This thermocouple and RTD calibrator automates temperature calibration for 13 thermocouple types and RTD instruments at ±(0.008% reading + 0.006 mV). It verifies resistance from 10 to 1000 Ω and cold junction. It suits high-accuracy thermocouple and RTD instrument calibration.
This thermocouple and RTD calibrator automates temperature calibration for 13 thermocouple types and RTD instruments at ±(0.008% reading + 0.006 mV). It verifies resistance from 10 to 1000 Ω and cold junction. It suits high-accuracy thermocouple and RTD instrument calibration.
High-accuracy automated temperature calibrator for thermocouple and RTD instruments. It calibrates 13 thermocouple types and RTD instruments, and verifies resistance and cold junction.
Features
Applications
| Series | CL543B |
| Type | thermocouple and RTD calibrator |
| Type | Thermocouple and RTD calibrator |
| Thermocouple types | K, J, E, T, R, S, B, N, G, C, D, L, P (13 types) |
| Resistance range | 10 to 1000 Ω |
| Thermocouple accuracy | ±(0.008% reading + 0.006 mV) |
| RTD accuracy | ±(0.015% reading + 0.05 Ω) |
| Battery life | 50 hours |
| RTD types | Pt 10, 50, 100, 200, 500 and 1000 Ω (3850); Pt 100 Ω (alpha = 3902, 3916, 3926); Cu 10 and 50 Ω and Ni 120 Ω |
| Resolution | To 0.01, °F and °C; accurate to 0.2° |
| Thermocouple Source Accuracy | ±(0.008% of setting + 0.006 mV) |
| Thermocouple Source Cold Junction Compensation | ±0.05°C (±0.09°F); thermistor traceable to NIST for 11 years |
| Thermocouple Source Output Impedance | <0.3 Ω |
| Thermocouple Source Current | >10 mA (drives 80 mV into 10 Ω) |
| Thermocouple Source RMS Noise | ≤±0.0005 mV from 0.1 to 10 Hz |
| Thermocouple Read Accuracy | ±(0.008% of reading + 0.006 mV) |
| Thermocouple Read Cold Junction Compensation | ±0.09°F (±0.05°C); thermistor traceable to NIST for 11 years |
| Thermocouple Read Input Impedance | >10 MΩ |
| Open Thermocouple Threshold | 10,000 Ω nominal; Pulse: <10 microamp pulse for 300 milliseconds |
| 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 Ω; 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 MΩ |
| RTD and Ω Source Accuracy (3- and 4-Wire) | From 1 to 10.2 mA External Excitation Current: ±(0.015% of setting + 0.05 Ω); Below 1 mA of External Excitation Current: Add (0.025 mV/mA excitation current); 2-Wire Accuracy: Add 0.1 Ω to 3-wire and 4-wire accuracy |
| RTD and Ω Source Resistance Ranges | 400 Ω Range: 0.00 to 401.00 and 0.000 to 401.000; 4000 Ω Range: 0.0 to 4010.0 and 0.00 to 4010.00 |
| RTD and Ohms Read Accuracy (3- and 4-Wire) | ±(0.015% of reading + 0.05 Ω); Resistance Ranges: 400 Ω Range: 0.00 to 401.00 and 0.000 to 401.000; 4000 Ω Range: 0.0 to 4010.0 and 0.00 to 4010.00 |
| RTD Read Excitation Current | 0.9 mA to 401 Ω, 0.4 mA to 4010 Ω (nominal) |
| RTD Read RMS Noise | 400 Ω Range: ≤±0.005 Ω from 0.1 to 10 Hz; 4000 Ω Range: ≤±0.05 Ω from 0.1 to 10 Hz |
| Allowable Excitation Current Range | 400 Ω Range: 10.2 mA maximum; steady or pulsed/intermittent; 4000 Ω Range: 1 mA maximum; steady or pulsed/intermittent; Pulsed Excitation Current Compatibility: DC to 0.01 second pulse width, 0.025 mV, mA excitation current |
| RTD Wire Connection | Automatic Detection of 2-, 3- or 4-Wire Connections; indicates when individual wire connections are open |
| Temperature Effect | ≤±25 ppm/°C of range |
| Cold Junction Sensor | ≤±0.01% °/° from ambient temperature (°C or °F); accurate to 0.05°C; NIST Traceable Cold Junction Sensor in Isothermal Block |
| Normal Mode Rejection | 50/60 Hz, 50 dB |
| Common Mode Rejection | 50/60 Hz, 120 dB |
| Standard | Meets or Exceeds the Requirement of AMS 2750 as both a Secondary Standard Instrument and as a Field Test Instrument |
| Display | High contrast graphic liquid crystal display, LED backlighting for use in low lit areas |
| Alerts | Red LED displays OVERLOAD or out of range conditions |
| Operating Temperature Range | -5 to 140°F (-20 to 60°C) |
| Storage Temperature Range | -22 to 140°F (-30 to 60°C) |
| Relative Humidity Range | 10% ≤RH ≤90% (32 to 95°F (0 to 35°C)), non-condensing; 10% ≤RH ≤70% (95 to 140°F (35 to 60°C)), non-condensing |
| Batteries | Four "AA" alkaline 1.5 V (LR6) (included), optional NiMh rechargeable battery kit [120 V AC (North America only); charger, 4 NiMh batteries, AC and DC cords] |
| Over-Voltage Protection | Up to 60 vrms (rated for 30 seconds), protection against misconnection |
| Included | 4" (10.2 cm)AA" alkaline batteries, NIST Cert (no points), rubber boot, deluxe hands free carrying case, mA/V test leads, 1 red and 1 black lead with banana plugs and alligator clips, RTD wire kit, 2 red and 2 black leads with banana plugs and spade lugs, and operator's manual |
| Dimensions | 143 L x 76 W x 1.61" (41 mm) H (5.63 x 3 x 1.60" (14.3 x 7.6 x 4.1 cm)) |
| Weight | 12.1 oz (0.34 kg) with boot and batteries |
| Series | CL543B |
| Type | thermocouple and RTD calibrator |
| Type | Thermocouple and RTD calibrator |
| Thermocouple types | K, J, E, T, R, S, B, N, G, C, D, L, P (13 types) |
| Resistance range | 10 to 1000 Ω |
| Thermocouple accuracy | ±(0.008% reading + 0.006 mV) |
| RTD accuracy | ±(0.015% reading + 0.05 Ω) |
| Battery life | 50 hours |
| RTD types | Pt 10, 50, 100, 200, 500 and 1000 Ω (3850); Pt 100 Ω (alpha = 3902, 3916, 3926); Cu 10 and 50 Ω and Ni 120 Ω |
| Resolution | To 0.01, °F and °C; accurate to 0.2° |
| Thermocouple Source Accuracy | ±(0.008% of setting + 0.006 mV) |
| Thermocouple Source Cold Junction Compensation | ±0.05°C (±0.09°F); thermistor traceable to NIST for 11 years |
| Thermocouple Source Output Impedance | <0.3 Ω |
| Thermocouple Source Current | >10 mA (drives 80 mV into 10 Ω) |
| Thermocouple Source RMS Noise | ≤±0.0005 mV from 0.1 to 10 Hz |
| Thermocouple Read Accuracy | ±(0.008% of reading + 0.006 mV) |
| Thermocouple Read Cold Junction Compensation | ±0.09°F (±0.05°C); thermistor traceable to NIST for 11 years |
| Thermocouple Read Input Impedance | >10 MΩ |
| Open Thermocouple Threshold | 10,000 Ω nominal; Pulse: <10 microamp pulse for 300 milliseconds |
| 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 Ω; 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 MΩ |
| RTD and Ω Source Accuracy (3- and 4-Wire) | From 1 to 10.2 mA External Excitation Current: ±(0.015% of setting + 0.05 Ω); Below 1 mA of External Excitation Current: Add (0.025 mV/mA excitation current); 2-Wire Accuracy: Add 0.1 Ω to 3-wire and 4-wire accuracy |
| RTD and Ω Source Resistance Ranges | 400 Ω Range: 0.00 to 401.00 and 0.000 to 401.000; 4000 Ω Range: 0.0 to 4010.0 and 0.00 to 4010.00 |
| RTD and Ohms Read Accuracy (3- and 4-Wire) | ±(0.015% of reading + 0.05 Ω); Resistance Ranges: 400 Ω Range: 0.00 to 401.00 and 0.000 to 401.000; 4000 Ω Range: 0.0 to 4010.0 and 0.00 to 4010.00 |
| RTD Read Excitation Current | 0.9 mA to 401 Ω, 0.4 mA to 4010 Ω (nominal) |
| RTD Read RMS Noise | 400 Ω Range: ≤±0.005 Ω from 0.1 to 10 Hz; 4000 Ω Range: ≤±0.05 Ω from 0.1 to 10 Hz |
| Allowable Excitation Current Range | 400 Ω Range: 10.2 mA maximum; steady or pulsed/intermittent; 4000 Ω Range: 1 mA maximum; steady or pulsed/intermittent; Pulsed Excitation Current Compatibility: DC to 0.01 second pulse width, 0.025 mV, mA excitation current |
| RTD Wire Connection | Automatic Detection of 2-, 3- or 4-Wire Connections; indicates when individual wire connections are open |
| Temperature Effect | ≤±25 ppm/°C of range |
| Cold Junction Sensor | ≤±0.01% °/° from ambient temperature (°C or °F); accurate to 0.05°C; NIST Traceable Cold Junction Sensor in Isothermal Block |
| Normal Mode Rejection | 50/60 Hz, 50 dB |
| Common Mode Rejection | 50/60 Hz, 120 dB |
| Standard | Meets or Exceeds the Requirement of AMS 2750 as both a Secondary Standard Instrument and as a Field Test Instrument |
| Display | High contrast graphic liquid crystal display, LED backlighting for use in low lit areas |
| Alerts | Red LED displays OVERLOAD or out of range conditions |
| Operating Temperature Range | -5 to 140°F (-20 to 60°C) |
| Storage Temperature Range | -22 to 140°F (-30 to 60°C) |
| Relative Humidity Range | 10% ≤RH ≤90% (32 to 95°F (0 to 35°C)), non-condensing; 10% ≤RH ≤70% (95 to 140°F (35 to 60°C)), non-condensing |
| Batteries | Four "AA" alkaline 1.5 V (LR6) (included), optional NiMh rechargeable battery kit [120 V AC (North America only); charger, 4 NiMh batteries, AC and DC cords] |
| Over-Voltage Protection | Up to 60 vrms (rated for 30 seconds), protection against misconnection |
| Included | 4" (10.2 cm)AA" alkaline batteries, NIST Cert (no points), rubber boot, deluxe hands free carrying case, mA/V test leads, 1 red and 1 black lead with banana plugs and alligator clips, RTD wire kit, 2 red and 2 black leads with banana plugs and spade lugs, and operator's manual |
| Dimensions | 143 L x 76 W x 1.61" (41 mm) H (5.63 x 3 x 1.60" (14.3 x 7.6 x 4.1 cm)) |
| Weight | 12.1 oz (0.34 kg) with boot and batteries |
