
Extech PRC20 Thermocouple Calibrator
Source and measure 8 thermocouple type devices (J, K, T, E, C, R, S and N) with one meter that provides precision output displayed as ℃/°F or mV.
Applications Include:
- Lab and field calibration and verification operations of sensors, thermocouple probes, controllers, panel meters & testing tools.
- Engineering research and design.
- Manufacturing and test engineering.
- HVAC.
- Temperature control process troubleshooting.
Features
- Palm-sized double molded housing and large dot-matrix digital backlit LCD with thermocouple type indication.
- High accuracy calibration function simulates precision thermocouple outputs for use in calibrating thermometers, transmitters, controllers or recorders.
- Displays output in terms of millivolts or temperature based on thermocouple tables.
- Standard mini-thermocouple input.
- Large battery bank for extended work cycle.
- Up to five user adjustable calibration presets.
- External power adapter for continuous work cycle.
Specifications
| Type | Range | Basic Accuracy |
|---|---|---|
| Type J | -58 to 1832°F (-50 to 1000℃) | 0.05% rdg ±1° |
| Type K | -58 to 2498°F (-50 to 1370℃) | 0.05% rdg ±1° |
| Type T | -184 to 752°F (-120 to 400℃) | 0.05% rdg ±1° |
| Type E | -58 to 1382°F (-50 to 750℃) | 0.05% rdg ±1° |
| Type C | 32 to 3182°F (0 to 1750℃) | 0.05% rdg ±1° |
| Type R/S | 32 to 3182°F (0 to 1750℃) | 0.05% rdg ±1° |
| Type N | -58 to 2372°F (-50 to 1300℃) | 0.05% rdg ±1° |
| Voltage | -10.00mV to +60.00mV | 10μV +1d |
| Resolution | 0.1° (up to 999.9) or 1° (over 999.9°) for J, K, T, E; 1° for R, N; 0.5° for C, S | |
| Input Impedance | 10 MΩ | |
| Sampling Time | 4 times/second | |
| Meter Dimensions (L×W×H) | 6.3″ × 3.2″ × 1.7″ (159 × 80 × 44mm) | |
| Meter Weight | 8oz (225g) – excluding battery weight | |
Ordering Information
PRC20 – Thermocouple Calibrator
PRC20-NIST – PRC20 with Certificate of Calibration Traceable to NIST
Included Accessories: Thermocouple calibration cable with subminiature connectors, standard calibration cable, 100V–240V AC universal adaptor with 4 plugs, 6 × 1.5V AA batteries, and hard carrying case.




