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Prt/rtd resistance accuracy, Prt/rtd temperature accuracy, Prt/rtd measurement characteristics – Atec Fluke-1586A User Manual

Page 6

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6 Fluke Calibration 1586A Super-DAQ Precision Temperature Scanner

PRT/RTD resistance accuracy

Accuracy is given as % of measurement or ohms, whichever is greater. Basic accuracy is for 4-wire PRT/RTD. When using

3-wire PRT/RTD add 0.013 Ω to the accuracy specification for internal resistance mismatch and voltage offset if using

Channel 1, or add 0.05 Ω if using channels x01 through x20. If the environment temperature is outside the specified range,

multiply the temperature coefficient numbers by the temperature deviation and add to the accuracy specification.

Range

Sample Rate

DAQ-STAQ Multiplexer

and Channel 1

High-Capacity Module

T.C./ °C Outside

18 °C to 28 °C

0 Ω to 400 Ω

Slow

0.002 % or 0.0008 Ω

0.003 % or 0.003 Ω

0.0001 % or 0.0008 Ω

Medium

0.002 % or 0.002 Ω

0.003 % or 0.003 Ω

0.0001 % or 0.0008 Ω

Fast

0.002 % or 0.005 Ω

0.003 % or 0.006 Ω

0.0001 % or 0.0008 Ω

400 Ω to 4 kΩ

Slow

0.004 % or 0.06 Ω

0.006 % or 0.06 Ω

0.0001 % or 0.008 Ω

Medium

0.004 % or 0.1 Ω

0.006 % or 0.1 Ω

0.0001 % or 0.008 Ω

Fast

0.004 % or 0.18 Ω

0.006 % or 0.18 Ω

0.0001 % or 0.008 Ω

PRT/RTD temperature accuracy

Accuracy is for 4-wire 100 Ω nominal PRT/RTD. When using 3-wire PRT/RTD add 0.039 °C to the accuracy specification

for internal resistance mismatch and voltage offset if using Channel 1, or add 0.15 °C if using channels x01 through x20.

If the environment temperature is outside the specified range, multiply the temperature coefficient number by the tem-

perature deviation and add to the accuracy specification. Linear interpolation may be used between points in the table.

Specifications do not include sensor accuracy. The practical range of temperature measurement depends on the sensor

and characterization.

Sample Rate

Temperature

DAQ-STAQ Multiplexer and

Channel 1

High-Capacity Module

T.C./ °C Outside

18 °C to 28 °C

Slow

−200 °C

0 °C

300 °C

600 °C

0.002 °C

0.005 °C

0.012 °C

0.02 °C

0.008 °C

0.008 °C

0.018 °C

0.03 °C

0.002 °C

0.003 °C

0.006 °C

0.01 °C

Medium

−200 °C

0 °C

300 °C

600 °C

0.005 °C

0.005 °C

0.012 °C

0.02 °C

0.008 °C

0.008 °C

0.018 °C

0.03 °C

0.002 °C

0.003 °C

0.006 °C

0.01 °C

Fast

−200 °C

0 °C

300 °C

600 °C

0.013 °C

0.013 °C

0.014 °C

0.02 °C

0.015 °C

0.015 °C

0.018 °C

0.03 °C

0.002 °C

0.003 °C

0.006 °C

0.01 °C

PRT/RTD measurement characteristics

Range

Temperature Display Resolution

Source Current

Slow / Medium

Sample Rate

Fast

Sample Rate

0 Ω to 400 Ω

0.001 °C

0.01 °C

±1 mA

400 Ω to 4 kΩ

0.001 °C

0.01 °C

0.1 mA

Thermistor

Temperature range

−200 °C to 400 °C (depending on the sensor)

Resistance range

0 Ω to 1 MΩ