Fluke 71X Series Calibration Manual page 20

71X Series
Calibration Manual
RTD
Type
Pt 1000 385
Pt 100 392
(3926)
Pt 100 JIS
3916
Addresses pulsed transmitters and PLCs with pulses as short as 5 ms.
Excitation current from 712: 0.2 mA.
Maximum input voltage: 30 V
*2-wire: Does not include lead resistance
3-wire: Assumes matched leads
Ohms Range
0 Ω to 400 Ω
400 Ω to 4000 Ω
Excitation current: 0.2 mA.
Maximum input voltage: 30 V
*2-wire: Does not include lead resistance
3-wire: Assumes matched leads
Ohms Range
5 to 400 Ω
5 to 400 Ω
400 to 1500 Ω
1500 to 4000 Ω
Resolution
RTD: 0.1 °C
Ohms: 0.1 Ω
Rev 1.3 or Later: < 400 Ω 0.01 Ω
10
Table 8. RTD Specifications (cont.)
Range ˚C
-200.0 to 100.0 0.20
100.0 to 300.0 0.30
300.0 to 630.0 0.40
-200.0 to 100.0 0.20
100.0 to 300.0 0.30
300.0 TO 630.0 0.40
-200.0 to 100.0 0.20
100.0 to 300.0 0.30
300.0 to 630.0 0.40
Table 9. Ohms Measurement Specifications
Table 10. Ohms Source Specifications
> 400 Ω 0.1 Ω
Accuracy (˚C) *
Input
4-Wire 2-Wire & 3-Wire
0.25
0.40
0.52
0.28
0.40
0.52
0.28
0.40
0.52
Accuracy *
4-Wire
0.025 % ±0.05 Ω
0.025 % ±0.05 Ω
Excitation Current from
Measurement Device
0.1 to 0.5 mA
0.5 to 3.0 mA
0.05 to 0.8 mA
0.05 to 0.4 mA
Allowable
Excitation (mA)
Source
0.2 0.05 to 0.4
0.3
0.4
0.2 0.1 to 3.0
0.3
0.4
0.2 0.1 to 3.0
0.3
0.4
2- and 3-wire
0.025 % ±0.1 Ω
0.025 % ±0.55 Ω
Accuracy
0.025 % ±0.1 Ω
0.025 % ±0.05 Ω
0.025 % ±0.5 Ω
0.025 % ±0.5 Ω