Atec Fluke-1586A - Manual (Page 7)

Fluke Calibration 1586A Super-DAQ Precision Temperature Scanner 7
Thermistor resistance accuracy
Accuracy is given as ± (% of measurement + Ω). The basic accuracy specification is for 4-wire thermistor, slow sample
rate. When using medium or fast sample rate, add the number given in the table to the accuracy specification. If the
environment temperature is outside the specified range, multiply the temperature coefficient numbers by the temperature
deviation and add to the accuracy specification. For 2-wire thermistor add 0.02 Ω internal resistance if using Channel 1 or
1.5 Ω if using channels x01 through x20, and add external lead wire resistance.
Range Slow
Sample Rate
Medium
Sample Rate
Fast
Sample Rate
T.C./ °C Outside
18 °C to 28 °C
0 Ω to 2.2 kΩ 0.004 % + 0.2 Ω add 0.3 Ω add 1 Ω 0.0005 % + 0.05 Ω
2.1 kΩ to 98 kΩ 0.004 % + 0.5 Ω add 0.5 Ω add 1.3 Ω 0.0005 % + 0.1 Ω
95 kΩ to 1 MΩ 0.015 % + 5 Ω add 5 Ω add 13 Ω 0.001 % + 2 Ω
Thermistor temperature accuracy
Accuracy specifications are for 4-wire thermistor. When using 2-wire thermistor, add the number given in the table to the
specification for internal resistance. If the environment temperature is outside the specified range, increase the accuracy
specification by 25 % for every 1 °C outside the specified environment temperature range. Specifications do not include
sensor accuracy. The practical range of temperature measurement depends on the sensor.
Range Accuracy 2.2 kΩ Thermistor
Slow
Sample Rate
Medium
Sample Rate
Fast
Sample Rate
2-wire
−40 °C 0.001 °C 0.001 °C 0.01 °C add 0.001 °C
0 °C 0.003 °C 0.004 °C 0.01 °C add 0.004 °C
25 °C 0.006 °C 0.011 °C 0.02 °C add 0.016 °C
50 °C 0.008 °C 0.018 °C 0.04 °C add 0.05 °C
100 °C 0.047 °C 0.114 °C 0.28 °C add 0.34 °C
150 °C 0.23 °C 0.56 °C 1.34 °C add 1.7 °C
Range Accuracy 5 kΩ Thermistor
Slow
Sample Rate
Medium
Sample Rate
Fast
Sample Rate
2-wire
−40 °C 0.003 °C 0.004 °C 0.01 °C add 0.001 °C
0 °C 0.002 °C 0.002 °C 0.01 °C add 0.002 °C
25 °C 0.004 °C 0.006 °C 0.01 °C add 0.007 °C
50 °C 0.005 °C 0.009 °C 0.02 °C add 0.022 °C
100 °C 0.022 °C 0.052 °C 0.13 °C add 0.16 °C
150 °C 0.096 °C 0.24 °C 0.57 °C add 0.7 °C
Range Accuracy 10 kΩ Thermistor
Slow
Sample Rate
Medium
Sample Rate
Fast
Sample Rate
2-wire
−40 °C 0.003 °C 0.004 °C 0.01 °C add 0.001 °C
0 °C 0.002 °C 0.002 °C 0.01 °C add 0.002 °C
25 °C 0.003 °C 0.004 °C 0.01 °C add 0.004 °C
50 °C 0.005 °C 0.009 °C 0.02 °C add 0.011 °C
100 °C 0.011 °C 0.024 °C 0.06 °C add 0.067 °C
150 °C 0.04 °C 0.098 °C 0.24 °C add 0.29 °C