OMEGA CL543B-series Thermocouple, Millivolt and RTD Calibrator and Thermometer

Description of OMEGA CL543B

Calibrator for Thermocouple and RTDs (PT100)

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.

Technical specifications of OMEGA CL543B

• 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)

How to buy OMEGA CL543B