Instruction Manual for DELTA OHM models including: HD50CR-AS, Low Pressure Transmitter Data Logger, HD50CR-AS Low Pressure Transmitter Data Logger, Pressure Transmitter, Transmitter, Pressure Transmitter Data Logger, Data Logger

Manuale HD50CR-AS ENG REV 1 1

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Humidity, Pressure, Temperature HD50CR - Clean Room Logger Transmitter - Delta OHM

Operating manual HD50CR-AS English


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DeltaOHM HD50CR-AS manual ENG
English

Operating manual
Low pressure transmitter / data logger
HD50CR-AS

www.deltaohm.com
Keep for future reference.

TABLE OF CONTENTS
1 INTRODUCTION .................................................................................................... 3 2 DESCRIPTION ....................................................................................................... 4 3 INSTALLATION ..................................................................................................... 5
3.1 CONFIGURATION ................................................................................................. 6 4 ALARMS ................................................................................................................ 8 5 STATISTICAL FUNCTIONS................................................................................... 10 6 CALIBRATION ..................................................................................................... 11 7 MENU .................................................................................................................. 12 8 MODBUS ............................................................................................................. 17 9 TECHNICAL CHARACTERISTICS .......................................................................... 23 10 INSTRUMENT STORAGE ...................................................................................... 26 11 SAFETY INSTRUCTIONS ...................................................................................... 26 12 PROBES AND ACCESSORIES ORDERING CODES .................................................. 27

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1 INTRODUCTION
HD50CR-AS is a relative or differential low pressure transmitter and data logger designed for wall flush-mounting. Measuring range ±100 Pa.
A silicon piezoresistive sensor with high accuracy and temperature compensation is used, which allows excellent linearity, repeatability and stability over the time. The auto-zeroing feature allows stable measurements over the time without the need to recalibrate.
An input for an optional relative humidity and temperature combined probe is provided. The absolute humidity, the Dew Point and the wet bulb temperature can be calculated.
Three 0...5/10 V and 0/4...20 mA analog outputs and a digital RS485 output with "Slave" Modbus-RTU protocol for connecting the instrument to a network of sensors are available.
The electroluminescent display has an inattinic red protection. The front keyboard allows scrolling the real time measurements and configuring the instrument.
Equipped with a USB port with mini-USB connector for the connection to a PC.
For each detected quantity, two alarm thresholds can be set by the user. Exceeding a threshold is signaled acoustically, by means of the internal buzzer, and visually, by lighting the alarm LEDs on the front panel (only for the three measurements associated with the analog outputs). An alarm hysteresis and a delay in the generation of the alarm can be configured for each detected quantity.
The PC software HD35AP-S allows configuring the instrument, viewing the real time measurements, downloading and viewing the data into a database. The HD35APCFR21 software option allows the protection of recorded data and configuration in response to FDA 21 CFR part 11 recommendations.
Brushed stainless steel front panel.
The instrument is supplied factory calibrated.

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2 DESCRIPTION
Pressure inputs Terminal header

Inputs for pressure calibration

LEDs Display Keyboard

USB port with protective cap

Fixing holes

Input for optional T/RH probe

Buttons:

Scrolls the real time measurement on the display. In menu, increases the displayed value or move to the next parameter.

Displays the statistical functions (MIN, MAX, AVG). In menu, decreases the displayed value or move to the previous parameter.

Enters the menu. In menu, confirms the displayed value.

Cancel the operation or goes back to the previous level.

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3 INSTALLATION
Make a 196 x 70 mm cut in the wall, at least 46 mm deep, and 4 holes according to the drilling pattern shown below, then wall mount the instrument by using the 4 holes on the front panel.

The connections on the upper part of the housing are as follows:
RS485 port

Pressure input (+)

+

15 14 13

Pressure input (-)

GND

D

D

+
RS485 1 2 3 4 5 6 7 8 9 10 11 12

M
GND 0-5/10 V

¤
H¡¢£H OUT 1

M
GND 0-5/10 V

¤
H¡¢£H OUT 2

M

GND

¤
H¡¢£H OUT 3

0-5/10 V

+
NL
24 VACDC POWER

Analog output 1 Analog output 2 Analog output 3

Power supply 24 Vac (L=Line, N=Neutral) or 24 Vdc

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M
GND 0-5/10 V D D GND
M
GND 0-5/10 V D D GND

+

I

 
y¥¦ X §X¨©  
RL

V

5 012340
!" X #X$%& '& ()
+

+

+
NL
24 Vac/dc

-

-

Current analog output connection

Voltage analog output connection

Power supply connection

The three analog outputs are associated with the quantities of index CH1, CH2 and CH3 set in the F200 menu via the front keyboard of the instrument (see chapter 7) or via the HD35AP-S software.
The current analog output and the voltage analog output of the same channel (1, 2 or 3) are associated with the same quantity.
The RS485 connection is shown below.

Device 1
+
RS485

Device 2
+
RS485

vM AX 6 7899 M
Rt 220  Shield

D+ D-

D+ D-

RS485 connection

Shield

Rt 220 

Data Logger or PLC
D+ D-
GND

Connect any combined temperature and relative humidity probe to the 8-pole M12 connector on the bottom of the housing.

Pt100

2 3

8

1 7

456

RH

Pinout of the external side of the male M12 connector of the transmitter

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3.1 CONFIGURATION
The operating parameters of the instrument can be configured in various way: · Via front keyboard (see chapter 7). · Via the HD35AP-S application software, connecting the instrument to the PC via USB. · Via the Modbus-RTU protocol and the RS485 connection (see chapter 8).
The HD35AP-S application software is downloadable from Delta OHM website For the use of the application software, see the corresponding instructions.

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4 ALARMS
For each detected quantity, two alarm thresholds can be set by the user. The alarm is generated if the measured value falls below the lower threshold or rises above the upper threshold.
Exceeding a threshold is signaled: · acoustically, by means of the internal buzzer (if enabled); · visually, by lighting the alarm LEDs on the front panel (only for the three measurements associated with the analog outputs);
An alarm hysteresis and a delay in the generation of the alarm can be configured for each detected quantity.
The amplitude of the hysteresis is in percentage (0...100%) of the difference between the two alarm thresholds. For example, if the hysteresis is 2% (default value), the lower threshold is 10 °C and the upper threshold is 60 °C, the hysteresis in °C is equal to (6010)x2/100= 1 °C.

60 °C 59 °C

Upper threshold Hysteresis

11 °C 10 °C
OK

Alarm

OK

Alarm

OK

Hysteresis Lower threshold

The alarm is generated after the set delay time or immediately if the "no delay" option is selected (default). If the alarm condition disappears before the delay time has elapsed, the alarm is not generated.

60 °C 59 °C

Upper threshold Hysteresis

11 °C 10 °C

Delay

OK

Alarm

OK

Alarm

OK

Hysteresis Lower threshold

Enabling the Buzzer Latch option, the buzzer continues to sound even after the alarm condition has ceased.
In the event of an alarm in progress with the buzzer active, the buzzer can be silenced for a configurable time. Once the set time has elapsed, the buzzer will resume sounding

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or not depending on whether the alarm condition is still present or not. The following example shows the silencing of the buzzer with Latch option disabled.

60 °C 59 °C

Upper threshold Hysteresis

11 °C 10 °C
LED BUZZER

Delay

off

on

off

on

off

off

on off on off

on

off

Silencing

Silencing time elapsed

Hysteresis Lower threshold

The following example shows the silencing of the buzzer with Latch option enabled.

60 °C 59 °C

Upper threshold Hysteresis

11 °C 10 °C
LED BUZZER

Delay

off

on

off

on

off

off

on off on off on

Silencing

Silencing Silencing time elapsed

Hysteresis Lower threshold

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5 STATISTICAL FUNCTIONS
The instrument calculates and displays the maximum (MAX), minimum (MIN) and average (AVG) value of the detected measurements.
In order to display the statistical information, press FUNC/: the instrument shows the maximum value of the displayed quantity. To scroll the maximum values of the various quantities use the  key.
By pressing FUNC/ again, the instrument shows the minimum value of the displayed quantity. By pressing FUNC/ again, the instrument shows the average value of the displayed quantity.
By pressing FUNC/ once more, the instrument asks if the calculation of the statistical values is to be reset (FUNC CLR). Select YES or nO using / keys, then confirm with the MENU/ key.

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6 CALIBRATION
The instrument calibrates automatically at regular intervals (default 60 minutes, the interval is configurable) the zero of the differential pressure, temporarily disconnecting the pressure inputs through an internal solenoid valve.
Via the Fb00 menu (see chapter 7) it is possible to perform a manual calibration in one or two points. In order to perform manual calibration, it is necessary to unscrew the two front caps that cover the calibration inputs. To perform zero calibration (Fb05 in the menu), leave both inputs open. To perform calibration at non-zero values (gain calibration, Fb08 in the menu), connect the front inputs to a low differential pressure generator.

Calibration inputs
The differential pressure zero calibration is also possible via the Modbus Coil register with address 72 (see chapter 8).
At the end of the calibration or verification, firmly screw the front caps so that the seal is tight and the inputs are not affected by the external pressure.
Via the Fb00 menu it is also possible to calibrate the relative humidity sensor of the combined temperature and relative humidity probe at points 33% RH and 75% RH.
Warning: the optional combined relative humidity and temperature probe must be calibrated in line with the instrument. If the probe is ordered with the instrument, the probe is already factory calibrated. If the probe is ordered later, the calibration must be performed by the user via the Fb00 menu.

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7 MENU
The menu accessible via the front keyboard allows displaying the instrument information and changing operating parameters. The menu is structured in levels, with main categories and submenus.
To access the menu, you need to enter the user password (configurable through the appropriate menu item) or the administrator password (supplied with the instrument and not editable). Entering the user password makes some settings not changeable.
The instrument exits automatically the menu if no key is pressed for 3 minutes. After exiting the menu, the password remains active for a few minutes, during which you may enter the menu again without re-entering the password. It is possible to exit the menu by disabling immediately the password by performing a password level reset in the Password menu.
To access a menu parameter, proceed as follows:
1. Press MENU, the first digit of the password will blink.
2. Using / keys, set the first digit and confirm (MENU/ key), the second digit of the password will blink. Set the remaining digits in the same way.
3. Using / keys, select a main category in the menu and confirm (MENU/ key).
4. If the selected main category has a submenu, select the desired item using / keys and confirm (MENU/ key).
5. Using / keys, select the desired parameter: the parameter current setting is displayed.
6. To change the selected parameter, if allowed, press MENU/, the parameter setting blinks. Use / keys to change the setting, then confirm (MENU/ key). You can fast forward by keeping  or  key depressed.
To exit the main menu or a sub menu, press ESC key.
If it is not allowed to change a parameter, the notice N/A (Not Available) will appear when trying to change it.
Menu main category
F100 (DEV INFO): instrument general information F200 (MEAS MENU): selection of the quantities to be detected F300 (DISP LOOP VIEW): selection of the quantities to be displayed cyclically F400 (ALRM MENU): setting of the alarms F500 (UNIT MEAS MENU): units of measurement F600 (LOG MENU): logging settings F700 (AN OUT MENU): setting of the analog outputs F800 (MODBUS MENU): Modbus settings F900 (CLK MENU): clock settings FA00 (PSW MENU): password settings Fb00 (CAL MENU): calibration settings

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F100 submenu (DEV INFO)
Instrument general information.
F101: model F102: serial number F103: user code F104: group name F105: firmware version F106: firmware date F107: factory calibration date F108: user calibration date F109: type of calibration in use (factory or user) F110: external probe serial number
F200 submenu (MEAS MENU)
Selection and sorting of the quantities to be detected.
F201: temperature measurement index {CH1...CH6, default=CH2} F202: relative humidity measurement index {CH1...CH6, default=CH3} F203: Dew Point measurement index {CH1...CH6, default=CH4} F204: Absolute humidity measurement index {CH1...CH6, default=CH5} F205: Wet bulb temperature measurement index {CH1...CH6, default=CH6} F206: differential pressure measurement index {CH1...CH6, default=CH1}
Set a measurement to OFF to exclude it.
F300 submenu (DISP LOOP VIEW)
Selection of the quantities to be displayed cyclically. Note: in the F300 submenu, only the quantities to be detected appear, in the order set in the F200 submenu.
F301: quantity of index 1 {On/OFF, default=On} F302: quantity of index 2 {On/OFF, default=On} F303: quantity of index 3 {On/OFF, default=On} F304: quantity of index 4 {On/OFF, default=OFF} F305: quantity of index 5 {On/OFF, default=OFF} F306: quantity of index 6 {On/OFF, default=OFF}
F400 submenu (ALRM MENU)
Setting of the alarms. Note: in the F400 submenu, the quantities appear in the order set in the F200 submenu.
F408: period, in seconds, of the beep emitted by the buzzer {1...3600, default=2} F409: duration, in seconds, of the beep emitted by the buzzer {0.1...20, default=1.0} F410: alarm of the quantity of index 1
F411: lower alarm threshold F412: lower alarm threshold enabling {On/OFF, default=On}

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F413: upper alarm threshold F414: upper alarm threshold enabling {On/OFF, default=On} F415: alarm hysteresis in % of the difference between the two alarm thresholds
{0...100 %, default=2%} F416: delay time in signaling the alarm {max. 960 min, default=0} F417: buzzer enabling {On/OFF, default=OFF} F418: buzzer "Latch" function enabling {On/OFF, default=OFF} F419: buzzer silencing time, in minutes {0...1080, default=0} . . . F460: alarm of the quantity of index 6 F461: lower alarm threshold F462: lower alarm threshold enabling {On/OFF, default=On} F463: upper alarm threshold F464: upper alarm threshold enabling {On/OFF, default=On} F465: alarm hysteresis in % of the difference between the two alarm thresholds
{0...100 %, default=2%} F466: delay time in signaling the alarm {max. 960 min, default=0} F467: buzzer enabling {On/OFF, default=OFF} F468: buzzer "Latch" function enabling {On/OFF, default=OFF} F469: buzzer silencing time, in minutes {0...1080, default=0}
F500 submenu (UNIT MEAS MENU)
Units of measurement.
F501: temperature unit of measurement {°C/°F, default=°C} F502: differential pressure unit of measurement {hPa / kPa / atm / mmHg / mmH2O /
inHg / inH2O / (kgf /cm2) / PSI / mbar / bar / Pa, default=Pa}
F600 submenu (LOG MENU)
Logging settings.
F601: logging enabling/disabling {On/OFF, default=On} F602: choice between cyclical management (the new data overwrite the old ones when
the memory is full) or non-cyclical management (logging stops when the memory is full) of the instrument internal memory {YES=cyclical management / NO=non-cyclical management, default=YES} F603: logging interval (if it is higher than the measuring interval, the average of the measurements acquired during the interval will be stored) {default=30 s} F604: measurements acquisition interval {default=1 s}. If a value higher than the logging interval is set, the measurements will be detected with interval equal to the logging interval. F605: deletion of all stored measurements from the instrument memory {YES/nO}

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F700 submenu (AN OUT MENU)
Setting of the analog outputs.
F710: analog output 1 F711: 0-20 mA / 4-20 mA selection for the current output {default=4-20 mA} F712: 0-5 V / 0-10 V selection for the voltage output {default=0-10 V} F713: value of the quantity associated with the analog output corresponding to 0/4 mA and 0 V {default=-100 Pa} F714: value of the quantity associated with the analog output corresponding to 20 mA and 5/10 V {default=+100 Pa} F715: analog output test mode. The current output goes to the value entered. Set OFF to exit the test mode. F716: analog output test mode. The voltage output goes to the value entered. Set OFF to exit the test mode.
F720: analog output 2 F721: 0-20 mA / 4-20 mA selection for the current output {default=4-20 mA} F722: 0-5 V / 0-10 V selection for the voltage output {default=0-10 V} F723: value of the quantity associated with the analog output corresponding to 0/4 mA and 0 V {default=0.0 °C} F724: value of the quantity associated with the analog output corresponding to 20 mA and 5/10 V {default=100.0 °C} F725: analog output test mode. The current output goes to the value entered. Set OFF to exit the test mode. F726: analog output test mode. The voltage output goes to the value entered. Set OFF to exit the test mode.
F730: analog output 3 F731: 0-20 mA / 4-20 mA selection for the current output {default=4-20 mA} F732: 0-5 V / 0-10 V selection for the voltage output {default=0-10 V} F733: value of the quantity associated with the analog output corresponding to 0/4 mA and 0 V {default=0.0 %RH} F734: value of the quantity associated with the analog output corresponding to 20 mA and 5/10 V {default=100.0 %RH} F735: analog output test mode. The current output goes to the value entered. Set OFF to exit the test mode. F736: analog output test mode. The voltage output goes to the value entered. Set OFF to exit the test mode.

F800 submenu (MODBUS MENU)

Modbus settings.

F801: Modbus address {1...247, default=1}
F802: RS485 baud rate in kbps {9.6 / 19.2 / 38.4 / 57.6 / 115.2, default=19.2}
F803: RS485 communication mode {8N1 / 8N2 / 8E1 / 8E2 / 8O1 / 8O2, default=8E1}
F804: waiting of 3.5 characters after transmission with Modbus protocol {nO=violate protocol and go in receiving mode right after transmission / YES=respect protocol and wait 3.5 characters after transmission, default=nO}
F805: enabling of the password for changing the configuration via Modbus {On/OFF, default=OFF}

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F900 submenu (CLK MENU)
Clock settings.
F901: year F902: month F903: day F904: hour F905: minutes F906: enabling of the automatic synchronization of the internal clock with a reference
server {On/OFF, default=OFF} F907: time zone {default=0}
FA00 submenu (PSW MENU)
Password settings.
FA01: exits the menu and deactivates immediately the password {YES/nO}. The password will not remain active for some minutes as it normally happens when exiting the menu: you will need to re-enter the password even if you re-access immediately the menu.
FA02: setting of the user-level password {default=0000} FA03: locking of the instrument keyboard {YES/nO, default=nO}. If the keyboard is
locked, keep the MENU/ key pressed for 7 seconds to unlock it.
Fb00 submenu (CAL MENU)
Calibration settings.
Fb03: relative humidity sensor calibration at 75%RH Fb04: relative humidity sensor calibration at 33%RH Fb05: differential pressure calibration at zero Fb06: enabling of the differential pressure auto-calibration at zero {On/OFF, de-
fault=On} Fb07: interval, in minutes, of the differential pressure auto-calibration at zero {5...360,
default=60} Fb08: differential pressure second calibration point (in Pa) Fb09: reset of the differential pressure second calibration point Fb10: type of calibration used {FACT=factory / USEr=user, default=FACT}

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8 MODBUS

The device general information can be read through the function code 0x2B/0x0E:
· Manufacturer (Delta OHM) · Model · Firmware version
The complete list of MODBUS registers is shown below. If you try to read a register that is not present, the instrument returns the fixed value 32767. The list of the available registers can be downloaded in the PC using the function " Download the list of MODBUS registers of the device " included in the Settings sections of HD35AP-S software (see software instructions).
The following conventions have been used in the tables:
o Type: b = bit, B = 8 bits (Byte), W = 16 bits without sign (Word), SW = 16 bits with sign
o (x10) = decimal value expressed as an integer (e.g., if the content of the register is 184, the value is to be intended as 18,4).
o (x100) = centesimal value expressed as an integer (e.g., if the content of the register is 500, the value is to be intended as 5,00).

The commands for requesting units of measurement return an index according to the correspondence indicated in the table below:

Indexes of the units of measurement

Index
0 1 2 3 4 5 6 7 8 9 10 11 12

Unit of meas.
°C °F %UR g/m3 g/kg mbar bar Pa hPa kPa atm mmHg mmH2O

Index
13 14 15 16 17 18 19 20 21 22 23 24 25

Unit of meas. inchHg inchH2O kgf/cm2
PSI m/s km/h ft/s mph knot W/m2 µW/cm2 Wh/m2 kWh/m2

Index
26 27 28 29 30 31 32 33 34 35 36 37 38

Unit of meas.
J/m2 µJ/cm2
V mV mA ppm Hz % degrees lux m2/s g (*) mm

(*) Gravity acceleration

Index
39 40 41 42 43 44 45 46 47 48 49 50 51

Unit of meas.
inch counts mm/h inch/h counts/h mW/m2
m s µW/lumen dB dBA kWh l/s

Index
52 53 54 55 56 57 58 59 60

Unit of meas. l/min gallon/min m3/min m3/h µmol/(m2s) mm/day
kV A kA

255

Not

defined

Discrete Inputs - Read-only parameters

Address Type

Discrete Input description

7

b If 1, at least a quantity is in alarm.

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Coils - Read/Write parameters

Address Type

Coil description

Receiving mode after transmission with Modbus protocol:

0

b 0=violate protocol and go in receiving mode right after transmission

1=respect protocol and wait 3.5 characters after transmission

1

b Logging status: 0=active, 1=inactive

2

b Logging mode: 0=non cyclic, 1=cyclic

3

b Set 1 to delete the device logging memory. Bit zeroing is automatic.

Protection of configuration with password: 0=no, 1=yes

9

b Changing the parameter requires the Administrator password (see Holding

Register 10036).

23

b

Enabling of the lower alarm threshold for the quantity #1: 0= disabled, 1= enabled

24

b

Enabling of the lower alarm threshold for the quantity #2: 0= disabled, 1= enabled

25

b

Enabling of the lower alarm threshold for the quantity #3: 0= disabled, 1= enabled

26

b

Enabling of the lower alarm threshold for the quantity #4: 0= disabled, 1= enabled

27

b

Enabling of the lower alarm threshold for the quantity #5: 0= disabled, 1= enabled

28

b

Enabling of the lower alarm threshold for the quantity #6: 0= disabled, 1= enabled

35

b

Enabling of the upper alarm threshold for the quantity #1: 0= disabled, 1= enabled

36

b

Enabling of the upper alarm threshold for the quantity #2: 0= disabled, 1= enabled

37

b

Enabling of the upper alarm threshold for the quantity #3: 0= disabled, 1= enabled

38

b

Enabling of the upper alarm threshold for the quantity #4: 0= disabled, 1= enabled

39

b

Enabling of the upper alarm threshold for the quantity #5: 0= disabled, 1= enabled

40

b

Enabling of the upper alarm threshold for the quantity #6: 0= disabled, 1= enabled

47

b Enabling of the buzzer for the quantity #1: 0= disabled, 1=enabled

48

b Enabling of the buzzer for the quantity #2: 0= disabled, 1=enabled

49

b Enabling of the buzzer for the quantity #3: 0= disabled, 1=enabled

50

b Enabling of the buzzer for the quantity #4: 0= disabled, 1=enabled

51

b Enabling of the buzzer for the quantity #5: 0= disabled, 1=enabled

52

b Enabling of the buzzer for the quantity #6: 0= disabled, 1=enabled

59

b

Enabling of the buzzer "Latch" function for the quantity #1: 0= disabled, 1=enabled

60

b

Enabling of the buzzer "Latch" function for the quantity #2: 0= disabled, 1=enabled

61

b

Enabling of the buzzer "Latch" function for the quantity #3: 0= disabled, 1=enabled

62

b

Enabling of the buzzer "Latch" function for the quantity #4: 0= disabled, 1=enabled

63

b

Enabling of the buzzer "Latch" function for the quantity #5: 0= disabled, 1=enabled

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Address 64 71 72
73

Type b b b
b

Coil description
Enabling of the buzzer "Latch" function for the quantity #6: 0= disabled, 1=enabled Type of calibration used: 0=factory, 1=user Set 1 to carry out the zero calibration of the differential pressure. Bit zeroing is automatic. Enabling of the auto-calibration of the zero of the differential pressure: 0=disabled, 1=enabled

Input Registers - Read-only parameters

Address Type

Input Register description

Measured values and status of measurement alarms

2

SW RELATIVE HUMIDITY in % (x10).

3

B

Relative humidity alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm.

4

SW DEW POINT in the set measurement unit (x10).

5

B

Dew Point alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm.

10

SW ABSOLUTE HUMIDITY in g/m3 (x10).

11

B

Absolute humidity alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm.

12

SW WET BULB TEMPERATURE in the set measurement unit (x10).

13

B

Wet bulb temperature alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm.

60

SW

DIFFERENTIAL PRESSURE in the set measurement unit (the multiplier depends on the set unit).

61

B

Differential pressure alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm.

174

SW

TEMPERATURE with 4-wire Pt100 sensor of the T/RH combined probe in the set measurement unit (x100).

175

B

Alarm for temperature with 4-wire Pt100 sensor of the T/RH combined probe: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm.

Measurement units and resolution

5004 5012 5084 5085
5174

W DEW POINT measurement unit: 0=°C, 1=°F.

W WET BULB TEMPERATURE measurement unit: 0=°C, 1=°F.

W DIFFERENTIAL PRESSURE measurement unit: see the table of indexes

SW

DIFFERENTIAL PRESSURE resolution: ..., -2=100, -1=10, 0=1, 1=0.1, 2=0.01, ...

W

Unit of measurement for TEMPERATURE with 4-wire Pt100 sensor of the T/RH combined probe: 0=°C, 1=°F.

General information

10000 10001 10002 10003 10004 10005
10013

W Year of last measurement.

W Month of last measurement.

W Day of last measurement.

W Hour of last measurement.

W Minutes of last measurement.

W Seconds of last measurement.

W

Password level for the current connection: 0=no password, 1=user level, 2= administrator level

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Holding Registers - Read/Write parameters

Address Type

Holding Register description

Measurement alarm thresholds

2

SW RH lower alarm threshold in % (x10).

3

SW RH higher alarm threshold in % (x10).

4

SW DEW POINT lower alarm threshold in the set measurement unit (x10).

5

SW Dew point higher alarm threshold in the set measurement unit (x10).

10

SW ABSOLUTE HUMIDITY lower alarm threshold in g/m3 (x10).

11

SW Absolute humidity higher alarm threshold in g/m3 (x10).

12

SW

WET BULB TEMPERATURE lower alarm threshold in the set measurement unit (x10).

13

SW

Wet bulb temperature higher alarm threshold in the set measurement unit (x10).

60

SW

DIFFERENTIAL PRESSURE lower alarm threshold in the set measurement unit (the multiplier depends on the set unit).

61

SW

Differential pressure higher alarm threshold in the set measurement unit (the multiplier depends on the set unit).

174

SW

Lower alarm threshold for TEMPERATURE with 4-wire Pt100 sensor of the T/RH combined probe in the set measurement unit (x100).

175

SW

Higher alarm threshold for temperature with 4-wire Pt100 sensor of the T/RH combined probe in the set measurement unit (x100).

General information

da 10000 a 10019 10020 10021 10022 10023 10024 10025 10026
10027 10032 10034 10035
10036 da 10037 a 10046
10049
10052
10064

B

User code with ASCII codification. Acceptable values are in the set {32,...,126}.

W Current year

W Current month

W Current day

W Current hour

W Current minute

W Current second

W

Measurement interval: 0=1s, 1=2s, 2=5s, 3=10s, 4=15s, 5=30s, 6=1min, 7=2min, 8=5min, 9=10min, 10=15min, 11=30min, 12=1h

W

Logging interval: 0=1s, 1=2s, 2=5s, 3=10s, 4=15s, 5=30s, 6=1min, 7=2min, 8=5min, 9=10min, 10=15min, 11=30min, 12=1h

W Temperature measurement unit: 0=°C, 1=°F

W Baud rate RS485: 0=9600, 1=19200, 3=38400 bit/s

W

RS485 communication mode: 0=8N1, 1=8N2, 2=8E1, 3=8E2, 4=8O1, 5=8O2

W

Password to be supplied to enable configuration change commands. The reading provides the fixed value 32768.

B

Device group with ASCII codification. Acceptable values are in the set {32,...,126}.

W Differential pressure unit of measurement: see the table of indexes

Setting of the quantities to be displayed in the automatic viewing cycle.

Set the i-th bit (starting from LSB) to 1 if you wish to include the i-th W quantity in the viewing cycle.
Example: if 1=Temp., 2=RH, 3=Td, 4=Diff.Press., 5=AH, 6=Tw, the register is set to 0000 0000 0001 0010, only the relative humidity (RH) and the absolute humidity (AH) will be displayed alternatively.

W Modbus address

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V1.1

Address 10065 10066 10067 10068 10069 10070 10077 10078 10079
10080
10081
10082
10083 10084 10085
10086
10087
10088
10089 10090 10091
10092
10093
10094
10095 da 20000 a 20011 da 20012 a 20023 da 20024 a 20035

Type W W W W W W B B SW SW
W
W B B SW SW
W
W B B SW SW
W
W
W

Holding Register description
Buzzer silencing time, in minutes, for the quantity #1
Buzzer silencing time, in minutes, for the quantity #2
Buzzer silencing time, in minutes, for the quantity #3
Buzzer silencing time, in minutes, for the quantity #4
Buzzer silencing time, in minutes, for the quantity #5
Buzzer silencing time, in minutes, for the quantity #6
Current range of the analog output 1: 0=0...20 mA, 1=4...20 mA
Voltage range of the analog output 1: 0=0...10 V, 1=0...5 V
Value of the quantity associated with the analog output 1 corresponding to 0/4 mA and 0 V Value of the quantity associated with the analog output 1 corresponding to 20 mA and 5/10 V
Analog output 1 test register: the current output goes to the value, in tenths of mA, entered in the register (e.g., enter 120 for 12.0 mA). Set -1 to exit the test mode. Analog output 1 test register: the voltage output goes to the value, in tenths of V, entered in the register (e.g., enter 50 for 5.0 V). Set -1 to exit the test mode.
Current range of the analog output 2: 0=0...20 mA, 1=4...20 mA
Voltage range of the analog output 2: 0=0...10 V, 1=0...5 V
Value of the quantity associated with the analog output 2 corresponding to 0/4 mA and 0 V Value of the quantity associated with the analog output 2 corresponding to 20 mA and 5/10 V
Analog output 2 test register: the current output goes to the value, in tenths of mA, entered in the register (e.g., enter 120 for 12.0 mA). Set -1 to exit the test mode. Analog output 2 test register: the voltage output goes to the value, in tenths of V, entered in the register (e.g., enter 50 for 5.0 V). Set -1 to exit the test mode.
Current range of the analog output 3: 0=0...20 mA, 1=4...20 mA
Voltage range of the analog output 3: 0=0...10 V, 1=0...5 V
Value of the quantity associated with the analog output 3 corresponding to 0/4 mA and 0 V Value of the quantity associated with the analog output 3 corresponding to 20 mA and 5/10 V
Analog output 3 test register: the current output goes to the value, in tenths of mA, entered in the register (e.g., enter 120 for 12.0 mA). Set -1 to exit the test mode. Analog output 3 test register: the voltage output goes to the value, in tenths of V, entered in the register (e.g., enter 50 for 5.0 V). Set -1 to exit the test mode.
Period, in minutes, of the auto-calibration of the zero of the differential pressure

B User code with ASCII codification of the quantity #1.

B User code with ASCII codification of the quantity #2.

B User code with ASCII codification of the quantity #3.

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V1.1

Address da 20036 a 20047 da 20048 a 20059 da 20060 a 20071
30002 30003 30004 30005 30010 30011
30012
30013
30060
30061
30174
30175

Type B
B
B
B B B B B B B B B B B
B

Holding Register description
User code with ASCII codification of the quantity #4.
User code with ASCII codification of the quantity #5.
User code with ASCII codification of the quantity #6.
Measurement alarm hysteresis and delay time RH alarm hysteresis in % (x10). RH alarm delay time in seconds. DEW POINT alarm hysteresis in the set measurement unit (x10). Dew point alarm delay time in seconds. ABSOLUTE HUMIDITY alarm hysteresis in g/m3 (x10). Absolute humidity alarm delay time in seconds. WET BULB TEMPERATURE alarm hysteresis in the set measurement unit (x10). Wet bulb temperature alarm delay time in seconds. DIFFERENTIAL PRESSURE alarm hysteresis in the set measurement unit (the multiplier depends on the set unit). Differential pressure alarm delay time in seconds. Alarm hysteresis for TEMPERATURE with 4-wire Pt100 sensor of the T/RH combined probe in the set measurement unit (x100). Alarm delay time for temperature with 4-wire Pt100 sensor of the T/RH combined probe in seconds.

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V1.1

9 TECHNICAL CHARACTERISTICS

Differential Pressure

Sensor

Piezoresistive

Measuring range

± 100 Pa

Resolution

0.1 Pa

Accuracy

± (0.8% of measure + 0.5) Pa @ 0...50 °C

Zero drift

Self-calibration

Units of measurement Pa, mmH2O, mbar, inH2O, mmHg, hPa

Connection

 6 mm barbed inputs

Overpressure

50 kPa

Type of fluid

Air and neutral gases

Temperature (optional)

Sensor

4-wire Pt100

Measuring range

-40...+150 °C

Resolution

0.01 °C

Accuracy

1/3 DIN

Stability

0.1 °C/year

Relative Humidity (optional)

Sensor

Capacitive

Measuring range

0...100 %RH

Resolution

0.1 %RH

Accuracy

± 1.8 %RH (0..85 %RH) / ± 2.5 %RH (85..100 %RH) @ T=15...35°C ± (2 + 1.5% of the measure)% @ T=remaining range

Sensor operating temperature

-20...+80 °C

Response time

T90 < 20 s (air speed = 2 m/s, without filter)

Temperature drift

±2% in all the operating temperature range

Stability

1%/year

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V1.1

General characteristics

Display

Red electroluminescent

Keyboard

Yes (4 keys)

Configuration

Via front keys, USB and RS485 Modbus connection

Alarm

Buzzer on and LED lighting

Analog output

3 x 0/4...20 mA (active, max. load 500 ) or 3 x 0...5/10 V (min. load 10 k) galvanically isolated

USB

Yes, HID type (no USB drivers) with front Mini-USB type B connector

RS485

Yes, with Slave Modbus-RTU protocol

Protocols Measuring interval

Proprietary, Modbus-RTU 1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 min

Logging interval

1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 min

Internal memory

Circular management or stop logging if memory is full. Number of storable samples from 420,940 to 906,640 to depending on the number of quantities selected for logging.

Power supply

24 Vac / Vdc ± 10%

Power consumption 5 W

Electrical connections Screw terminal block (max. 1.5 mm2 / AWG16 cables)

Operating temperature -10...+50 °C

Storage temperature -10...+70 °C

Housing material

Stainless steel (AISI 316 front panel)

Weight

640 g approx.

Installation

Flush-mount

Protection degree

IP 65 (front panel, with protective cap on USB connector)

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V1.1

Dimensions (mm):

1.5

44

3

92

76

8

8

53

151

218

1

2

3

ESC

MENU

FUNC

Ø3 (x4) 70

9

30

234

HD50CR-AS

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V1.1

10 INSTRUMENT STORAGE
Conditions for storage of the instrument: · Temperature: -10...+70 °C. · Humidity: below 90 %RH no condensation. · When storing, avoid places where: · humidity is high; · instrument is exposed to direct solar radiation; · instrument is exposed to high temperature source; · there are strong vibrations; · there is vapor, salt and/or corrosive gas.
11 SAFETY INSTRUCTIONS
General safety instructions The instrument has been manufactured and tested in compliance with the safety standard EN61010-1:2010 "Safety requirements for electrical equipment for measurement, control and laboratory use" and left the factory in a safe and secure technical condition. The proper operation and the operational safety of the instrument can be ensured only if all the regular security measures are observed as well as the specific measures described in this operating manual. The proper operation and the operational safety of the instrument can be ensured only under the climatic conditions specified in this manual. Do not use the instrument in places where there are:
· Rapid ambient temperature variations that may cause condensation. · Corrosive or flammable gases. · Direct vibrations, shocks to the instrument. · High-intensity electromagnetic fields, static electricity. If the instrument is moved from a cold environment to a hot one or vice versa, the formation of condensation might cause problems to its operation. In this case you need to wait for the instrument temperature to reach ambient temperature before operation.
User obligations The user of the instrument must make sure that the following regulations and directives related to the handling of hazardous materials are fulfilled:
· European directives on safety and health at work. · National regulations on safety and health at work. · Accident prevention regulations.

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V1.1

12 PROBES AND ACCESSORIES ORDERING CODES
HP3517E... Temperature and relative humidity combined probe. Pt100 temperature sensor. Measuring range: 0...100 %RH, -40...+150 °C. 8-pole M12 female connector.

HP3517E

.

CABLE LENGTH: 2 = 2 m, 5 = 5 m, 10 = 10 m
STEM LENGTH: TC1 = 135 mm (PBT technopolymer) TC2 = 150 mm (AISI 304) TC3 = 335 mm (PBT technopolymer)

HD35AP-CFR21 Software option that adds to the features of the basic HD35AP-S software the management of the data in accordance with the FDA 21 CFR part 11 recommendations.

HD75

Saturated solution to check Relative Humidity probes at 75 % RH, includes ring adapter for 14 mm diameter probes, thread M12×1.

HD33

Saturated solution to check Relative Humidity probes at 33 % RH, includes ring adapter for 14 mm diameter probes, thread M12×1.

HD11

Saturated solution to check Relative Humidity probes at 11 % RH, includes ring adapter for 14 mm diameter probes, thread M12×1.

DELTA OHM metrology laboratories LAT N° 124 are ISO/IEC 17025 accredited by ACCREDIA for Temperature, Humidity, Pressure, Photometry / Radiometry, Acoustics and Air Velocity. They can supply calibration certificates for the accredited quantities.

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NOTES

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NOTES

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V1.1

NOTES

HD50CR-AS

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V1.1

GHM GROUP ­ Delta OHM | Delta Ohm S.r.l. a socio unico Via Marconi 5 | 35030 Caselle di Selvazzano | Padova | ITALY Phone +39 049 8977150 | Fax +39 049 635596 www.deltaohm.com | sales@deltaohm.com
WARRANTY Delta OHM is required to respond to the "factory warranty" only in those cases provided by Legislative Decree 6 September 2005 - n. 206. Each instrument is sold after rigorous inspections; if any manufacturing defect is found, it is necessary to contact the distributor where the instrument was purchased from. During the warranty period (24 months from the date of invoice) any manufacturing defects found will be repaired free of charge. Misuse, wear, neglect, lack or inefficient maintenance as well as theft and damage during transport are excluded. Warranty does not apply if changes, tampering or unauthorized repairs are made on the product. Solutions, probes, electrodes and microphones are not guaranteed as the improper use, even for a few minutes, may cause irreparable damages. Delta OHM repairs the products that show defects of construction in accordance with the terms and conditions of warranty included in the manual of the product. For any dispute, the competent court is the Court of Padua. The Italian law and the "Convention on Contracts for the International Sales of Goods" apply.
TECHNICAL INFORMATION The quality level of our instruments is the result of the continuous product development. This may lead to differences between the information reported in the manual and the instrument you have purchased. In case of discrepancies and/or inconsistencies, please write to sales@deltaohm.com. Delta OHM reserves the right to change technical specifications and dimensions to fit the product requirements without prior notice.
DISPOSAL INFORMATION Electrical and electronic equipment marked with specific symbol in compliance with 2012/19/EU Directive must be disposed of separately from household waste. European users can hand them over to the dealer or to the manufacturer when purchasing a new electrical and electronic equipment, or to a WEEE collection point designated by local authorities. Illegal disposal is punished by law.
Disposing of electrical and electronic equipment separately from normal waste helps to preserve natural resources and allows materials to be recycled in an environmentally friendly way without risks to human health.
O
V1.1 09/2021



References

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