Fluke (Calibration) 1523 Reference Thermometers (1CH, -200°C ~ +1750°C)

Input channels: 1 

Resolution 

PRTs and thermistors: 0.001°  

thermocouples: 0.01°

Logging: 25 readings with statistics 

Sample interval (normal): 1 second

Typical sample interval (fast mode)*: 0.3 seconds

Sensor types: PRTs, RTDs, thermistors, and thermocouples

Thermocouple types: C, E, J, K, L, M, N, T, U, B, R, S

Statistics: Maximum, minimum, average, standard deviation

Trending 

Scale: ± 10 °C (18 °F), ± 1 °C (1.8 °F), ± 0.1°C (0.18 °F),  

± 0.01°C (0.018 °F), 10 minutes of real-time data

Power requirements: 3 AA alkaline batteries, 12 V dc universal power supply

Size (HxWxD): 96 mm x 200 mm x 47 mm (3.75 in x 7.9 in x 1.86 in)

Weight: 0.65 kg (1.4 lb)

Computer interface: RS-232, 9940 I/O ToolKit software included

Safety: EN61010-1:2001, CAN/CSA C22.2 No. 61010.1-04

Environmental conditions for best accuracy: 13 °C to 33 °C (55.4 °F to 91.4 °F)

Millivolt range and accuracy: –10 mV to 75 mV, ± (0.005 % + 5 µV)

Internal reference junction compensation: ± 0.2 °C (± 0.36 °F)

Resistance range and accuracy: 

0 Ω to 400 Ω ± (0.004 % + 0.002 Ω) 

200 Ω to 50 kΩ ± (0.01 % + 0.5 Ω) 

50 kΩ to 500 kΩ ± (0.03 %)

Temperature coefficient, voltage: –10 °C to 13 °C , +33 °C to 60 °C 

(14 °F to 55.4 °F, 91.4 °F to 140 °F): ± (0.001 %/°C + 1 mV/°C)

Temperature coefficient, resistance: –10 °C to 13 °C , +33 °C to 60 °C 

(14 °F to 55.4 °F, 91.4 °F to 140 °F)

0.0008 %/°C + 0.0004 Ω (0 Ω to 400 Ω) 

0.002 %/°C + 0.1 Ω (0 Ω to 50 kΩ) 

0.06 %/°C + 0.1 Ω (50 kΩ to 500 kΩ)

Excitation current, resistance: 

1 mA (0 Ω to 400 Ω) 

10 µA (0 Ω to 50 kΩ) 

2 µA (50 kΩ to 500 kΩ)