Fluke 71X Series - Firmware V2.0 and Later

Process Calibrators
Specifications
9
Table 7. Ohms Specifications
Ohms Range
Input Accuracy
4-Wire
±Ω
Output
Accuracy
±Ω
Allowable Excitation (mA)
0 Ω to 400 Ω 0.1 0.15 0.1 to 0.5
0.1 0.5 to 3.0
400 Ω to 1.5 kΩ 0.5 0.5 0.05 to 0.8
1.5 kΩ to 3.2 kΩ 1 1 0.05 to 0.4
Allowable Excitation is for Output mode only. It shows the allowable excitation current from an ohmmeter or
RTD measurement device connected to the calibrator.
Excitation current from 712: 0.2 mA.
Maximum input voltage: 30 V
Resolution
RTD: 0.1 °C
Ohms: 0.1 Ω
Rev 1.3 or Later: < 400 Ω 0.01 Ω
> 400 Ω 0.1 Ω
Temperature Coefficient
0.005 % of ohms range per °C for temperature ranges –10 °C to 18 °C and 28 °C to
55 °C. Ohms ranges are 400 Ω, 1.5 kΩ, and 3.2 kΩ.
Firmware V2.0 and Later
Table 8. RTD Specifications
RTD
Type
Range ˚C
Accuracy (˚C) *
Allowable
Excitation (mA)
Input
Source
4-Wire 2-Wire & 3-Wire
Ni 120 -80.0 to 260.0 0.20 0.25 0.2 0.1 to 3.0
Pt 100 385 -200.0 to 100.0 0.20 0.28 0.2 0.1 to 3.0
100.0 to 300.0 0.30 0.40 0.3
300.0 to 600.0 0.40 0.52 0.4
600.0 to 800.0 0.50 0.65 0.5
Pt 200 385 -200.0 to 100.0 0.80 1.00 0.8 0.05 to 0.8
100.0 to 300.0 0.90 1.15 0.9
300.0 to 630.0 1.00 1.20 1.0
Pt 500 385 -200.0 to 100.0 0.40 0.60 0.4 0.05 to 0.8
100.0 to 300.0 0.50 0.75 0.5
300.0 to 630.0 0.60 0.90 0.6
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