Contrec 202A Analogue Input Rate Totaliser Instruction Manual

Instruction Manual for Contrec models including: 202A Analogue Input Rate Totaliser, 202A, Analogue Input Rate Totaliser, Rate Totaliser

202A-M-V7

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202A-M-V7

FIELD MOUNTED RATE TOTALISER
MODEL 202A

202A-M-V7

June 2022

CONTENTS

Safety Noce

1. Introducon

1.1 Model Number Versions

1.2 Intrinsic Safety Approvals

2. Specification

3. Programming

3.1 Operaon

3.2 Program Steps

3.3 Calculation of Rate and Total

3.4 Total Conversion

3.5 Filtering

3.6 Example

4. Signal Input

5. Alarm & Pulse Outputs

6. Intrinsic Safety Connections

7. Installaon

7.1 Wiring

7.2 Maintenance

7.3 General

7.4 The Main Electronics

7.5 Grounding

7.6 Wall Mounng

7.7 Front Panel

7.8 Panel Mount

7.9 Dimensions

7.10 Terminal Designaons

8. Instrument Disposal

Index

1 Safety
SAFETY NOTICES
Only competent persons with the applicable training and authorisaon should work in potenally explosive atmospheres. When this instrument is used in hazardous area, all wiring must be energy limited according to the documentaon provided and the marking label aached to the instrument. The safety of any system that incorporates Contrec 200 series instruments is the sole responsibility of the system assembler/installer. This manual must have been fully read and understood before the installaon and commissioning of any system using this instrument. The instrument should only be operated if installed and maintained correctly To ensure correct and safe operaon of this instrument aer installaon and maintenance the instrument should be fully sealed via the front screws and gland entries.
SPECIAL CONDITIONS FOR SAFE USE To comply with this products ATEX/IECEx/CSA cerficaon the specialcondions for safe use must be followed. The Instrument type 202Ai shall be mounted in an area where electrostac charge/discharge will be avoided.

Introducon 2
1. INTRODUCTION
The Model 202Ai Rate-Totaliser is a microprocessor based instrument designed to measure a 4-20mA signal from flowmeters and pressure transducers. The instrument can be programmed to display directly in engineering units and includes features such as linear or square law calculation, integraon and digital filtering. Rate, Total and Accumulated Total can be displayed in engineering units on the large LCD display. A front panel switch selects the funcon for display and a Reset buon allows the Total to be reset to zero. The instrument is fully programmable, with all calculation constants set via the front panel switches and stored in a non-volatile memory which will retain data indefinitely. The user can program span, filtering levels, display resoluon and cutoff point. The instrument is powered from a 4-20mA input signal and therefore, requires no external power.

The Model 202Ai Rate Totaliser conforms to the EMC-Direcve of the Council of European Communies 2014/30/EU, the LVD direcve 2014/35/EU and the following standards:

EN61326:2013

Electrical equipment for measurement, control and laboratory use EMC requirements : Residenal, Commercial & Light Industry Environment & Industrial Environment.

EN61010:2010

Safety requirements for electrical equipment for measurement, control, and laboratory use.

In order to comply with these standards, the wiring instructions in Secon 7.5 must be followed.

3 Introducon
1.1 MODEL NUMBER VERSIONS The Model Number describes the opons available for the 202Ai as follows:
Model 202Ai.X0X.X
The first X denotes the mounting options and will be replaced by one of the following numbers:
0 No holes drilled for cable entry 1 Panel mount 2 Wall mount (standard) 6 for Pipe mounting The Wall mount instrument is supplied with cable glands that are watertight and have integral strain relief. The second X denotes approval Versions: C CSA USA / Canada Approval M ATEX/IECEx Approval The third X denotes enclosure Type*: A Aluminium S Stainless Steel Example part number 202Ai.20M.A *NOTE - As standard the enclosure type is plasc, unless specified with `A' or 'S' as above.
Model 202A (Plasc Enclosure)

Introducon 4

1.2 INTRINSIC SAFETY APPROVALS

The Model 202Ai is certified for use in hazardous areas and has IECEx, ATEX and CSA US/C approvals.

The Model 202Ai cerficaon details are:

IECEx Approval

IECEx BVS 15.0099X

Rang

Ex ia llB T4 Gb

ATEX Approval Rang

BVS 15 ATEX E 106 X II 2G Ex ia IIB T4 Gb

Ambient Temperature: Maximum ambient temperature of -20° to+60°C.

CSA NRTL/C Approval Type:

70061366 Class 1, Groups C and D T4

When installing in hazardous areas, the instrument must be installed according to the guidelines in Secon 2 and in accordance with the local relevant standards for wiring and installation in hazardous areas. Failure to do so may result in the protecon provided by the equipment becoming impaired. When bearing the CSA mark, the instrument must be powered supply unit with a limited energy cisrcuoit in accordance with CAN/CSA C22.2 No. 61010-1-12 and ANSI/UL 61010-1, or Class 2 as defined in teh Canadian Electrical Code C22.1, Secon 16-200 and/or Naonal Electrical Code (NFPA 70), arcle 725.121.

5 Introducon
1.2.1 MAXIMUM INPUT VALUES 4-20mA Input
The input can be connected to IS circuits with the following maximum values: Ui = 28V Ii = 93mA Pi = 653mW
Relay Outputs The outputs can be connected to IS circuits with the following maximum values: Ui = 28V Ii = 93mA Pi = 653mW

Specification 6

2. SPECIFICATION

General
Display: Reseable Total:
Accumulated Total: Rate/Display: Span: Decimal Points: Timebase: Signal Type:

LCD, which is continuously powered. 7 digits with 10mm (0.4") high digits. Reseable from front panel. Displayed when the Accumulated Total button is pressed. 4 digits with 8.5mm (0.33") high digits. The units of measure per timebase (eg. gallons/sec) is programmable in the range 0.000001 to 999,999. Decimal Point posions are fully programmable for both rate and total. Span can be programmed in units per second, minute,hour or day. 4-20mA.

4-20mA Input
Resoluon and Linearity: Accuracy:
Update Time: Connecon: Voltage Drop:

0.05% of span. 0.05% of span @ 25°C. 0.1% (typ) of span, full temperature range. 0.5 seconds. Two wire. 2.5 volts maximum.

7 Specification

Outputs
Type:
Switching Power: Saturaon Voltage: Isolaon:
Pulse Duration: (for pulse output)

Two open collector outputs suitable for driving DC solenoids or external relays. The outputs provide high and low flow alarms or pulse output and low flow alarm. 200mA. 30VDC maximum. 0.8VDC typical across the output in the "on" state. Both outputs are separately opto-isolated.
If CAL00 = 1 (scaled pulse output): a. 1ms if output frequency > 50Hz, b. 10ms if output frequency is 5 ... 50Hz, c. 100ms if output frequency is < 5Hz.

Physical Temperature: Dimensions: Protecon: Cable Entry: Wall Mounting: Pipe Mounting:
Panel Mounting:
Max Weight:

Operating Temperature: -20°C to 60°C. 98mm (3.9") high x 151mm (5.9") wide x 43mm (1.7") deep (cable glands not included). Sealed to Nema 4x or IP67 standards. By cable glands. Universal Mounting Bracket supplied as standard. A galvanised metal bracket is available which enables the Model 202A to be attached to a 2" vercal or horizontal pipe. Supplied with mounting brackets. Terminals accessible from rear. (Note that the panel mount version is not watertight.) Cutout: 141mm (5.6") wide x 87mm (3.4") high.
Stainless Steel - 22200g, Aluminium 900g, Polycarbonate - 400g

Addional

Polluon Degree:

Over Voltage Catergory: II

Maximum Altude: 2000m above sea level

Programming 8
3. PROGRAMMING
The Model 202A is fully programmable, with all parameters being stored in nonvolatile memory.
The Program Mode can be entered in one of two ways:
1. Plasc Enclosure - By removing the lower plasc cover strip (ie. the dark grey strip along the boom of the enclosure) and replacing it the wrong side up. This brings a small magnet on the inside of the cover strip in contact with a reed switch inside the instrument.
2. Metallic Enclosure - By removing the metallic cover strip below the buons. Unscrew the strip and replace the wrong side up. This brings a small magnet on the inside of the cover strip in contact with a reed switch inside the instrument.
The PROGRAM switch is used to step through the program (CAL sequences) and The and keys on the front panel are used to change and increment the flashing digits.
The CAL number is displayed on the lower display and the parameter is displayed on the upper display.
Parameters in Program Mode that consist of the two parts, whole numbers and digits after the decimal point, are restricted to having a maximum of 6 significant digits. Therefore the number of significant digits entered in the whole numbers determines the number of digits that are able to be entered in the digits after the decimal point.
For Example
000001 in the whole numbers makes 00000 available after the decimal place. 000100 in the whole numbers makes 000 available after the decimal place. 010000 in the whole numbers makes 0 available after the decimal place.

9 Programming
3.1 OPERATION The Model 202A Rate Totaliser will display:
Rate Reseable Total Accumulated Total
Both the Rate and Reseable Total are continuously displayed while the Accumulated Total is only displayed when the ACCUM TOTAL key is pressed.

ACCUM TOTAL

RESET

PROGRAM

The Reseable Total can be reset at any me by pressing the RESET key.

The instrument also has a test mode which can be entered by simultaneously pressing all three front panel keys. The tests are as follows:

Lo Test

By pressing the ACCUM TOTAL key, the low alarm output will go low.

Hi Test

By pressing the RESET key, the high alarm output: a. will go low if CAL00 = 0 (high alarm output), b. will output 100ms pulses every 0.5sec if CAL00 = 1 (scaled
pulse output).

Display Test

By pressing the PROGRAM key, all segments of the display will show.

To exit the test mode, simultaneously press all three front panel keys.

Note that when the input signal drops below 3.75mA (4-20mA input), a signal error will occur. The display will alternate between the current total and the word "SIGNAL". When the input signal drops below 3.5mA the Model 202A shuts down saving totals in the non-volale memory.

Programming 10

3.2 PROGRAM STEPS

Step

Comment

CAL 00

Pulse Output.

0 = No pulse output, low and high alarms 1 = Scaled pulse output and low alarm

CAL 01 CAL 02

Span - whole numbers. Span - digits after the decimal point.

The Span is the number of units of measure per timebase (e.g. litres/sec, Gal/min). The Span can be programmed in the range of 0.000001 - 999,999.

See secon 3.2.

CAL 03

Cutoff Point.
This determines the cutoff point as a fracon of Span. See secon 3.2.2.

CAL 04 Decimal Point for Rate Display.

CAL 05

The flowrate can be displayed with 0, 1, 2 or 3 decimal point places.
Timebase for Rate.
The Rate can be displayed in units per second, minute, hour or day.
0 = second 1 = minute 2 = hour 3 = day.

See secon 3.3

11 Programming

Step CAL 06
CAL 07 CAL 08 CAL 09
CAL 10

Comment Filter.
Fluctuations in the flowrate can be filtered out so that the Rate is held steady. The filter value is programmed between 1 - 99 where "1" represents no filtering and 99 is maximum. See secon 3.4. Decimal Point for Total Display. The totals can be displayed with 0, 1, 2 or 3 decimal points. Total Conversion Factor - whole numbers. Total Conversion Factor - digits after the decimal point. The Total Conversion Factor enables the Rate to be displayed in one engineering unit and the Totals to be displayed in another engineering unit. The Total Conversion Factor can be programmed in the range of 0.000001 - 999,999. Set to 1.000 if totals and rate are in the same unit eg. litres. See secon 3.3. Low Alarm - whole numbers.

Programming 12

Step CAL 11 CAL 12 CAL 13
CAL 14 CAL 15 SOFT

Comment
Low Alarm - digits after the decimal point. CAL 10 & 11 program the flowrate below which the low alarm relay will close. The value can be programmed in the range 0 to 999,999.
High Alarm or Pulse Output Factor - whole numbers. High Alarm or Pulse Output Factor - digits after the decimal point.
CAL 12 & 13 program the flowrate above which the high alarm relay will close. The value can be programmed in the range 0 to 999,999.
If the pulse output is selected (see CAL 00), the value will represent the total per pulse. eg. 5 litres per pulse.
Input Flow Relaonship. 0 = Linear Input 1 = Square Root Input
Accumulated Total Reset. CAL 15 displays the accumulated total which can be reset by pressing and holding the RESET key for about 5 seconds.
Soware Version.

13 Programming

3.3 CALCULATION OF RATE AND TOTAL

3.3.1 Analog Input

The flowrate, R, is calculated as follows:

R = SA

if the linear relaonship is selected

R=S A

if a square law relaonship is selected

where A = the input value S = the span

At the minimum input (i.e. 4mA), A = 0, and at the maximum input (ie. 20mA), A = 1.

The Span, S, can be set during calibraon anywhere in the range of 0.000001 to 999,999.

The Span, S, is programmed in units of volume per timebase (ie. litres/minute or kilograms/hour). This also means that the Total will be displayed with the same unit of volume, ie. litres or kilograms.

Programming 14

3.3.2 The Cutoff Point Because many transducers do not always exactly transmit 4mA when they are at zero rate, it is often necessary to define a rate below which no integraon takes place. This is termed the cutoff point and is programmed as a percent age of the Span, S. For example, if S = 2200 kg/min in a square law system, and the cutoff point is set at 20.0%, the actual cutoff rate Rc can be determined as follows: The cutoff rate is defined as:

Rc 2200 A At 20% cutoff,

Rc = 2200 x 0.2

= 440 kg/min

The value of A which would produce this cutoff is:

A = 0.04

(since

and the input signal would be:

0.04 0.2)

I = 16mA x 0.04 + 4mA

= 4.64mA

15 Programming

3.4 TOTAL CONVERSION

The Total Conversion feature enables the rate to be displayed in one engineering unit (e.g. gallons/minute) and the totals to be displayed in another engineering unit (e.g. barrels).

The Span is always programmed in the unit relating to Rate, and the Total Conversion constant is a division factor which can be used to convert the totals to the different unit. The Total Conversion factor affects the reseable and accumulated totals.

For Example.

If the Rate is required in gallons per minute:

1. The Span would be programmed as gallons per minute. 2. The timebase would be programmed as minutes.

If the Totals are required in barrels:

3. The Total Conversion factor is programmed as 42 (there are 42 gallons in a barrel). All totals will now totalise in barrels.

Some common units are given below together with the Total Conversion constant which should be programmed.

Rate* Gallons (US)/ Litres/ ml/ Mgallons/

Totals Barrels (oil) Kilolitres Litres Acre-feet

TOTCON 42.000 1000 1000 0.32587

* Units per second, minute, hour or day. The timebase is programmed separately during Programming.

Programming 16
3.5 FILTERING Frequency fluctuaons caused by pulsang flow through a flowmeter, often makes the Rate impossible to read with any precision. The Model 202A has a digital filter which will average out these fluctuations and enable the Rate to be read to four digit accuracy. The ability to select a suitable filtering level means that highly accurate and stable readings can be obtained without excessive lag. The diagram below shows a pulsating signal input together with the effect of filtering.

Rate

Filtered Response

Unfiltered Response

Time

As a guideline to the degree of filtering to be used, the following table shows the response to a step change in input. The value, CAL 06, is the filter constant which is programmed during the Programming routine. The times for the display value to reach 90% and 99% of full swing are given in seconds, for different values of CAL 06.

17 Programming

90%

99%

103

113

Table 1 - Response to a step Input (in seconds).

Note that if CAL 06 is set to 01 there is no filtering of the input signal.

Programming 18

3.6 EXAMPLE

A vortex flowmeter has a maximum output of 20.538 litres/min at 20mA. It is required to display the flowrate in litres/min with 1 decimal point and the total in litres with no decimals. High and low alarms are required at 18 l/m and 2 l/m respecvely. The instrument is then programmed as follows:

CAL00 CAL01 CAL02 CAL03 CAL04 CAL05 CAL06 CAL07 CAL08 CAL09 CAL10 CAL11 CAL12 CAL13 CAL14 CAL15
SOFT

0 No Pulse Output 00020 Span (Whole Numbers) 5380 Span (Decimals)
0.05 Cutoff Point as a fraction of Span 1 Rate decimal posion 1 Timebase 01 Filter disabled 0 Total decimal posion
0001 Total Conversion (set to 1.0000) 0000 Total Conversion (decimals) 00002 Low Alarm 0000 Low Alarm 00018 High Alarm 0000 High Alarm
0 Linear Input xxxx Accumulated Totals
202A1.11 Software Version

19 Signal Input
4. SIGNAL INPUT
The signal input is on terminals 3 and 4 and can be connected as follows:
Loop Supply Voltage

TRANSMITTER

SIGNAL INPUT

Alarm & Pulse Outputs 20

5. ALARM & PULSE OUTPUTS

Open collector outputs are provided for high and low flowrate alarms. The output can sink up to 200mA and can be used to power external relays, lights or audible alarms. The outputs are internally protected against voltage spikes caused by relays and coils.

Both outputs are separately isolated via opto isolators.

As an alternave to a high flowrate alarm, the output on terminals 7 and 8 can be programmed to output a scaled pulse output.

The switching points can be programmed during the setup mode and the low flow alarm will switch on whenever the flowrate drops below the programmed flowrate. Similarly, the high alarm switches on whenever the flow exceeds the high setpoint.

If a Scaled Pulse Output is programmed, a pulse will be output every preset value of the total. For example, if the total is in litres, then programming 5 will output one pulse every 5 litres. The duraon of pulses is adjusted automacally to the output frequency.

Specification for Alarm Outputs

Maximum Current (sink): Maximum Voltage: Saturaon Voltage: Isolaon: Pulse Frequency: Pulse Duration:

200mA. 30VDC. 0.8VDC across Outputs when in the "on" state. Both outputs are separately isolated. 500Hz maximum. 1ms if output frequency > 50Hz. 10ms if output frequency = 5 ... 50Hz. 100ms if output frequency < 5Hz.

21 Alarm & Pulse Outputs Connections

5-24 Volts Supply

6 5
ALARM RELAY

External load resistor

5-24 Volts Supply

8 7

PULSE OUTPUT

Intrinsic Safety Connections 22
6. INTRINSIC SAFETY CONNECTIONS
When installing the Model 202Ai in hazardous areas, the wiring and installation must comply with appropriate installaon standards. The approval uses enty parameters and an associated apparatus type approval on the input/output connecons to the 4-20mA current loop and alarms. The 4-20mA input and alarm outputs must, therefore, only be connected as shown on the following page, to barriers with the specified parameters. The Model 202A will connect directly to a 4-20mA current loop and alarms, provided they do not exceed the following input parameters:
Ui = 28V Ii = 93mA Pi = 653mW The internal capacitance seen on the input (terminals 3 & 4) is 0.02uF while the internal capacitance seen on the output (terminals 5-8) is 0.1uF maximum. Inductance is negligibly small on both the input and output. Outputs The two open collector outputs must only be connected to certified IS equipment via barriers as shown on the following page. Only cerfied intrinsically safe solenoids may be used for IS applications.

SAFE AREA

HAZARDOUS AREA

I.S. Barrier Ro = 300 ohm
I.S. Barrier Uo = 28V maximum Io = 93 mA maximum Po = 653 mW maximum

Approved

4-20mA

Current

6(+)

Loop

Transmitter

5(-)

4(+)

MODEL 202A

3(-) RATE TOTALISER

8(+)

7(-)

Approved IS Coil
Approved IS Coil

Intrinsically Safe installation

SAFE AREA
I.S. Barrier Ro = 300 ohm
I.S. Barrier Ro = 300 ohm
I.S. Barrier Uo = 28V maximum Io = 93 mA maximum
mPoax=im65u3mmW

23 Intrinsic Safety Connections

Installaon 24
7. INSTALLATION
7.1 WIRING All wiring must be undergone by a competent persons with the necessary training and comply to all naonal and local standards and legislaon Use wire with a minimum temperature rang of 65 Degrees Celsius When connecng the 202A it is good pracce to use shielded cable. The shield should be connected to earth at one end of the cable. The other end of the shield should not be connected. This wiring pracce is mandatory in order to comply with the requirements for Electromagnec Compability as per EMC-Direcve 2004/108/EC of the Council of the European Community. 7.2 MAINTENANCE All printed circuit boards must be repaired by Contrec. In the case of a fault, no aempt should be made to repair the instrument as the intrinsically safe cerficaon may be impaired. For further details contact Contrec Ltd or Contrec representaves listed at the end of this manual. All baeries for use in hazardous areas must be supplied by Contrec. No substute baeries are permied as the baery packs contain cerfied energy liming devices and insulaon protecon. The inside of the instrument should remain clean and free of contaminants. Aer roune maintenance the instrument must be re sealed to ensure no ingress occures 7.2.1 Cleaning Clean with mild detergent or maximum 35% isopropyl soluon 7.3 GENERAL Ensure that all gland entries not used are blanked with IP rated gland plugs/blanking caps. The instrument should be installed so that it is protected from impact and extreme weather condions Install in a way the minimises vibraon

CONTRE C SYSTEM S

25 Installaon 7.4 THE MAIN ELECTRONICS The front secon of the housing contains the microprocessor and display. It is also possible to adjust the display contrast via a small potentiometer on the board. The DISPLAY CONTRAST control is shown below and this can be adjusted for optimum contrast. Adjacent to this control is a RESET switch which can be used to reset the microprocessor. Note that pressing this buon will Set all totals to zero and calibration parameters to default values.
Display Contrast RESET
NOTE - Image shows plastic front panel
7.5 GROUNDING THE ENCLOSURE NOTE. This only applies to the aluminium enclosure On one side of the enclosure a ground point is available to aach the 202A to the nearest protecve earth (PE).
Earth Point

Installaon 26
7.6 WALL MOUNTING A wall mounting bracket is supplied with each instrument. The bracket should be attached to the wall using round head screws (do not use counter sunk screws). The bracket is mounted with the "tray" secon at the boom. The instrument is then attached to the bracket at the boom with two screws (see diagram below).

27 Installaon
7.7 FRONT PANEL 7.7.1 Removing the front panel - Plasc enclosure Only open the instrument in a clean, dry environment The front of the instrument is removed as follows:
1. Remove both the top and boom cover strips (i.e. the dark plastic strips on the front) by levering a screwdriver under one end.
2. Undo the seven screws retaining the front. Note that the screws should not be removed from the front panel as they are retained by O-rings.
3. Pull the front panel free from the housing. Replacing the front panel of the instrument is the reverse procedure. However, ensure that the front panel is aligned at both connector points before tightening the screws.

Installaon 28 7.7.2 Removing the front panel - Metallic enclosure The front panel should be removed as follows:
1. Unscrew the 4 x pozi drive head screws from each corner of the front panel.
2. These are retaining screws, held onto the front panel with o-rings 3. Once fully loosened the front panel will pull away from the housing. To replace the front cover, follow the above procedure in reverse. Ensure that the front panel is aligned at connector points before tightening the screws.
If slightly sff, the enclosure has a small gap on the right side of the front panel. This can be used to open the instrument with a tool.

29 Installaon 7.8 PANEL MOUNT VERSION The panel mount version of the Model 202Ai is supplied with two panel mount brackets and plug-in terminals which are accessible from the rear of the instrument. A diagram of the rear panel is shown below.

Note Used

MODEL 202A

High Alarm Pulse Out

Low Alarm

Transmitter

Not Used

Panel Mount Bracket

Plug-in Terminals

REAR VIEW OF 202A PANEL MOUNT CASE

The cutout for the panel mount version is 141mm (5.55") wide x 87mm (3.43") high. NOTE - The aluminium enclosure can not be supplied as a panel mounng instrument

7.9 INSTRUMENT DIMENSIONS 7.9.1 Aluminium / Stainless Enclosure

Installaon 30

161mm

51mm

7.9.2 Plasc Enclosure

106mm 47mm

98mm

151mm

51mm

3-6.5mm
51mm

43mm

27mm 24mm

Installaon 31

7.10 TERMINAL DESIGNATIONS

4-20mA Input

4-20mA (-)

4-20mA (+)

Outputs

Low Alarm (-)

Low Alarm (+)

High Alarm (-) or Pulse Output (-)

High Alarm (+) or Pulse Output (+)

Instrument Disposal 32
8. INSTRUMENT DISPOSAL
Contrec instrumentaon should not be thrown into the general waste system.
If within EU member states, this instrument should be disposed of according to the guidelines set by the WEEE (Waste Electrical and Electronic Equipment) direcve 2012/19/EU. If outside of the EU, this equipment should be responsibly disposed of according to local and naonal regulaons for EEE (Electrical and Electronic Equipment).
By not discarding of this product along with other house hold waste you are preserving natural resources and reducing waste sent to landfill and incinerators.

Index 33

Index
A
Accumulated Total, 6, 9
C
CAL Sequences, 10 Cutoff Point, 10, 14
D
Decimal Point, 10 Display, 6, 9 Display Test, 9 Dimensions, 30
F
Filtering, 16
G
Grounding, 25
H
Hi Test, 9 High Alarm, 9, 12
I
Installaon, 24 Intrinsic Safety, 4, 5, 22 Instrument Disposal, 32
L
Lo Test, 9 Low Alarm, 9, 12
M
Model Number, 3

O
Operating Temperature, 7
Operaon, 9
P
Panel Mount, 29 Programming, 8 Protecon, 7 Pulsang Signal, 16 Pulse Output, 20
R
Rate, 9 Removing the Front
Panel, 27 Reseable Total, 9 Response, 17
S
Span, 13 Specificaon, 6 Safety, 1 Special Condions of Use, 1
T
Temperature, 7 Terminal
Designations, 31 Test Mode, 9 Timebase, 10, 13 Total Conversion, 15

W
Wall Mounting, 26

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