Omega CL-300 Owner's manual

CL-300, CL-301, CL-302, CL-303

Portable Simulators

e-mail: [email protected]

For latest product manuals:

www.omegamanual.info

Shop online at

omega.com

SM

User’s Guide

The information contained in this document is believed to be correct, but OMEGA

accepts no liability for any errors it contains, and reserves the right to alter

specifications without notice.

Servicing North America:

U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

Stamford, CT 06907-0047 USA

Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only)

Engineering Service: 1-800-872-9436 (USA & Canada only)

Tel: (203) 359-1660 Fax: (203) 359-770

e-mail: [email protected]

For Other Locations Visit omega.com/worldwide

omega.com [email protected]

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.

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.

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 WARRANTY 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.

FOR NON-WARRANTY REPAIRS,

consult

OMEGA for current repair charges. Have

the following information available BEFORE

contacting OMEGA:

1. Purchase Order number to cover the COST

of the repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specific

problems relative to the product.

Notes

Table of Contents

Section Page

Model CL-300 Portable

Thermocouple Source..........................................11

Model CL-301 Portable RTD Simulator.................12

Model CL-302 Portable

Transmitter Simulator..........................................21

Model CL-303 Portable

mA Source/2-Wire Simulator..............................30

i

Table of Contents

Model CL-300 Portable Thermocouple Source

Section Page

Section 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Section 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . .3

2.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Section 3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.1 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Section 4 Service Information . . . . . . . . . . . . . . . . . . .5

4.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4.2 Equipment Required for Calibration . . . . . . . . . . . . . . . . . . 5

4.3 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Section 5 Specifications . . . . . . . . . . . . . . . . . . . . . . .9

ii

Section 1 Introduction

1.1 Description

The OMEGA

®

Model CL-300 Thermocouple Source provides 22 precise

temperature equivalent millivolt signals to transmitters, recorders,

controllers, alarms, data acquisition, and computer systems. Model

CL-300 is cold-junction compensated for ambient temperature

variations and provides a thermocouple connector output. Cables are

available in the desired length and terminal types to exactly duplicate

the thermocouples in the system being tested. Conformity to the

particular thermocouple vs millivolt curve is in accordance with the

latest ASTM and IPTS standards for exact temperature simulation.

Linear millivolt models are also available.

Thermocouple types E, J, K, and T are available in both ˚F and ˚C.

Table 1-1 lists the standard ranges. Resolution is 25˚, 50˚, or 100˚

corresponding to full scale output of 500˚, 1000˚, and 2100˚ respectively.

Dual ranges, with an individual “ON” position for each range, allow

quick, easy settings for any output. Calibrated accuracy is ±0.1% of

span ±1 degree. For negative temperatures, add ± 2 degrees.

Two internal AAcells provide power for approximately one year of

everyday use. A front panel LED pulses every time the unit is turned

on to indicate proper battery voltage.

1

Table 1-1

Model CL-300 Standard Ranges

2

3

1.2 Features

• Calibrate and Troubleshoot Temperature Systems

• Simulates Thermocouples J, K, E, T, R, S, or mV Source

• Choice of Cable Length and Type

• Twenty-two Precise Test Points

• Portable, Long Battery Life

• Simple to Use, Inexpensive to Own

Section 2 Installation

2.1 Unpacking

Remove the Packing List to check off actual equipment received.

If you have any questions about the shipment, please call OMEGA’s

Customer Service Department.

Upon receipt of shipment, inspect the container for any signs of

damage in transit. Take particular note of any evidence of rough

handling in transit. Immediately report any damage to the shipping

agent.

NOTE

The carrier will not honor any claims unless all shipping material

is saved for their examination. After examining and removing contents,

save packing material and carton in the event shipment is necessary.

Section 3 Operation

3.1 Operating Instructions

Select the Model CL-300 for the correct thermocouple type, the desired

temperature scale (F or C), and range, the ordered lead type(s).

Connect the Thermocouple Source to the thermocouple input terminals

of the instrument or system to be tested.

Cold-junction compensation and instantaneous automatic

standardization and built into the instrument.

Set the temperature selection switch to the desired temperature and

slide the “ON” switch left or right to the selected scale. The battery

check LED will pulse once indicating proper battery voltage. If no

pulse is seen, the batteries should be replaced with two AA cells.

Alkaline cells are preferred for longest life and widest operating

temperature range.

End point calibration temperatures of the instrument are then selected

on the Model CL-300 and any required adjustments are made.

Intermediate points may then be selected to verify instrument linearity

or check critical points.

4

Section 4 Service Information

4.1 Maintenance

The OMEGA CL-300 Thermocouple Source requires little servicing.

Should measurement inaccuracies be discovered, perform the

adjustment and calibration procedure to recalibrate the instrument.

4.2 Equipment Required for Calibration

Digital thermometer, ±0.5˚ accuracy with 0.1˚ resolution or equivalent.

Digital voltmeter, 0.05% accuracy, 10-microvolt resolution or

equivalent.

The recommended technique for calibrating a Model CL-300 requires

two meters. The digital thermometer is used to calibrate the output.

The digital voltmeter is needed to calibrate the built-in cold-junction

compensation.

4.3 Calibration Procedure

It is suggested that each time a unit is recalibrated, fresh AAbatteries

(MN-1500-2) should be substituted for used batteries.

1 Switch the unit to each “ON” positions, making sure that the

battery check LED flashes.

2 Connect the digital thermometer, using the proper type thermo-

couple wire, directly to the exposed ends of the Model CL-300’s

output wires.

5

3. Connect the DVM to calibrate the cold-junction compensation as

follows: The meter’s positive input is connected to the negative

output of the Model CL-300 and the negative lead of the meter is

connected to the outermost lead. Resistor R17 at the opposite end of

the board. See Figure 4-1.

4. Before the cold-junction compensation can be adjusted, the ambient

temperature of the Model CL-300 must be obtained. For highest

accuracy, this is done by taking a reading on the meter that is

already connected to the thermocouple output leads. With the

range/power switch in the center “OFF” position, the meter will

read the temperature at the internal Model CL-300 terminals.

5. To set the cold-junction compensation, move the range/power

switch to the right-hand “ON” position, and the temperature

selector to the highest output position.

6. The compensation potentiometer is then adjusted to the value

shown in Table 4-1. The span (highest mV output) of the unit is now

adjusted by means of the span potentiometer for the highest

temperature reading of the unit being calibrated. See figure 4-1.

7. The cold-junction compensation should again be checked, and if

readjusted, the span should be rechecked.

8. There are two separate zero (lowest mV output) adjustments. With

the range/power switch still in the right-hand “ON” position, move

the temperature selector switch to the lowest output position. The

right-hand zero is then adjusted by means of the right-hand zero

potentiometer. See Figure 4-1.

6

19. To calibrate the left-hand zero, select the left-hand “ON” position.

For the highest accuracy, the left-hand zero should be calibrated at

the second lowest setting (+25˚ on 500˚ units; +50˚ on 1000˚ units,

+200˚ on 2100˚ units). The left-hand zero is then adjusted by means

of the left-hand zero potentiometer. (See Figure 4-1).

10. Recheck the span at the highest output. When the span and both

zeros have been calibrated, check the other output positions to

assure that the Model CL-300 is operating properly.

The allowable variation in 2100˚ and 3100˚ units is ±3˚. For 1000˚ units,

it is ±2˚. For the 500˚ units, the allowable tolerance is ±1.5˚. Add 1˚ to

tolerances for negative temperatures.

Table 4-1

Cold Junction Compensation Set Points

Degrees C

20

21

22

23

24

25

26

27

28

29

30

Type E

18.151

18.211

18.272

18.333

18.394

18.455

18.516

18.577

18.638

18.699

18.760

Type J

15.409

15.460

15.512

15.564

15.615

15.667

15.719

15.770

15.822

15.874

15.926

Type K

12.071

12.111

12.152

12.192

12.233

12.273

12.314

12.354

12.395

12.435

12.476

Type T

12.130

12.170

12.211

12.252

12.292

12.333

12.374

12.414

12.455

12.496

12.537

Type R & S

1.788

1.794

1.800

1.806

1.812

1.818

1.824

1.830

1.836

1.842

1.848

7

8

Figure 4-1. Calibration Hook-Up, Model CL-300

Section 5 Specifications CL-300

Batteries: Two “AA” alkaline cells provide

approximately one year of use

Battery Indicator: LED light pulse at turn-on in either

range

Accuracy: ±0.1% of span ±1˚. For negative

temperatures, add ±2˚.

Cold-junction Compensation: Built-in for specified thermocouple

type

Cold-junction Temperature

Effect: Within ±0.25 degrees at 75˚F (20˚C)

±0.025 degrees/degree change in

ambient

Operating Ambient

Temperature: -10˚ to +130˚F (-25˚ to +55˚C)

Ambient Temperature Effect: Zero included in cold-junction effect.

Span: ±0.01% of span/degree

Storage Temperature Limits: -40˚ to +160˚F (-40˚ to +70˚C)

Output Impedance: Fixed, 50 ohms nominal

Dimensions: H: 4" (101 mm) x W: 2

1

/

8

" (54 mm)

x D: 2

1

/

4

" (57 mm)

Weight: 6 oz. (0.15 kg)

9

10

Schematic–OMEGA Model CL-300

Table of Contents

Model CL-301 Portable RTD Simulator

Section Page

Section 1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . 12

1.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.2 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Section 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Section 3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1 Operating Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Section 4 Service Information. . . . . . . . . . . . . . . . . . . 16

4.1 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2 Equipment Required for Calibration. . . . . . . . . . . . . . . . . . 16

4.3 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Section 5 Specifications . . . . . . . . . . . . . . . . . . . . . . . 19

11

Section 1 Introduction

1.1 Description

The OMEGA

®

Model CL-301 Platinum RTD Simulator provides eleven

precise temperatures for inputs to transmitters, recorders, controllers,

alarms, data acquisition, and computer systems. Model CL-301 allows

2, 3, or 4-wire connections. Conformity to the particular RTD curve is in

accordance with the latest DIN 43760 standard.

Calibrations are available in both ˚F and ˚C and standard ranges are

listed in Table 1-1. Other ranges and curves are available as options.

Resolution is 25˚, 50˚, or 100˚, corresponding to the full scale output of

250˚, 500˚, and 1000˚ respectively.

Positive switch selection allows quick, easy settings for any output.

Calibrated accuracy is ±0.05% of span ±0.25˚.

1.2 Features

• Calibrate and Troubleshoot 2, 3, or 4-wire RTD systems

• Simulates 100 ohm RTD, alpha = .00385

* Choice of Output Terminal

• Eleven Precise Test Points

• Portable, No Battery or Power Required

• Simple to Use, Inexpensive to Own

12

Table 1-1

Model CL-301 Standard Ranges

Section 2 Installation

2.1 Unpacking

Remove the Packing List to check off actual equipment received. If you

have any questions about the shipment, please call OMEGA’s

Customer Service Department.

Upon receipt of shipment, inspect the container for any signs of

damage in transit. Take particular note of any evidence of rough

handling in transit. Immediately report any damage to the shipping

agent.

13

14

Section 3 Operation

3.1 Operating Instructions

Select the particular OMEGAModel CL-301 for the desired

temperature scale (F or C), and appropriate temperature range. Then

choose the cable type (2, 3, or 4-wire) that is equivalent to the RTD

you are simulating . See Figure 3-1.

Connect the RTD Simulator leads to the input terminals of the

instrument or system to be tested. Typically the CL-301 might feed a

recording system, a controller, a datalogger, and a computer interface.

Set the temperature selection switch on the CL-301 to the desired

temperature. End point calibration temperatures of the instrument are

then selected on the CL-301 and any required adjustments are made.

Intermediate points on the CL-301 may then be selected to verify

instrument linearity or to check critical points.

NOTE

The carrier will not honor any claims unless all shipping material

is saved for their examination. After examining and removing contents,

save packing material and carton in the event shipment is necessary.

Page is loading ...

Omega CL-300 Owner's manual

Omega CL-300 Owner's manual

Related papers

Other documents