Omega CL532 User guide

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M-3963/0503

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MADE IN

User’s Guide

DC mA DC V DC W

20.00 24.0
leakage =

AC V = 00.0

POWER MEASURE DIAG

01200

00.02mA

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CL532

CL532

mA/V Loop Calibrator

with Loop Diagnostic

OMEGAnet®Online Service Internet e-mail

www.omega.com [email protected]

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®

®

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It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that
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The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

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WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a
period of 37 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month
grace period to the normal three (3) year product warranty to cover handling and shipping time.
This ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service
Department will issue an Authorized Return (AR) number immediately upon phone or written request.
Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no
charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,
including but not limited to mishandling, improper interfacing, operation outside of design limits,
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of
having been tampered with or shows evidence of having been damaged as a result of excessive corrosion;
or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating
conditions outside of OMEGA’s control. Components which wear are not warranted, including but not
limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any
damages that result from the use of its products in accordance with information provided by
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as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE,
AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND
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consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility
as set forth in our basic WARRANTY/ DISCLAIMER language, and, additionally, purchaser will indemnify
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Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN
(AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return
package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.

FOR W

ARRANTY RETURNS, please have the

following information available BEFORE
contacting OMEGA:

1. Purchase Order number under which the product
was PURCHASED,

2. Model and serial number of the product under
warranty, and

3. Repair instructions and/or specific problems
relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords
our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2003 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC.

FOR NON-WARRANTY REPAIRS,
for current repair charges. Have the following
information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST
of the repair,

consult OMEGA

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems
relative to the product.

CL532 Field Calibration Procedure Continued

Two Wire Simulation Calibration:

Verify the CL532 is in Two Wire Simulation mode by press the SOURCE Button until mA 2W SIM appears on the
bottom right side of the display.

Two Wire Simulation:

LO Calibration:

1. Connect the CL532 terminals in series to a Voltage Source (Set at 10V) and Current Meter.

2. Slide the EZ-Check switch to the LO Position indicated by displaying a LO on the left side
of the display.

3. Dial the CL532 so the meter reads 4.000mA.

4. Press the STORE/CLEAR button.

5. The display will flash STORED to confirm that the displayed value was stored.

CL532

mA/V Loop Calibrator

with Loop Diagnostic

Quickstart Instruction

This instrument was shipped with advanced features disabled.

HI Calibration:

1. Slide the EZ-Check switch to the HI position indicated by displaying a HI on the left side
of the display.

2. Dial the CL532 so the meter reads 20.000mA.

3. Press the STORE/CLEAR button.

4. The display will flash STORED to confirm that the displayed value was stored.

Source Voltage Calibration:

Verify the CL532 is in source Voltage mode by press the SOURCE Button until V SOURCE appears on the bottom
right side of the display.

Source Voltage:

LO Calibration:

1. Connect the CL532 terminals to a Voltage Meter.

2. Slide the EZ-Check switch to the LO Position indicated by displaying a LO on the left side
of the display.

3. Dial the CL532 so the meter reads 0.000V.

4. Press the STORE/CLEAR button.

5. The display will flash STORED to confirm that the displayed value was stored.

HI Calibration:

1. Slide the EZ-Check switch to the HI position indicated by displaying a HI on the left side
of the display.

2. Dial the CL532 so the meter reads 24.000V.

3. Press the STORE/CLEAR button.

4. The display will flash STORED to confirm that the displayed value was stored.

Completion of Calibration:

Turn the CL532 off. Next time the unit is turned on the CL532 will be Calibrated and in normal operational mode.

Press the EZ-Dial Knob while turning on the CL532 to access the configuration menu.
Select configuration options by turning the EZ-Dial Knob. Change options by pressing
the knob. Exit configuration mode by turning the CL532 off or waiting 8 seconds without
touching the EZ-Dial Knob.

AUTO OFF
EZ-STEP
HART MODE
EZ-CHECK
LOOP DIAG
FACTORY RESET

Configuration Option Description
Auto Off The CL532 turns itself off after 30 minutes without pressing

EZ-Step Access to step/ramp functions is disabled by default. This

®

Compatability A 250W series resistor may be enabled to provide HART

HART

EZ-Check EZ-Check HI/LO readings is disabled by default. Enabling

Loop Diagnostic Entry into loop diagnostic is enabled. This may be disabled

Factory Reset Set Factory Reset to ON to return the CL532 to its factory

a button or turning the knob. This feature may be turned
OFF for continuous operation until the end of battery life.

advanced feature may be enabled to allow access to
manual and automatic step/ramp functions.

compatability. This feature is disabled, by default, to give
maximum battery life.

this feature allows read mode (Read mA, Power/Measure,
and Read V) recall of maximum and minimum readings.

if diagnostic mode is not needed.

configuration. This includes source mode EZ-Check HI/LO
settings, default dial positions, and configuration options.
Exit configuration mode by turning the CL532 off or waiting
8 seconds without touching the EZ-Dial Knob.

ON
OFF
OFF
OFF

ON
OFF

CL532 Operating Instructions

CL532 Field Calibration Procedure Continued

A. Basic Keypad Operations

EZ-Check Switch/EZ-Step Pushbutton

Slide the switch to select the user stored
values for calibration points. Press the
button to adjust the output by the user
defined step size. Press and hold the
button to activate the auto step/ramp
mode.

0

SOURCE/STEP SIZE Button

Press and release SOURCE/STEP SIZE to
change source modes. These are:

Source Milliamps
2-Wire Transmitter Simulate
Source Volts

Press and hold SOURCE/STEP SIZE to
change step size. Refer to section H.

ON/OFF Button

Press ON/OFF to turn the CL532 on or off.

16.0 01

HART

SOURCE

CL532

100

mA

UNITS/STEP TIME Button

Press and release UNITS/STEP TIME to
change how current is displayed: either in
milliamperes or % of 4-20 mA. Voltage is only
displayed in volts.

Press and hold UNITS/STEP TIME to change
step size. Refer to section H.

READ/SOAK TIME Button

Press and release READ/SOAK TIME to
change read modes. These are:

Read Milliamps
Power and Measure 2-Wire Transmitter
Read Volts

Press and hold READ/SOAK TIME to change
soak time. Refer to section H.

STORE/CLEAR/DIAGNOSTIC Button

In any source mode:
Press STORE/CLEAR/DIAGNOSTIC to save
the current reading in the EZ-Check HI or LO
position. The EZ-Check switch must be set
to HI or LO. The display will flash STORED to
confirm.

In any read mode:
Press STORE/CLEAR/DIAGNOSTIC to clear
the values saved in the EZ-Check HI and LO
positions. The display will flash CLEARED to
confirm.

Press and hold STORE/CLEAR/DIAGNOSTIC
to activate diagnostic mode. See section I.

EZ-Dial Knob

Turn the EZ-Dial knob to adjust the output
level. Press and turn to adjust 100X faster.

B. CL532 Configuration

Press the EZ-Dial Knob while turning the CL532 on to access the
configuration mode. Turn the EZ-Dial Knob to select configuration items.
Press the EZ-Dial Knob to change configuration items. Turn the unit off or
just wait approximately 8 seconds to exit the configuration mode.

Auto Off - ON (default)/OFF

Auto Off is ON, by default, to save battery life by turning the unit off after 30 minutes of inactivity. Turn
Auto Off to OFF to prevent automatic shutdown. This is typically useful for manual loading or continuous
use.

EZ-Step - ON/OFF (default)

If EZ-Step is ON manual and automatic stepping/ramping is available. If EZ-Step is OFF the EZ-Step
pushbutton will be disabled and the step direction indicator will not be displayed.

AUTO OFF
EZ-STEP
HART MODE
EZ-CHECK
LOOP DIAG
FACTORY RESET

ON
OFF
OFF
OFF

ON
OFF

Read DC Voltage Calibration:

Verify the CL532 is in Read Volts mode by press the READ Button until V Read appears on the bottom right side of
the display.

Read DC Voltage Calibration:

LO Calibration:

1. Connect the CL532 terminals to a DC Voltage Source.

2. Slide the EZ-Check switch to the LO Position indicated by displaying a LO on the left side
of the display.

3. Set the Voltage Source to 0.000V.

4. Press the STORE/CLEAR button.

5. The display will flash STORED to confirm that the displayed value was stored.

HI Calibration:

1. Slide the EZ-Check switch to the HI Position indicated by displaying a HI on the left side
of the display.

2. Set the Voltage Source to 60.000V.

3. Press the STORE/CLEAR button.

4. The display will flash STORED to confirm that the displayed value was stored.

Read AC Voltage Calibration:

Verify the CL532 is in Read AC Volts mode by pres s the READ Button until VAC Read appears on the bottom
right side of the display.

Read AC Voltage Calibration:

LO Calibration:

1. Connect the CL532 terminals to an AC Voltage Source.

2. Slide the EZ-Check switch to the LO Position indicated by displaying a LO on the left side
of the display.

3. Set the AC Voltage Source to 0.000V.

4. Press the STORE/CLEAR button.

5. The display will flash STORED to confirm that the displayed value was stored.

6. The display will flash STORED to confirm that the displayed value was stored.

HI Calibration:

1. Slide the EZ-Check switch to the HI Position indicated by displaying a HI on the left side
of the display.

2. Set the AC Voltage Source to 60.000V.

3. Press the STORE/CLEAR button.

4. The display will flash STORED to confirm that the displayed value was stored.

Source mA Calibration:

Verify the CL532 is in source mA mode by press the SOURCE Button until mA SOURCE appears on the bottom
right side of the display.

Source mA:

LO Calibration:

1. Connect the CL532 terminals to a Current Meter.

2. Slide the EZ-Check switch to the LO Position indicated by displaying a LO on the left side
of the display.

3. Dial the CL532 so the meter reads 0.000mA.

4. Press the STORE/CLEAR button.

5. The display will flash STORED to confirm that the displayed value was stored.

HI Calibration:

1. Slide the EZ-Check switch to the HI position indicated by displaying a HI on the left side
of the display.

2. Dial the CL532 so the meter reads 20.000mA.

3. Press the STORE/CLEAR button.

4. The display will flash STORED to confirm that the displayed value was stored.

CL532 Specifications Continued

CL532 Operating Instructions

Voltage Specifications (Read Rang e):

Read Range: 0.000 to 24.000 VDC then 24.01 to 30.00 (with 4X over range) Auto Ranging

Resolutions 0.001 V up to 24 V, 0.01 V up to 30.00 V

Temperature Effect

Input Resistance

Accuracy

Voltage Specifications (Source Rang e):

Source Range: 0.000 to 24.000 VDC

Output Resistance

Source Current

Accuracy

Battery life > 40 hour typical

Calibration Certificate:

NIST Traceable Certificate provided

Option: Test data available upon request at additional charge.

Available Options:

Option: Part Number:

AC adaptor CL530-ADAPTOR

Carrying Case SC530

± 100 ppm/°C of range

1 MW

0.000 to 24.000 VDC ± (0.012% RDG + 0.004 V)

24.01 to 30.00 VDC ± (0.025% of reading ±0.04 V)

0.3 W

20.000 mA with Flashing indicator for over range

±(0.012% RDG + 0.004 V) ±50ppm/°C of range

CL532 Field Calibration Procedure

Suggested Equipment:

1. Precision Current Meter with accuracy of ±0.0055% at 20mA.

2. Precision Current Source with accuracy of ±0.0055% at 20mA.

3. Precision DC Voltage Source with accuracy of ±0.0047% at 60VDC.

4. Precision AC Voltage Source with accuracy of ±2.5% at 60VAC.

5. Precision Voltage Meter with accuracy of ±0.0072% at 24V.

Enabling Calibration:

Install a fresh battery and allow 15 minutes for the CL532 to stabilize to ambient temperature. Remove the battery
cover and the six phillips head screws. While holding the CL532 face down in one hand, carefully separate the top
and bottom of the housing. Place the unit into calibration mode by shorting the calibration via labeled on the PCB
with tweezers while turning the CL532 on. Verify the CL53 2 is in Calibration mode by viewing the bottom Right of
the LCD for the word CAL.

Read mA Calibration:

Verify the CL532 is in Read mA mode by pressing the READ Button until mA Read appears in the bottom right
corner of the display.

Read mA:

LO Calibration:

HI Calibration:

1. Connect the CL532 terminals to a Current Source.

2. Slide the EZ-Check switch to the LO Position indicated by displaying a LO on the left side
of the display.

3. Set the Current Source to 0.000mA

4. Press the STORE/CLEAR button.

5. The display will flash STORED to confirm that the displayed value was stored.

1. Slide the EZ-Check switch to the HI Position indicated by displaying a HI on the left side
of the display.

2. Set the Current Source to 20.000mA.

3. Press the STORE/CLEAR button.

4. The display will flash STORED to confirm that the displayed value was stored.

B. CL532 Configuration Continued

HART® Compatibility Mode - ON/OFF (default)

The CL532 has a HART® compatibility mode. This mode is useful when the devices being powered
communicate using the HART® protocol. In this mode the CL532 connects a 250 W load resistor in series
with the output in both Source and Power Measure 2-Wire transmitter modes. This eliminates the
requirement of an external 250 W load resistor. This resistor is typically shown in connection diagrams and
manuals for HART® devices.

If HART® Compatibility Mode is ON, a 250 W load resistor is automatically switched in series with the
output in Source and Power Measure 2-Wire Transmitter modes. The output compliance with HART®
Compatibility Mode ON is 950 W at 20 mA.

If HART® Compatibility Mode is OFF there is no 250 W load resistor in series with the output. This will
increase the output compliance voltage to drive 1200 W at 20 mA.

EZ-Check HI/LO Readings ON/OFF (default)

If the EZ-Check HI/LO Readings option is ON, the highest and lowest readings will automatically be
saved in the HI and LO EZ-Check positions.

If this option is OFF the HI and LO positions will show the current reading.

Loop Diagnostic ON (default)/OFF

Loop Diagnostic may be turned off to prevent entry into diagnostic mode. This may make the CL532
simpler to operate by eliminating accidental entry into diagnostic mode.

Factory Reset ON/OFF (default)

If Factory Reset is ON, the unit will restore all factory defaults when the CL532 is turned OFF and back
ON. This will reset any changes made in the CL532 Configuration options, returning the unit to its simplest
factory configuration.

C. EZ-Dial Knob

Adjust the output up and down with the EZ-Dial knob. The increment is 0.001 mA (or 0.01 % if display
units are % of 4-20 mA.) Press while turning to adjust 100X faster  0.100 mA (or 1.00 %.)

D. EZ-Check Switch

The EZ-Check switch has three positions -- high, set, and low. Its position is shown at the left edge of
the display with HI and LO indicators. Use of the EZ-Check switch depends on mode:

Source Modes:

Slide the EZ-Check switch to the HI and LO positions to recall the settings stored in those
positions. While in the HI and LO positions, dial the EZ-Dial knob to change the display. Press
STORE/CLEAR to save new settings in the HI and LO positions. The display will flash STORED to
confirm.

Hint: For faster calibrations, the position of the switch can be felt. This feature allows continuous
monitoring of the device being calibrated without looking back at the CL532 display. This is also useful in
poor lighting or under difficult operating conditions.

Read Modes:

In read modes, the CL532 calibrator records the maximum and minimum readings observed in
each mode. Slide the EZ-Check switch to the HI and LO positions to display the readings. Press
STORE/CLEAR to clear the readings. The display will flash CLEARED to confirm.

By default, the CL532 has EZ-Check HI/LO Readings OFF. Refer to CL532 Configuration, section B.

CL532 Operating Instructions

CL532 Specifications

E. EZ-Step Pushbutton/ Manual Step

The EZ-Step pushbutton is a feature only in source modes.

Press and hold the EZ-Step pushbutton for less than one second to cause the output to step up or down
by the EZ-Step size.

The EZ-Step direction is indicated on the display ( or ). Press the EZ-Dial knob to change the
step direction.

Stepping and auto step/ramp limits are defined by the EZ-Check HI and LO settings. The step direction
changes when a limit is reached.

The step size is computed as the difference between the EZ-Check HI and the EZ-Check LO divided by
the number of steps. See section H.

By default, the CL532 has EZ-Step OFF. Refer to CL532 Configuration, section B.

F. A u t o Step/Ramp

Press the EZ-Step pushbutton for more than one second to activate auto step/ramp mode. The CL532
will automatically step by the selected EZ-Step size and time. Press the EZ-Step pushbutton again to
deactivate auto step/ramp mode.

The EZ-Step direction is indicated on the display ( or ). Press the EZ-Dial knob to change the
step direction. The step direction can be changed while automatically stepping/ramping.

Stepping and auto step/ramp limits are defined by the EZ-Check HI and LO settings. The step direction
changes when a limit is reached.

Figure 1 shows how the Step/Ramp Parameters are used to configure automatic stepping/ramping.

Figure 1

24

20

16

12

mA

8

4

0

123456789101112131415

Note: The CL532s ability to detect overload/undervoltage conditions may be limited by the rate of change
in the output when using automatic stepping/ramping. Turn auto step/ramp off while connecting or
disconnecting the CL532.

ramp
time

soak time

step size = (EZ-Step HI - EZ-Step LO) ÷ # of steps

time

step time = ramp time ÷ # of steps

G. Quick Reference Bar Graph

The Quick Reference Bar Graph indicates the input and output level on the CL532 in % of 4-20 mA with
1% resolution.

General Specifications:

(Unless otherwise indicated all specifications are rated from a nominal 23 °C, 70 % RH for 1 year from calibration)

Operating Temperature Range -20 to 60 °C (-5 to 140 °F)

Storage Temperature Range -30 to 60 °C (-22 to 140 °F)

Relative Humidity Range

Size

Weight 12.0 oz (340 grams)

Battery 9V Alkaline

Miscellaneous Low battery indication with nominal 1 hour of operation left

Common Specifications for all Current Modes:

Ranges 0.000 to 24.000 mA, -25.00 to 125.00% of 4-20 mA

Accuracy

Temperature Effect

Resolution(s) 0.001 mA and 0.01 %

Source/Power and Measure 2-Wire Transmitter S pecifications:

Loop Compliance Voltage

Loop Drive Capability 1200W at 20 mA for entire battery life, 950W w/HART

Miscellaneous Open loop or out of compliance conditions are indicated by appropriate error display

Read mA Specifications:

Voltage Burden

Overload/Current Limit Protection

Battery Life

2-Wire Transmitter Simulation Specifications:

Voltage Burden

Overload/Current Limit Protection

Loop Voltage Limits 2-60 VDC

Miscellaneous Open loop or out of compliance conditions are indicated by appropriate error display

10% RH 90% (0 to 35 °C), Non-condensing

10% RH 70% (35 to 60 °C), Non-condensing

7.00 X 3.30 X 2.21 inches (177.8 x 83.8 x 56.1mm)

Optional 120 VAC 50/60 Hz AC adaptor available

Over-voltage protection to 120 Vrms (rated for 30 seconds) or 240 Vrms (rated for 15

seconds)

Bar graph display with 1% resolution of 4-20 mA signal scale

High contrast graphic liquid crystal display with 0.45 (11.4 mm) high digits

± (0.012 % of reading + 0.002 mA)

± 50 ppm/°C of range

24 Volts

Battery life in:

Source mode 18 hrs at 12mA typical (HART

Power measure 10 hrs at 12mA typical

®

protocol mode is a selectable option at turn on. HART® protocol mode places a 250W

HART

resistor in series with the output

Selectable EZ-Step(s) for Source Mode/2-Wire Transmitter Simulation:

2 to 16 selectable step settings

Step size is determined by the selected high & low ranges

Selectable time settings for stepping and soak:

STEP: 5 to 900 seconds SOAK: 0 to 900 seconds

2V at 20 mA

nominal 24 mA

typical 40 Hours

2 V at 20 mA

nominal 24 mA

Battery life 40 hour typical

Selectable EZ-Step(s) for Source Mode/2-Wire Transmitter Simulation:

2 to 16 selectable step settings

Step size is determined by the selected high & low ranges

Selectable time settings for stepping and soak:

STEP: 5 to 900 seconds SOAK: 0 to 900 seconds

®

disabled)

®

mode enabled

CL532 Operating Instructions

CL532 Operating Instructions

J. Modes of Operation

Source Milliamp

Transmitter Input

Connect the CL532 directly to 4-20 mA
receiver equipment, alarms, panel meters,
etc. Use the EZ-Dial Knob and EZ-Check
Switch to adjust loop current. The display
flashes HIGH W when the loop resistance is
too high or the leads are open.

2 Wire Transmitter Simulate

Substitute the CL532 for a 2 wire
transmitter. Use the EZ-Dial Knob and EZ­Check Switch to adjust loop current. At
least 2 volts of loop power is required, else
the display flashes CHECK LOOP SUPPLY.

(Sensor)
(Process Signal)
(Simulated Input)

Transmitter Input

(Sensor)
(Process Signal)
(Simulated Input)

+ IN - REF +OUT-

Typical

2-Wire

Transmitter

+ IN - REF +OUT-

Typical
2-Wire

Transmitter

0

16.0 01

HART

0

12.000

H. Manual Step and Auto Step/Ramp Parameter

To Change the EZ-Step Size:

1. Press and hold the SOURCE/STEP SIZE button for more than
¾ of a second.

Receiver

100

mA

SOURCE

CL532

100

mA

2 WIRE

SIM

CL532

Power Supply

0 to 60 VDC

Receiver

Power Supply

0 to 60 VDC

2. The display will flash EZ-STEP SIZE.

3. Turn the EZ-Dial knob to select from 2 to 16 steps between
the EZ-Check limits.

4.

Turn the EZ-Dial clockwise past 16 steps to select
continuous ramp mode.

5. Press the SOURCE/STEP SIZE button again to return to the
normal display.

Note: If the EZ-Step option is turned off, the display will flash EZ-STEP
OFF. Refer to CL532 Configuration, section B.

To Change the EZ-Step Time:

1.

Press and hold the UNITS/STEP TIME button for more than
¾ of a second.

2. The display will flash EZ-STEP TIME.

3. Turn the EZ-Dial knob to select from 5 to 900 second ramp
time. The time per step is calculated based on the selected EZ-Step
size.

4.

Press the SOURCE/STEP SIZE button to return to the normal
display.

To Change the Soak Time:

1.

Press and hold the READ/SOAK TIME button for more than
¾ of a second.

2. The display will flash SOAK TIME.

3. Turn the EZ-Dial knob to select from 0 to 900 second soak
time.

Note: A soak time of 0 defeats the soak period. The step time will be
used instead.

4.

Press the READ/SOAK TIME button again to return to the
normal display.

EZ-STEP SIZE

04.000mA to 20.000mA
04 steps

04.000mA per step

EZ-STEP TIME

04.000mA to 20.000mA

005s ramp

001.250s per step

EZ-STEP SOAK TIME

04.000mA to 20.000mA

005 soak

001.250s per step

Transmitter Input

(Sensor)
(Process Signal)
(Simulated Input)

+ IN - REF +OUT-

Typical

2-Wire

Transmitter

0

12.000

100

V

SOURCE

CL532

Source Volts

Receiver

Power Supply

0 to 60 VDC

The CL532 sources 0.000-24.000 volts. This
is useful for powering transmitters and
receiver equipment. Use the EZ-Dial Knob
and EZ-Check Switch to adjust output
voltage. The display flashes LOW W when
the output is overloaded.

To Change the EZ-Step

Direction:

1. Press and release the EZ-Dial knob without turning.

2.

The display will change to show the EZ-Step direction selected ( or ).

CL532 Operating Instructions

CL532 Operating Instructions

I. Loop Diagnostic

Press and hold the STORE/CLEAR/DIAGNOSTIC button for more than ¾ of a second to activate loop
diagnostic mode. This is available in each of the CL532s operating modes.

Read Modes:

LOOP DIAGNOSTIC

DC mA

Read Milliamps

Loop current is displayed.

Power and Measure 2-Wire Transmitter

Loop current, voltage, and resistance is displayed.

Read Volts

Voltage is displayed.

Source Modes:

The EZ-Dial knob, EZ-Check switch, and EZ-Step pushbutton
function normally when the loop diagnostic is activated.

Source Milliamps

Loop current, voltage, and resistance is displayed. The resistance is
highlighted if it exceeds the CL532s output capability (1200 W at 20
mA with HART® Compatibility disabled.)

12.34

AC V = 00.0

READ MA

DC mA DC V DCW

04.00 00.4 00100
leakage = 00.00mA

AC V = 00.0

POWER MEASURE DIAG

LOOP DIAGNOSTIC

DC V

11.9

AC V = 00.0

READ V

LOOP DIAGNOSTIC

DC mA DC V DCW

20.00 02.0 00100
AC V = 00.0

SOURCE MA

J. Modes of Operation

Read Milliamp

Connect the CL532 in series with the
process loop to monitor current.
Observe correct polarity. Current
limiting above 24.000 mA is indicated
by a flashing CURRENT LIMITED
display.

Transmitter Input

(Sensor)
(Process Signal)
(Simulated Input)

+ IN - REF +OUT-

Typical
2-Wire

Transmitter

Power and Measure 2 Wire Transmitter

0

100

mA

19.900

POWER

MEASURE

CL532

Transmitter Input

(Sensor)
(Process Signal)
(Simulated Input)

Receiver

Power Supply

0 to 60 VDC

The CL532 provides power to the process
loop while displaying output current. Use this
mode to test a transmitters ability to control
loop current. Current limiting above 24.000
mA is indicated by a flashing CURRENT
LIMITED display.

+ IN - REF +OUT-

Typical
2-Wire

Transmitter

0

04.003

Receiver

100

mA

READ

CL532

Power Supply

0 to 60 VDC

2-Wire Transmitter Simulate

Loop current is displayed. The CL532 automatically performs a test
every 7 seconds to compute the loop power supply voltage and loop
resistance. The CL532 requires approximately 2 volts across its
terminals to operate in 2 Wire Simulate mode. The voltage display is
highlighted if there is less than 2 volts present.

Source Volts

Loop current, voltage, and resistance is displayed. The resistance is
highlighted if it exceeds the CL532s output capability (20 mA into
1200 W with HART® Compatibility disabled.)

In all loop diagnostic modes, AC voltage is displayed. If more than 2 VAC is present on the CL532s
terminals, the display is highlighted to alert the user of a potential problem.

In all loop diagnostic modes, HART® activity is indicated with  HART DETECTED  . The symbols
flash on and off with the actual HART® messages.

LOOP DIAGNOSTIC

DC mA DC V DCW

12.00 24.0 00500
AC V = 00.0

2 WIRE SIM

LOOP DIAGNOSTIC

DC mA DC V DCW

00.00 24.0 00000
AC V = 00.0

SOURCE V

The CL532 measures +/- 30 VDC with 4X
overrange ability. The display flashes
OVERRANGE when the 30 volt limit is
exceeded. 0.001 volt resolution below 24.00
volts provides the ability to calibrate 1-5 volt
instrumentation.

Read Volts

Transmitter Input

(Sensor)
(Process Signal)
(Simulated Input)

+ IN - REF +OUT-

Typical
2-Wire

Transmitter

0

23.456

Receiver

V

READ

CL532

Power Supply

0 to 60 VDC