The CL300A multifunction thermocouple/mV calibrator combines high accuracy with ease of use. Its accuracy of ±0.3°C (±0.5ºF) includes all errors, at resolutions of 0.01°C or °F in measure mode and 0.1°C or °F in source mode. Features include min/max recall in measure mode, 3 setpoints per thermocouple type, a large knob for decade control of the output in source mode, and compatibility with both bare-wire and miniplug inputs.

SPECIFICATIONS 
(1 Year at 23 ±5°C; % of Reading Unless Otherwise Noted)
Output Voltage 
Range: -10 to 75 mV 
Resolution: 1 µV 
Accuracy: ±0.007% rdg, ±10 µV 
Output Impedance: 1 Ω 
Input Voltage
Range: -10 to 75 mV/thermocouple source/measure 
Thermocouple Types: J, K, T, E, R, S, B, L, U, C 
Resolution 
Source: ±0.1°C or °F 
Measure: ±0.01°C or °F 
Accuracy: 
   J: ±0.5°C; -210 to -100°C, ±0.3°C; -100 to 1200°C 
   K: ±0.6°C; -200 to -100°C, ±0.35°C; -100 to 1000°C, ±0.5°C; 1000 to 1372°C 
   T: ±0.7°C; -200 to -150°C, ±0.3°C; -150 to 400°C 
   E: ±0.5°C; -200 to -100°C, ±0.3°C; -100 to 1000°C 
   R: ±1.8°C; 0 to 250°C, ±1.0°C; 250 to 1767°C 
   S: ±1.8°C; 0 to 250°C, ±1.0°C; 250 to 1767°C 
   B: ±1.7°C; 600 to 1000°C, ±1.2°C; 1000 to 1820°C 
   L: ±0.5°C; -200 to -100°C, ±0.4°C; -100 to 900°C 
   U: ±0.7°C; -200 to 0°C, ±0.3°C; 0 to 600°C 
   C: ±0.4°C; 0 to°C 1000°C, ±0.7°C; 1000 to 1800°C, ±1.2°C; 1800 to 2316°C 
Resolution: 1 ΩV Accuracy: ±0.007% rdg, ±10 ΩV 
Input Impedance: >1 MΩ 
CJC Temp Offset: ±0.05°C/°C outside of 23 ±5°C 
Warm-Up Time: 1 minute to specification 
Environmental 
Operating Temperature:-10 to 55°C (14 to 131ºF) 
Storage Temperature: -20 to 70°C (-4 to 158ºF) 
Power Requirement: 9 Vdc 
Battery: 9 V alkaline (included) 
Optional Power: Ni-Cad battery, AC adaptor/charger 
Mechanical 
Dimensions: 144.7 H x 80.0 W x 36.3 mm D (5.7 x 3.15 x 1.43") 
Weight: 340 g (12 oz)