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Thermocouple, Millivolt and RTD Calibrator and Thermometer

Calibrator for Thermocouple and RTDs (PT100)
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C$2,793.70

Item# CL543B

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$2,793.70
5-9 C$2,654.02
10-24 C$2,598.14
25-49 C$2,486.39
50-99 C$2,430.52
100+ C$2,374.65

In stock

Lead Time (If not in stock): 5 weeks
Calibrator for Thermocouple and RTDs (PT100) CL543B CL543B
  • Calibrate Thermocouple Instruments to 0.1 and 0.01, °F and °C
  • Types J, K, T, E, R, S, B, N, G, C, D, L (J-DIN), (T-DIN) and P (Platinel): -13.000 to 80.000 mV
  • Calibrate RTD Instruments to 0.1 and 0.01, °F and °C
  • Pt 10, 50, 100, 200, 500 and 1000 (3850)

CL543B Model Options

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Type of Thermocouple Signals
Type of RTD signal
Type of Thermistor Signal
Accuracy Value
Communications Protocol
Battery Run Time
Additional Features


THERMOCOUPLE CONNECTIONS
Simulating or reading thermocouples requires the use of thermocouple or extension grade thermocouple wire. Plug thermocouple wires into the miniature thermocouple jack or place bare thermocouple wires onto the brass block under the screws.

The CL543B has two banana jacks (1+ and 2-) mounted in the top end of the housing. These are not temperature compensated and are to be used only for millivolt signals.

RTD CONNECTIONS
Simulating or reading RTDs uses copper wire. Plug 2-, 3- or 4-wires into the corresponding jacks on the calibrator. For RTD source the CL543B simulates the (+) RTD from jacks 1 and 4 and the (-) RTD from jacks 2 and 3. When reading an RTD sensor the CL543B uses patented circuitry to automatically detects if 2-, 3- or 4-wires are connected. This is helpful to troubleshoot sensor connections.

Specifications
Operating Temperature Range: -20 to 60°C (-5 to 140°F)
Storage Temperature Range: -30 to 60°C (-22 to 140°F)
Temperature Effect: ?±25 ppm/°C of range
Cold Junction Sensor: ?±0.01% °/° from ambient temperature (°C or °F)
Relative Humidity Range:
    10% ?RH ?90% (0 to 35°C), non-condensing
    10% ?RH ?70% (35 to 60°C), non-condensing
Normal Mode Rejection: 50/60 Hz, 50 dB
Common Mode Rejection: 50/60 Hz, 120 dB
Dimensions: 143 L x 76 W x 41 mm H (5.63 x 3 x 1.60")
Weight: 0.34 kg (12.1 oz) with boot and batteries
Batteries: Four “AA” alkaline 1.5V (LR6) (included), optional NiMh rechargeable battery kit [120 Vac (North America only); charger, 4 NiMh batteries, AC and DC cords
Battery Life: 50 hours, low battery indication with nominal 1 hour of operation left
Over-Voltage Protection: Up to 60 vrms (rated for 30 seconds), protection against misconnection
Alerts: Red LED displays OVERLOAD or out of range conditions
Display: High contrast graphic liquid crystal display, LED backlighting for use in low lit areas
Voltage Source
Ranges and Resolution: -13.000 to 80.000 mV and -13.0000 to 80.0000 mV
Accuracy: ±(0.008% of setting + 0.006 mV)
Source Current: ?10 mA
Output Impedance: <0.3?
RMS Noise: ?±0.0005 mV from 0.1 to 10 Hz
Short Circuit Duration: Infinite Voltage Read
Ranges and Resolution: -13.000 to 80.000 mV and -13.0000 to 80.0000 mV
Accuracy: ±(0.008% of reading + 0.006 mV)
Input resistance: ?10 M? Thermocouple Source
Accuracy: ±(0.008% of setting + 0.006 mV)
Cold Junction Compensation: ±0.05°C (±0.09°F); thermistor traceable to NIST for 11 years
Output Impedance: <0.3?
Source Current: >10 mA (drives 80 mV into 10?)
RMS Noise: ?±0.0005 mV from 0.1 to 10 Hz
Thermocouple Read
Accuracy: ±(0.008% of reading + 0.006 mV)
Cold Junction Compensation: ±0.09°F (±0.05°C); thermistor traceable to NIST for 11 years
Input Impedance: >10 M?
Open Thermocouple Threshold: 10,000? nominal
Pulse: <10 microamp pulse for 300 milliseconds
RTD and O Source
3- and 4-Wire Accuracy:
    From 1 to 10.2 mA External Excitation Current: ±(0.015% of setting + 0.05?)
    Below 1 mA of External Excitation Current: Add (0.025 mV/mA excitation current)
2-Wire Accuracy: Add 0.1? to 3-wire and 4-wire accuracy
Resistance Ranges:
    400? Range: 0.00 to 401.00 and 0.000 to 401.000
    4000? Range: 0.0 to 4010.0 and 0.00 to 4010.00
RMS Noise:
    400? Range: ?±0.005? from 0.1 to 10 Hz
    4000? Range: ?±0.05? from 0.1 to 10 Hz
Allowable Excitation Current Range:
    400? Range: 10.2 mA max; steady or pulsed/intermittent
    4000? Range: 1 mA max; steady or pulsed/intermittent
Pulsed Excitation Current Compatibility: DC to 0.01 second pulse width, 0.025 mV, mA excitation current
RTD and Ohms Read
Resistance Ranges:
    400? Range: 0.00 to 401.00 and 0.000 to 401.000
    4000? Range: 0.0 to 4010.0 and 0.00 to 4010.00
Accuracy: ±(0.015% of reading + 0.05?)
Excitation Current: 0.9 mA to 401?, 0.4 mA to 4010? (nominal)
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Rated 4 out of 5 by from Works! This device is a resource used by many within our company. It has worked properly when used. Our company monitors the large reciprocating compressors in different Plants around the US and Canada. We lost one we had previously so buying a new one shows it has been a great tool.
Date published: 2023-02-09
Rated 5 out of 5 by from Themocouple calibrator I bought this calibrator earlier this summer. It is easy to use. You easily go between the read and simulation functions. I use it a lot for troubleshooting temperature issues on various pieces of equipment.
Date published: 2018-11-07
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Does the CJC accuracy affect the uncertainty calculations above the stated accuracy of 0.2 C? Or is the CJC accuracy part of that &quot;accuracy&quot; value? Could you provide the &quot;Type B&quot; Uncertainty for this meter?

Asked by: Erik
Hi Erik Thank you for the inquiry. CJC accuracy is in addition to thermocouple accuracy. Need to add the two for total measure or simulate accuracy. Type B accuracy is listed in manual. Sorry cannot calculate the uncertainty for you. Best regards OMEGA
Answered by: NorwalkAE
Date published: 2020-07-14

I am looking to buy one and need to know how much and how long it will take to get it with CAL-3 calibration certificate

Asked by: Marco KAMAN
Hi Marco Thank you for the inquiry. For current price and lead time please email request to TEMP@OMEGA.COM. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2021-04-23
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