode)

IO-Link type IO-Link version Communication speed Configuration file Minimum cycle time Process data length On request data communication Data storage function Event function Vendor ID

Device V1.1
COM2 (38.4 kbps) IODD file1 4.5 ms
Input data: 8 bytes, Output data: 0 bytes Available Available Available
131 (0 x 0083)

Device ID2

1 The configuration file can be downloaded from the SMC website. 2 The device ID differs according to each product type.

Flow Range

Model PFUW760 PFUW711

-5

-3

-3 L/min -3 L/min

-5 L/min -5 L/min

0 0 L/min
0 L/min

Flow range [L/min] 60 60 L/min

84
84 L/min 84 L/min

Rated flow range

100 100 L/min
Set point range

140
140 L/min 140 L/min
Display range

Flow Rate / Analog Output

Voltage output (1 to 5 V)1 Current output1

A 1 V 4 mA

B 5 V 20 mA

Voltage output (0 to 10 V)1, 3

0 L/min 0 V

C 10 V

Model
PFUW760 PFUW711

Min. value of the Max. value of the rated flow range rated flow range

0 L/min

60 L/min

0 L/min

100 L/min

Output Output

C B

Max. value of the Flow

rated flow range rate

PFUW For liquids Clamp-on Type Flow Sensor

Series

Flow Rate Measurement Method

Ultrasonic sensor 1 (Upstream)

Ultrasonic sensor 2 (Downstream)

Piping

Flow

: Ultrasonic propagation path : Forward direction : Reverse direction

OUT

PFUW Series

Dimensions

Detection unit dimensions 0.6

93.4

74.5

(40.5)

1.5

30.8

38.5

1.5

Dimensions with mounting brackets included
(96.4)

(38)

For (60 L)

(40.5)

1.5

(24.4)

(37.4)

(45.1)

For (100 L)

(41.5) 24.4

4 10.2

Clamp assembly (ZS-57-60LR)
38
Clamp assembly (ZS-57-11LR)
38

4 10.2

(47) 23.4

(23.4)

(36.4)

(44.1)

PFUW For liquids Clamp-on Type Flow Sensor

Series

Dimensions

ZS-37-A
Lead wire with M12 connector

38.5

1: Brown

2: White

3000 45

ø15

1 4
4: Black
M12

2 3
3: Blue

Pin no. 1 2 3 4

Pin name DC(+) OUT2 DC(-) OUT1

Wire color Brown White Blue Black

4-wire type lead wire with M12 connector used for the PFUW series

Cable Specifications
Conductor Nominal cross section O.D.
Insulator Color

Sheath

Finished O.D.

AWG23 Approx. 1.1 mm
Brown, Blue, Black, White
ø4

ZS-49-A

Lead wire with M12-M12 connector

M12 4-pin female connector

No. 1

No. 2 (Straight)

ø15

No. 4

No. 3

38.5

M12 4-pin female connector
pin numbers

ø4

3000

M12 4-pin male connector (Straight)
42.5

ø15

No. 4

No. 3

No. 1

No. 2

M12 4-pin male connector
pin numbers

M12 (Female) M12 (Male)

L+

N.C. or other

L-

C/Q

Wiring diagram

For wiring, refer to the “Operation Manual” on the SMC website.

Safety Instructions

Caution: Caution indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.

Warning

Caution

1. The compatibility of the product is the responsibility of the person who designs the equipment or decides its specifications.
Since the product specified here is used under various operating conditions, its compatibility with specific equipment must be decided by the person who designs the equipment or decides its specifications based on necessary analysis and test results. The expected performance and safety assurance of the equipment will be the responsibility of the person who has determined its compatibility with the product. This person should also continuously review all specifications of the product referring to its latest catalog information, with a view to giving due consideration to any possibility of equipment failure when configuring the equipment.
2. Only personnel with appropriate training should operate machinery and equipment.
The product specified here may become unsafe if handled incorrectly. The assembly, operation and maintenance of machines or equipment including our products must be performed by an operator who is appropriately trained and experienced.
3. Do not service or attempt to remove product and machinery/ equipment until safety is confirmed.
1. The inspection and maintenance of machinery/equipment should only be performed after measures to prevent falling or runaway of the driven objects have been confirmed.
2. When the product is to be removed, confirm that the safety measures as mentioned above are implemented and the power from any appropriate source is cut, and read and understand the specific product precautions of all relevant products carefully.
3. Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction.
4. SMC products cannot be used beyond their specifications. They are not developed, designed, and manufactured to be used under the following conditions or environments. Use under such conditions or environments is not allowed.
1. Conditions and environments outside of the given specifications, or use outdoors or in a place exposed to direct sunlight.
2. Use for nuclear power, railways, aviation, space equipment, ships, vehicles, military application, equipment affecting human life, body, and property, combustion equipment, entertainment equipment, emergency shut-off circuits, press clutches, brake circuits, safety equipment, etc., and use for applications that do not conform to standard specifications such as catalogs and operation manuals.
3. Use for interlock circuits, except for use with double interlock such as installing a mechanical protection function in case of failure. Please periodically inspect the product to confirm that the product is operating properly.

SMC develops, designs, and manufactures products to be used for automatic control equipment, and provides them for peaceful use in manufacturing industries. Use in non-manufacturing industries is not allowed. Products SMC manufactures and sells cannot be used for the purpose of transactions or certification specified in the Measurement Act of each country. The new Measurement Act prohibits use of any unit other than SI units in Japan.
Limited warranty and Disclaimer/ Compliance Requirements
The product used is subject to the following “Limited warranty and Disclaimer” and “Compliance Requirements”. Read and accept them before using the product.
Limited warranty and Disclaimer
1. The warranty period of the product is 1 year in service or 1.5 years after the product is delivered, whichever is first.2) Also, the product may have specified durability, running distance or replacement parts. Please consult your nearest sales branch.
2. For any failure or damage reported within the warranty period which is clearly our responsibility, a replacement product or necessary parts will be provided. This limited warranty applies only to our product independently, and not to any other damage incurred due to the failure of the product.
3. Prior to using SMC products, please read and understand the warranty terms and disclaimers noted in the specified catalog for the particular products.
2) Vacuum pads are excluded from this 1 year warranty. A vacuum pad is a consumable part, so it is warranted for a year after it is delivered. Also, even within the warranty period, the wear of a product due to the use of the vacuum pad or failure due to the deterioration of rubber material are not allowed by the limited warranty.
Compliance Requirements
1. The use of SMC products with production equipment for the manufacture of weapons of mass destruction (WMD) or any other weapon is strictly prohibited.
2. The exports of SMC products or technology from one country to another are governed by the relevant security laws and regulations of the countries involved in the transaction. Prior to the shipment of a SMC product to another country, assure that all local rules governing that export are known and followed.

Safety Instructions Be sure to read the “Handling Precautions for SMC Products” (M-E03-3) and “Operation Manual” before use.

Specifications are subject to change without prior notice

D-G

and any obligation on the part of the manufacturer.

nditions or environments. U

ES100-167-PFUW Clamp on Type Flow Sensor

“

Specifications

Product Name: PFUW Series Clamp-on Type Flow Sensor
IP Rating: IP65, IP67
Flow Rate Range: 0 to 100 L/min
Applicable Fluids: General liquids, Beverage, Oil, Antifreeze,
Chemical liquids, Water, High-pressure fluids
Port Sizes: Nominal A – 15A, Nominal B – 1/2; Nominal A – 20A,
Nominal B – 3/4
Color Display: Yes, 2-screen display supported
Screen Size: 1.44 inch
Resolution/Color: 128 x 128/RGB

Product Usage Instructions

Mounting Instructions

Wrap the bands around the pipe.
Secure the screws to mount the sensor.
No sensor inside piping is required for installation.

Flow Sensor Placement

The sensor can be easily mounted to piping with only 2 bands and
2 screws. It can also be retrofitted to existing piping at any
position with two simple steps.

Compatible Piping Types

The flow sensor is compatible with screw-in piping (PF3W711) and
clamp-on type piping (PFUW711).

Color Display Features

The color display supports a 2-screen display for checking
instantaneous flow rate, set value, accumulated flow rate, and more
at a glance.

Ultrasonic Reception Strength Display

The ultrasonic reception strength display allows you to confirm
the product mounting status by checking the ultrasonic detection
level.

FAQ

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

A: The compatible fluids include general liquids, beverage, oil,
antifreeze, chemical liquids, water, and high-pressure fluids.

Q: Does the flow sensor require any piping work for
installation?

A: No, the PFUW Series Clamp-on Type Flow Sensor does not
require any piping work. It can be easily mounted with bands and
screws.

“`

View Fullscreen

For liquids
Clamp-on Type Flow Sensor

IP65 IP67

Benefit from the eight
“zeros” with clamp
mounting!

“Easy mounting and retrofitting” Reduced installation work

PFUW Series

CAT.ES100-167A

For liquids Clamp-on Type Flow Sensor PFUW Series

Benefit from the 8 “zeros” with clamp mounting!

No piping work required
·Zero piping work ·Zero leakage

Can be easily mounted to piping with only 2 bands and 2 screws!
Band

Can be retrofitted to existing piping at any position with two steps

Screw

Wrap the bands around any pipe.

Secure the screws.

·Rated flow rate range from zero L/min

Can detect when there is no fluid flowing in piping (0 L/min)

Applicable port size

Model

Nominal A Nominal B 0.5 5

Flow range [L/min] 40

PFUW760 15A

1/2″ 0

PFUW711 20A

3/4″ 0

100
100

For liquids Clamp-on Type Flow Sensor PFUW Series

Types of compatible piping

Flow rate 60 L type 100 L type

Port size Nominal A 15A 20A

Nominal B 1/2″ 3/4″

Applicable fluids

General liquids

Beverage

Oil

Antifreeze

Chemical liquids

Water

High-pressure fluids

Can be mounted in close proximity (Reduced installation space)

Screw-in piping PF3W711

Clamp-on type PFUW711

Tool interference when mounting the screw-in type
312 mm

Space saving
168 mm
(54%)
shorter

144 mm

Example For use in combination with manifolds for water

Supply type PF3WS

PF3WS

Supply

Cooling area Cooling area Cooling area

PFUW Return

Chiller unit

Cooling tower

For liquids Clamp-on Type Flow Sensor PFUW Series

Color display/2-screen display supported

For the confirmation of the instantaneous flow rate, set value, and accumulated flow rate at a glance

Main screen
Instantaneous flow rate
Sub screen
Set value, accumulated flow rate, etc.

Size
1.44 inch

Resolution/Color
128 x 128/RGB

Improved visibility and operability

OUT

90°

OUT

90°

The display screen can be rotated in 90° increments.

90° OUT IN

IN 90° OUT

The color display allows for improved visibility. And the 2-screen display allows you to check the status at a glance.

Instantaneous flow rate value

Main screen
Instantaneous flow rate value
Sub screen
Set value IO-Link status Accumulated flow rate value Peak/bottom
value Line name

Blue background with white characters

Red background with white characters

Black background with Black background with Black background with

green characters

red characters

white characters

Set value

IO-Link status

Accumulated flow rate value

Peak/bottom value

Line name

Ultrasonic reception strength display: Ultrasonic indicator

Icon

Ultrasonic detection level

Description

Note

Level 0

Detection is disabled.

Level 1

Low stability

Check the piping condition and product mounting status. Depending on the piping condition, changing the piping mounting position may improve the ultrasonic detection level.

Level 2

Medium stability

Recommended value Stable measurement is possible.

Level 3

High stability

Recommended value Stable measurement is possible.

Level 4

Excessive The ultrasonic detection level is too high. Flow measurement may become unstable. ultrasonic detection Change the ultrasonic transmission level (F11 Power) to “Low.”

For liquids Clamp-on Type Flow Sensor PFUW Series

Applications
For the cooling of processing machines (casting machines)

For the beverage management of filler machines

For drainage management

For the cooling of welding guns

For the cooling of PET bottle molding machines

For coolant management

Applicable fluids General liquids: Beverage, Oil, Antifreeze, Chemical liquids, Water, High-pressure fluids 4

For liquids Clamp-on Type Flow Sensor PFUW Series

IO-Link Compatible PFUW7– Supports the IO-Link communication protocol

PLC
Fieldbus

Configuration File (IODD File1) · Manufacturer · Product part no. · Set value

1 IODD File

IODD is an abbreviation of IO Device

Description. This file is necessary for setting

the device and connecting it to a master. Save

the IODD file on the PC to be used to set the

device prior to use.

p. 7
IO-Link is an open communication interface technology between the sensor/ actuator and the I/O terminal that is an international standard, IEC 61131-9.

Device settings can be set by the master.
· Threshold value · Operation mode,
etc. · Flow rate
command value

Read the device data.
· Switch ON/OFF signal and analog value · Device information:
Manufacturer, Product part number, Serial number, etc. · Normal or abnormal device status · Cable breakage

IO-Link Master

IO-Link Compatible Device: Digital Flow Switch

For the confirmation of the status via the input process data

Input Process Data

Bit offset 63

Item

Accumulated measurement value, upper (PD)

Bit offset 47

Item

Accumulated measurement value, lower (PD)

Bit offset 31

Item

Flow rate measurement value (PD)

Bit offset Item

15
System error

14 Error

Fixed Ultrasonic output error

Reservation

Flow rate Accumulation Flow rate diagnosis diagnosis unit

Ultrasonic intensity

Instantaneous Instantaneous Accumulated Accumulated

Bit offset 0
1 2 3 4 to 6 7 8 9 12 13 14 15 16 to 31
32 to 47
48 to 63

Item

Note

Accumulated OUT1 output

0: Less than the set value 1: Greater than the set value

Accumulated OUT2 output

0: Less than the set value 1: Greater than the set value

Instantaneous OUT1 output

0: OFF 1: ON

Instantaneous OUT2 output

0: OFF 1: ON

Ultrasonic intensity indicator

0 to 4

Flow rate unit

0: L/min 1: gal/min

Diagnosis (Accumulated flow rate) 0: Within range 1: Out of range

Diagnosis (Instantaneous flow rate) 0: Within range 1: Out of range

Ultrasonic measurement error

0: No error 1: error

Fixed output

0: OFF 1: ON

Error (Other than system error)

0: OFF 1: ON

Error (System error)

0: OFF 1: ON

Instantaneous flow rate measurement value
Accumulated flow rate measurement value (lower)
Accumulated flow rate measurement value (upper)

Signed 16 bit Unsigned 32 bit Unsigned 32 bit

Diagnosis items
· Over current error · Outside of rated flow range/accumulated flow range · Internal product malfunction · Outside of zero-clear range

Communication IO-Link with master communication status
Yes

Status Operate
Normal Start up Preoperate

Screen display

Description
Normal communication
status
At the start of communication

IO-Link mode

Version does not match

The IO-Link version does not match that of the master.

Abnormal

Normal

Communication disconnection

communication was not
received for 1 s or longer.

OFF

SIO mode

General switch output

If the version of the connected IO-Link master is something other than “V1.1,” the display will show an error.

For liquids Clamp-on Type Flow Sensor
PFUW Series IP65 IP67

How to Order
PFUW7 60 L1 M

Symbol Rated flow range

0 to 60 L/min

0 to 100 L/min

Rated flow range

Applicable port size

Nominal A Nominal B

15A

1/2″

20A

3/4″

Output specification

Symbol L1 L2
L3

OUT1 IO-Link/NPN/PNP IO-Link/NPN/PNP
IO-Link/NPN/PNP

OUT2 —
NPN/PNP/External input
Analog output (1 to 5 V 0 to 10 V)1

IO-Link/NPN/PNP

Analog output (4 to 20 mA)

1 1 to 5 V or 0 to 10 V can be selected by pressing the button. The default setting is 1 to 5 V.

Calibration certificate5

Symbol Calibration certificate

Nil

—

5 The certificate is in both English and Japanese.

Unit specification

Symbol Nil M

Description Units selection function3
SI unit only4

Option

Symbol Nil N Q

Description With lead wire with M12 connector (3 m)
Without lead wire with M12 connector With lead wire with M12-M12 connector (3 m)2

2 One side has an M12 (socket), and the other side has an M12 (plug) lead wire with a connector.

Options/Part Nos. When only optional parts are required, order with the part numbers listed below.

Part no.

Option

Note

ZS-37-A

Lead wire with M12 connector

Length: 3 m

ZS-49-A

Lead wire with M12-M12 connector Male/female conversion, Length: 3 m

ZS-57-60LR Clamp assembly set 60

Left/right mounting bracket set (for the 60 L range)

ZS-57-11LR Clamp assembly set 100

Left/right mounting bracket set (for the 100 L range)

ZS-57-A

Rubber sheet

Replacement parts

Rubber sheet

PFUW For liquids Clamp-on Type Flow Sensor

Series

Specifications

For flow switch precautions and specific product precautions, refer to the “Operation Manual” on the SMC website.

Piping Fluid
Flow
Accuracy5 Analog output6 External input8

Model Applicable piping material1

PFUW760

PFUW711

Metal piping, Hard resin piping

Piping A type
diameter B type Applicable fluid2

15A

20A

1/2B

3/4B

General liquids (Water, Oil, Chemical liquids, etc.)

Fluid temperature range

0 to 90°C (No freezing or condensation)

Detection method Ultrasonic method (Propagation time difference method)

Rated flow range

0 to 60 L/min

0 to 100 L/min

(Flow under 0.6 L/min is (Flow under 1.0 L/min is displayed as 0.0 L/min)3 displayed as 0.0 L/min)3

Display/Set Instantaneous flow rate flow rate range Accumulated flow

-3 to 84 L/min

-5 to 140 L/min

0 to 999,999,999 L

Display/Minimum Instantaneous flow rate setting unit Accumulated flow

0.1 L/min 1 L

Zero cut-off range 0 to ±10% F.S. (Select per 1% F.S. for the maximum rated flow rate.)

Accumulated volume per pulse (Pulse width = 50 msec.)
Accumulated value hold function

1 L/pulse Interval of 2 or 5 minutes can be selected.4

Flow rate accuracy

±3.0% F.S.

Analog output accuracy

±3.0% F.S.

Repeatability

±2.0% F.S.

Temperature characteristics Output type

±5.0% F.S. (25°C standard) Voltage output: Select from 1 to 5 V or 0 to 10 V7,
Current output: 4 to 20 mA

Impedance

Voltage output Current output

Output impedance: Approx. 1 k Max. load impedance: 600 at power supply voltage of 24 V

Input type

Input voltage: NPN setting: 0.4 V or less (Reed or Solid state) PNP setting DC (+) -1 V or more

Input mode

Select from accumulated value external reset, peak/ bottom reset, or zero-clear.

Input time

30 ms or more

Output type

Select from NPN or PNP open collector.

Output mode

Select from hysteresis, window comparator, accumulated output, accumulated pulse output, error
output, or switch output OFF modes.

Switch output

Switch operation Max. load current

Select from normal output or reversed output. 80 mA

Max. applied voltage (NPN only)

30 VDC

Internal voltage drop (Residual voltage)

1.5 V or less (at load current of 80 mA)

Delay time9

5 ms or less, variable from 0 to 60 s/0.01 s increments

Hysteresis10

Variable from 0

Protection

Switch output power supply polarity protection, over current protection

Power supply voltage

18 to 30 VDC

Electrical

Current consumption

85 mA or less

Protection

Power supply polarity protection

Display mode

Main screen: Instantaneous flow rate display Sub screen: Select from set flow rate display, accumulated flow rate display, etc.

Display

Unit11

Instantaneous flow Accumulated flow

L/min, gal/min L, gal

Display Digital filter12

Display method: LCD, Display color: White/Orange/ Red/Green/Blue, 90/180/270° rotatable,
Display values updated 10 times per second
Select from 0.5, 1.0, 2.5, 5, 10, 30, or 60 s.

Enclosure

IP65/IP67

Withstand voltage

250 VAC for 1 min between terminals and housing

Environmental Insulation resistance 2 M or more between terminals and housing (with 50 VDC)

resistance

Operating

Operating: 0 to 50°C, Stored: -10 to 60°C (No freezing

temperature range

or condensation)

Operating humidity range Operating/Stored: 35 to 85% R.H. (No condensation)

Standards

CE/UKCA marking

Material

Detection part: Special rubber, Mounting bracket: Stainless steel 304

Weight

Body: 165 g, Mounting bracket: 46 g (PFUW760), 45 g (PFUW711) Lead wire with connector: +90 g

PFUW Series

Specifications

Communication Specifications (IO-Link mode)

IO-Link type IO-Link version Communication speed Configuration file Minimum cycle time Process data length On request data communication Data storage function Event function Vendor ID

Device V1.1
COM2 (38.4 kbps) IODD file1 4.5 ms
Input data: 8 bytes, Output data: 0 bytes Available Available Available
131 (0 x 0083)

Device ID2

1 The configuration file can be downloaded from the SMC website. 2 The device ID differs according to each product type.

Flow Range

Model PFUW760 PFUW711

-5

-3

-3 L/min -3 L/min

-5 L/min -5 L/min

0 0 L/min
0 L/min

Flow range [L/min] 60 60 L/min

84
84 L/min 84 L/min

Rated flow range

100 100 L/min
Set point range

140
140 L/min 140 L/min
Display range

Flow Rate / Analog Output

Voltage output (1 to 5 V)1 Current output1

A 1 V 4 mA

B 5 V 20 mA

Voltage output (0 to 10 V)1, 3

0 L/min 0 V

C 10 V

Model
PFUW760 PFUW711

Min. value of the Max. value of the rated flow range rated flow range

0 L/min

60 L/min

0 L/min

100 L/min

Output Output

C B

Max. value of the Flow

rated flow range rate

PFUW For liquids Clamp-on Type Flow Sensor

Series

Flow Rate Measurement Method

Ultrasonic sensor 1 (Upstream)

Ultrasonic sensor 2 (Downstream)

Piping

Flow

: Ultrasonic propagation path : Forward direction : Reverse direction

OUT

PFUW Series

Dimensions

Detection unit dimensions 0.6

93.4

74.5

(40.5)

1.5

30.8

38.5

1.5

Dimensions with mounting brackets included
(96.4)

(38)

For (60 L)

(40.5)

1.5

(24.4)

(37.4)

(45.1)

For (100 L)

(41.5) 24.4

4 10.2

Clamp assembly (ZS-57-60LR)
38
Clamp assembly (ZS-57-11LR)
38

4 10.2

(47) 23.4

(23.4)

(36.4)

(44.1)

PFUW For liquids Clamp-on Type Flow Sensor

Series

Dimensions

ZS-37-A
Lead wire with M12 connector

38.5

1: Brown

2: White

3000 45

ø15

1 4
4: Black
M12

2 3
3: Blue

Pin no. 1 2 3 4

Pin name DC(+) OUT2 DC(-) OUT1

Wire color Brown White Blue Black

4-wire type lead wire with M12 connector used for the PFUW series

Cable Specifications
Conductor Nominal cross section O.D.
Insulator Color

Sheath

Finished O.D.

AWG23 Approx. 1.1 mm
Brown, Blue, Black, White
ø4

ZS-49-A

Lead wire with M12-M12 connector

M12 4-pin female connector

No. 1

No. 2 (Straight)

ø15

No. 4

No. 3

38.5

M12 4-pin female connector
pin numbers

ø4

3000

M12 4-pin male connector (Straight)
42.5

ø15

No. 4

No. 3

No. 1

No. 2

M12 4-pin male connector
pin numbers

M12 (Female) M12 (Male)

L+

N.C. or other

L-

C/Q

Wiring diagram

For wiring, refer to the “Operation Manual” on the SMC website.

Safety Instructions

Caution: Caution indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.

Warning

Caution

ES100-167-PFUW Clamp on Type Flow Sensor

“

Specifications

Product Name: PFUW Series Clamp-on Type Flow Sensor
IP Rating: IP65, IP67
Flow Rate Range: 0 to 100 L/min
Applicable Fluids: General liquids, Beverage, Oil, Antifreeze,
Chemical liquids, Water, High-pressure fluids
Port Sizes: Nominal A – 15A, Nominal B – 1/2; Nominal A – 20A,
Nominal B – 3/4
Color Display: Yes, 2-screen display supported
Screen Size: 1.44 inch
Resolution/Color: 128 x 128/RGB

Product Usage Instructions

Mounting Instructions

Wrap the bands around the pipe.
Secure the screws to mount the sensor.
No sensor inside piping is required for installation.

Flow Sensor Placement

The sensor can be easily mounted to piping with only 2 bands and
2 screws. It can also be retrofitted to existing piping at any
position with two simple steps.

Compatible Piping Types

The flow sensor is compatible with screw-in piping (PF3W711) and
clamp-on type piping (PFUW711).

Color Display Features

The color display supports a 2-screen display for checking
instantaneous flow rate, set value, accumulated flow rate, and more
at a glance.

Ultrasonic Reception Strength Display

The ultrasonic reception strength display allows you to confirm
the product mounting status by checking the ultrasonic detection
level.

FAQ

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

A: The compatible fluids include general liquids, beverage, oil,
antifreeze, chemical liquids, water, and high-pressure fluids.

Q: Does the flow sensor require any piping work for
installation?

A: No, the PFUW Series Clamp-on Type Flow Sensor does not
require any piping work. It can be easily mounted with bands and
screws.

“`

View Fullscreen

For liquids
Clamp-on Type Flow Sensor

IP65 IP67

Benefit from the eight
“zeros” with clamp
mounting!

“Easy mounting and retrofitting” Reduced installation work

PFUW Series

CAT.ES100-167A

For liquids Clamp-on Type Flow Sensor PFUW Series

Benefit from the 8 “zeros” with clamp mounting!

No piping work required
·Zero piping work ·Zero leakage

Can be easily mounted to piping with only 2 bands and 2 screws!
Band

Can be retrofitted to existing piping at any position with two steps

Screw

Wrap the bands around any pipe.

Secure the screws.

·Rated flow rate range from zero L/min

Can detect when there is no fluid flowing in piping (0 L/min)

Applicable port size

Model

Nominal A Nominal B 0.5 5

Flow range [L/min] 40

PFUW760 15A

1/2″ 0

PFUW711 20A

3/4″ 0

100
100

For liquids Clamp-on Type Flow Sensor PFUW Series

Types of compatible piping

Flow rate 60 L type 100 L type

Port size Nominal A 15A 20A

Nominal B 1/2″ 3/4″

Applicable fluids

General liquids

Beverage

Oil

Antifreeze

Chemical liquids

Water

High-pressure fluids

Can be mounted in close proximity (Reduced installation space)

Screw-in piping PF3W711

Clamp-on type PFUW711

Tool interference when mounting the screw-in type
312 mm

Space saving
168 mm
(54%)
shorter

144 mm

Example For use in combination with manifolds for water

Supply type PF3WS

PF3WS

Supply

Cooling area Cooling area Cooling area

PFUW Return

Chiller unit

Cooling tower

For liquids Clamp-on Type Flow Sensor PFUW Series

Color display/2-screen display supported

For the confirmation of the instantaneous flow rate, set value, and accumulated flow rate at a glance

Main screen
Instantaneous flow rate
Sub screen
Set value, accumulated flow rate, etc.

Size
1.44 inch

Resolution/Color
128 x 128/RGB

Improved visibility and operability

OUT

90°

OUT

90°

The display screen can be rotated in 90° increments.

90° OUT IN

IN 90° OUT

The color display allows for improved visibility. And the 2-screen display allows you to check the status at a glance.

Instantaneous flow rate value

Main screen
Instantaneous flow rate value
Sub screen
Set value IO-Link status Accumulated flow rate value Peak/bottom
value Line name

Blue background with white characters

Red background with white characters

Black background with Black background with Black background with

green characters

red characters

white characters

Set value

IO-Link status

Accumulated flow rate value

Peak/bottom value

Line name

Ultrasonic reception strength display: Ultrasonic indicator

Icon

Ultrasonic detection level

Description

Note

Level 0

Detection is disabled.

Level 1

Low stability

Check the piping condition and product mounting status. Depending on the piping condition, changing the piping mounting position may improve the ultrasonic detection level.

Level 2

Medium stability

Recommended value Stable measurement is possible.

Level 3

High stability

Recommended value Stable measurement is possible.

Level 4

Excessive The ultrasonic detection level is too high. Flow measurement may become unstable. ultrasonic detection Change the ultrasonic transmission level (F11 Power) to “Low.”

For liquids Clamp-on Type Flow Sensor PFUW Series

Applications
For the cooling of processing machines (casting machines)

For the beverage management of filler machines

For drainage management

For the cooling of welding guns

For the cooling of PET bottle molding machines

For coolant management

Applicable fluids General liquids: Beverage, Oil, Antifreeze, Chemical liquids, Water, High-pressure fluids 4

For liquids Clamp-on Type Flow Sensor PFUW Series

IO-Link Compatible PFUW7– Supports the IO-Link communication protocol

PLC
Fieldbus

Configuration File (IODD File1) · Manufacturer · Product part no. · Set value

1 IODD File

IODD is an abbreviation of IO Device

Description. This file is necessary for setting

the device and connecting it to a master. Save

the IODD file on the PC to be used to set the

device prior to use.

p. 7
IO-Link is an open communication interface technology between the sensor/ actuator and the I/O terminal that is an international standard, IEC 61131-9.

Device settings can be set by the master.
· Threshold value · Operation mode,
etc. · Flow rate
command value

Read the device data.
· Switch ON/OFF signal and analog value · Device information:
Manufacturer, Product part number, Serial number, etc. · Normal or abnormal device status · Cable breakage

IO-Link Master

IO-Link Compatible Device: Digital Flow Switch

For the confirmation of the status via the input process data

Input Process Data

Bit offset 63

Item

Accumulated measurement value, upper (PD)

Bit offset 47

Item

Accumulated measurement value, lower (PD)

Bit offset 31

Item

Flow rate measurement value (PD)

Bit offset Item

15
System error

14 Error

Fixed Ultrasonic output error

Reservation

Flow rate Accumulation Flow rate diagnosis diagnosis unit

Ultrasonic intensity

Instantaneous Instantaneous Accumulated Accumulated

Bit offset 0
1 2 3 4 to 6 7 8 9 12 13 14 15 16 to 31
32 to 47
48 to 63

Item

Note

Accumulated OUT1 output

0: Less than the set value 1: Greater than the set value

Accumulated OUT2 output

0: Less than the set value 1: Greater than the set value

Instantaneous OUT1 output

0: OFF 1: ON

Instantaneous OUT2 output

0: OFF 1: ON

Ultrasonic intensity indicator

0 to 4

Flow rate unit

0: L/min 1: gal/min

Diagnosis (Accumulated flow rate) 0: Within range 1: Out of range

Diagnosis (Instantaneous flow rate) 0: Within range 1: Out of range

Ultrasonic measurement error

0: No error 1: error

Fixed output

0: OFF 1: ON

Error (Other than system error)

0: OFF 1: ON

Error (System error)

0: OFF 1: ON

Instantaneous flow rate measurement value
Accumulated flow rate measurement value (lower)
Accumulated flow rate measurement value (upper)

Signed 16 bit Unsigned 32 bit Unsigned 32 bit

Diagnosis items
· Over current error · Outside of rated flow range/accumulated flow range · Internal product malfunction · Outside of zero-clear range

Communication IO-Link with master communication status
Yes

Status Operate
Normal Start up Preoperate

Screen display

Description
Normal communication
status
At the start of communication

IO-Link mode

Version does not match

The IO-Link version does not match that of the master.

Abnormal

Normal

Communication disconnection

communication was not
received for 1 s or longer.

OFF

SIO mode

General switch output

If the version of the connected IO-Link master is something other than “V1.1,” the display will show an error.

For liquids Clamp-on Type Flow Sensor
PFUW Series IP65 IP67

How to Order
PFUW7 60 L1 M

Symbol Rated flow range

0 to 60 L/min

0 to 100 L/min

Rated flow range

Applicable port size

Nominal A Nominal B

15A

1/2″

20A

3/4″

Output specification

Symbol L1 L2
L3

OUT1 IO-Link/NPN/PNP IO-Link/NPN/PNP
IO-Link/NPN/PNP

OUT2 —
NPN/PNP/External input
Analog output (1 to 5 V 0 to 10 V)1

IO-Link/NPN/PNP

Analog output (4 to 20 mA)

1 1 to 5 V or 0 to 10 V can be selected by pressing the button. The default setting is 1 to 5 V.

Calibration certificate5

Symbol Calibration certificate

Nil

—

5 The certificate is in both English and Japanese.

Unit specification

Symbol Nil M

Description Units selection function3
SI unit only4

Option

Symbol Nil N Q

Description With lead wire with M12 connector (3 m)
Without lead wire with M12 connector With lead wire with M12-M12 connector (3 m)2

2 One side has an M12 (socket), and the other side has an M12 (plug) lead wire with a connector.

Options/Part Nos. When only optional parts are required, order with the part numbers listed below.

Part no.

Option

Note

ZS-37-A

Lead wire with M12 connector

Length: 3 m

ZS-49-A

Lead wire with M12-M12 connector Male/female conversion, Length: 3 m

ZS-57-60LR Clamp assembly set 60

Left/right mounting bracket set (for the 60 L range)

ZS-57-11LR Clamp assembly set 100

Left/right mounting bracket set (for the 100 L range)

ZS-57-A

Rubber sheet

Replacement parts

Rubber sheet

PFUW For liquids Clamp-on Type Flow Sensor

Series

Specifications

For flow switch precautions and specific product precautions, refer to the “Operation Manual” on the SMC website.

Piping Fluid
Flow
Accuracy5 Analog output6 External input8

Model Applicable piping material1

PFUW760

PFUW711

Metal piping, Hard resin piping

Piping A type
diameter B type Applicable fluid2

15A

20A

1/2B

3/4B

General liquids (Water, Oil, Chemical liquids, etc.)

Fluid temperature range

0 to 90°C (No freezing or condensation)

Detection method Ultrasonic method (Propagation time difference method)

Rated flow range

0 to 60 L/min

0 to 100 L/min

(Flow under 0.6 L/min is (Flow under 1.0 L/min is displayed as 0.0 L/min)3 displayed as 0.0 L/min)3

Display/Set Instantaneous flow rate flow rate range Accumulated flow

-3 to 84 L/min

-5 to 140 L/min

0 to 999,999,999 L

Display/Minimum Instantaneous flow rate setting unit Accumulated flow

0.1 L/min 1 L

Zero cut-off range 0 to ±10% F.S. (Select per 1% F.S. for the maximum rated flow rate.)

Accumulated volume per pulse (Pulse width = 50 msec.)
Accumulated value hold function

1 L/pulse Interval of 2 or 5 minutes can be selected.4

Flow rate accuracy

±3.0% F.S.

Analog output accuracy

±3.0% F.S.

Repeatability

±2.0% F.S.

Temperature characteristics Output type

±5.0% F.S. (25°C standard) Voltage output: Select from 1 to 5 V or 0 to 10 V7,
Current output: 4 to 20 mA

Impedance

Voltage output Current output

Output impedance: Approx. 1 k Max. load impedance: 600 at power supply voltage of 24 V

Input type

Input voltage: NPN setting: 0.4 V or less (Reed or Solid state) PNP setting DC (+) -1 V or more

Input mode

Select from accumulated value external reset, peak/ bottom reset, or zero-clear.

Input time

30 ms or more

Output type

Select from NPN or PNP open collector.

Output mode

Select from hysteresis, window comparator, accumulated output, accumulated pulse output, error
output, or switch output OFF modes.

Switch output

Switch operation Max. load current

Select from normal output or reversed output. 80 mA

Max. applied voltage (NPN only)

30 VDC

Internal voltage drop (Residual voltage)

1.5 V or less (at load current of 80 mA)

Delay time9

5 ms or less, variable from 0 to 60 s/0.01 s increments

Hysteresis10

Variable from 0

Protection

Switch output power supply polarity protection, over current protection

Power supply voltage

18 to 30 VDC

Electrical

Current consumption

85 mA or less

Protection

Power supply polarity protection

Display mode

Main screen: Instantaneous flow rate display Sub screen: Select from set flow rate display, accumulated flow rate display, etc.

Display

Unit11

Instantaneous flow Accumulated flow

L/min, gal/min L, gal

Display Digital filter12

Display method: LCD, Display color: White/Orange/ Red/Green/Blue, 90/180/270° rotatable,
Display values updated 10 times per second
Select from 0.5, 1.0, 2.5, 5, 10, 30, or 60 s.

Enclosure

IP65/IP67

Withstand voltage

250 VAC for 1 min between terminals and housing

Environmental Insulation resistance 2 M or more between terminals and housing (with 50 VDC)

resistance

Operating

Operating: 0 to 50°C, Stored: -10 to 60°C (No freezing

temperature range

or condensation)

Operating humidity range Operating/Stored: 35 to 85% R.H. (No condensation)

Standards

CE/UKCA marking

Material

Detection part: Special rubber, Mounting bracket: Stainless steel 304

Weight

Body: 165 g, Mounting bracket: 46 g (PFUW760), 45 g (PFUW711) Lead wire with connector: +90 g

PFUW Series

Specifications

Communication Specifications (IO-Link mode)

IO-Link type IO-Link version Communication speed Configuration file Minimum cycle time Process data length On request data communication Data storage function Event function Vendor ID

Device V1.1
COM2 (38.4 kbps) IODD file1 4.5 ms
Input data: 8 bytes, Output data: 0 bytes Available Available Available
131 (0 x 0083)

Device ID2

1 The configuration file can be downloaded from the SMC website. 2 The device ID differs according to each product type.

Flow Range

Model PFUW760 PFUW711

-5

-3

-3 L/min -3 L/min

-5 L/min -5 L/min

0 0 L/min
0 L/min

Flow range [L/min] 60 60 L/min

84
84 L/min 84 L/min

Rated flow range

100 100 L/min
Set point range

140
140 L/min 140 L/min
Display range

Flow Rate / Analog Output

Voltage output (1 to 5 V)1 Current output1

A 1 V 4 mA

B 5 V 20 mA

Voltage output (0 to 10 V)1, 3

0 L/min 0 V

C 10 V

Model
PFUW760 PFUW711

Min. value of the Max. value of the rated flow range rated flow range

0 L/min

60 L/min

0 L/min

100 L/min

Output Output

C B

Max. value of the Flow

rated flow range rate

PFUW For liquids Clamp-on Type Flow Sensor

Series

Flow Rate Measurement Method

Ultrasonic sensor 1 (Upstream)

Ultrasonic sensor 2 (Downstream)

Piping

Flow

: Ultrasonic propagation path : Forward direction : Reverse direction

OUT

PFUW Series

Dimensions

Detection unit dimensions 0.6

93.4

74.5

(40.5)

1.5

30.8

38.5

1.5

Dimensions with mounting brackets included
(96.4)

(38)

For (60 L)

(40.5)

1.5

(24.4)

(37.4)

(45.1)

For (100 L)

(41.5) 24.4

4 10.2

Clamp assembly (ZS-57-60LR)
38
Clamp assembly (ZS-57-11LR)
38

4 10.2

(47) 23.4

(23.4)

(36.4)

(44.1)

PFUW For liquids Clamp-on Type Flow Sensor

Series

Dimensions

ZS-37-A
Lead wire with M12 connector

38.5

1: Brown

2: White

3000 45

ø15

1 4
4: Black
M12

2 3
3: Blue

Pin no. 1 2 3 4

Pin name DC(+) OUT2 DC(-) OUT1

Wire color Brown White Blue Black

4-wire type lead wire with M12 connector used for the PFUW series

Cable Specifications
Conductor Nominal cross section O.D.
Insulator Color

Sheath

Finished O.D.

AWG23 Approx. 1.1 mm
Brown, Blue, Black, White
ø4

ZS-49-A

Lead wire with M12-M12 connector

M12 4-pin female connector

No. 1

No. 2 (Straight)

ø15

No. 4

No. 3

38.5

M12 4-pin female connector
pin numbers

ø4

3000

M12 4-pin male connector (Straight)
42.5

ø15

No. 4

No. 3

No. 1

No. 2

M12 4-pin male connector
pin numbers

M12 (Female) M12 (Male)

L+

N.C. or other

L-

C/Q

Wiring diagram

For wiring, refer to the “Operation Manual” on the SMC website.

Safety Instructions

Caution: Caution indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.

Warning

Caution

Safety Instructions Be sure to read the “Handling Precautions for SMC Products” (M-E03-3) and “Operation Manual” before use.

Specifications are subject to change without prior notice

D-G

and any obligation on the part of the manufacturer.

nditions or environments. Use under such conditions or environments is not allowed.
1. Conditions and environments outside of the given specifications, or use outdoors or in a place exposed to direct sunlight.
2. Use for nuclear power, railways, aviation, space equipment, ships, vehicles, military application, equipment affecting human life, body, and property, combustion equipment, entertainment equipment, emergency shut-off circuits, press clutches, brake circuits, safety equipment, etc., and use for applications that do not conform to standard specifications such as catalogs and operation manuals.
3. Use for interlock circuits, except for use with double interlock such as installing a mechanical protection function in case of failure. Please periodically inspect the product to confirm that the product is operating properly.

Safety Instructions Be sure to read the “Handling Precautions for SMC Products” (M-E03-3) and “Operation Manual” before use.

Specifications are subject to change without prior notice

D-G

and any obligation on the part of the manufacturer.

se under such conditions or environments is not allowed.
1. Conditions and environments outside of the given specifications, or use outdoors or in a place exposed to direct sunlight.
2. Use for nuclear power, railways, aviation, space equipment, ships, vehicles, military application, equipment affecting human life, body, and property, combustion equipment, entertainment equipment, emergency shut-off circuits, press clutches, brake circuits, safety equipment, etc., and use for applications that do not conform to standard specifications such as catalogs and operation manuals.
3. Use for interlock circuits, except for use with double interlock such as installing a mechanical protection function in case of failure. Please periodically inspect the product to confirm that the product is operating properly.

Safety Instructions Be sure to read the “Handling Precautions for SMC Products” (M-E03-3) and “Operation Manual” before use.

Specifications are subject to change without prior notice

D-G

and any obligation on the part of the manufacturer.

Safety Instructions Be sure to read the “Handling Precautions for SMC Products” (M-E03-3) and “Operation Manual” before use.

Specifications are subject to change without prior notice

D-G

and any obligation on the part of the manufacturer.

Safety Instructions Be sure to read the “Handling Precautions for SMC Products” (M-E03-3) and “Operation Manual” before use.

Specifications are subject to change without prior notice

D-G

and any obligation on the part of the manufacturer.

Documents / Resources

SMC ES100-167-PFUW Clamp on Type Flow Sensor [pdf] Owner's Manual
ES100-167-PFUW, ES100-167-PFUW Clamp on Type Flow Sensor, ES100-167-PFUW, Clamp on Type Flow Sensor, Type Flow Sensor, Flow Sensor, Sensor

References

User Manual

ES100-167-PFUW Clamp on Type Flow Sensor

Specifications

Product Usage Instructions

Mounting Instructions

Flow Sensor Placement

Compatible Piping Types

Color Display Features

Ultrasonic Reception Strength Display

FAQ

Q: What are the compatible fluids for the PFUW Series Flow Sensor?

Q: Does the flow sensor require any piping work for installation?

ES100-167-PFUW Clamp on Type Flow Sensor

Specifications

Product Usage Instructions

Mounting Instructions

Flow Sensor Placement

Compatible Piping Types

Color Display Features

Ultrasonic Reception Strength Display

FAQ

Q: What are the compatible fluids for the PFUW Series Flow Sensor?

Q: Does the flow sensor require any piping work for installation?

ES100-167-PFUW Clamp on Type Flow Sensor

Specifications

Product Usage Instructions

Mounting Instructions

Flow Sensor Placement

Compatible Piping Types

Color Display Features

Ultrasonic Reception Strength Display

FAQ

Q: What are the compatible fluids for the PFUW Series Flow Sensor?

Q: Does the flow sensor require any piping work for installation?

ES100-167-PFUW Clamp on Type Flow Sensor

Specifications

Product Usage Instructions

Mounting Instructions

Flow Sensor Placement

Compatible Piping Types

Color Display Features

Ultrasonic Reception Strength Display

FAQ

Q: What are the compatible fluids for the PFUW Series Flow Sensor?

Q: Does the flow sensor require any piping work for installation?

ES100-167-PFUW Clamp on Type Flow Sensor

Specifications

Product Usage Instructions

Mounting Instructions

Flow Sensor Placement

Compatible Piping Types

Color Display Features

Ultrasonic Reception Strength Display

FAQ

Q: What are the compatible fluids for the PFUW Series Flow Sensor?

Q: Does the flow sensor require any piping work for installation?

ES100-167-PFUW Clamp on Type Flow Sensor

Specifications

Product Usage Instructions

Mounting Instructions

Flow Sensor Placement

Compatible Piping Types

Color Display Features

Ultrasonic Reception Strength Display

FAQ

Q: What are the compatible fluids for the PFUW Series Flow Sensor?

Q: Does the flow sensor require any piping work for installation?

Documents / Resources

References

Related Posts

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Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

Q: Does the flow sensor require any piping work for
installation?

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

Q: Does the flow sensor require any piping work for
installation?

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

Q: Does the flow sensor require any piping work for
installation?

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

Q: Does the flow sensor require any piping work for
installation?

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

Q: Does the flow sensor require any piping work for
installation?

Q: What are the compatible fluids for the PFUW Series Flow
Sensor?

Q: Does the flow sensor require any piping work for
installation?