Atec Fluke-724 - Manual (Page 52)

724
Users Manual
42
Temperature, RTD Ranges, and Accuracies (ITS-90)
Accuracy
Type Range
°
C Measure 4-Wire
°
C Measure 2- and 3-Wire*
°
C Source
°
C
Ni120 -80 to 260 0.2 0.3 0.2
Pt100-385 - 200 to 800 0.33 0.5 0.33
Pt100-392 -200 to 630 0.3 0.5 0.3
Pt100-JIS -200 to 630 0.3 0.5 0.3
Pt200-385 -200 to 250
250 to 630 0.2
0.8 0.3
1.6 0.2
0.8
Pt500-385 -200 to 500
500 to 630 0.3
0.4 0.6
0.9 0.3
0.4
Pt1000-385 -200 to 100
100 to 630 0.2
0.2 0.4
0.5 0.2
0.2
Resolution: 0.1
°
C, 0.1
°
F
Allowable excitation current (source): Ni120, Pt100-385, Pt100-392, Pt100-JIS, Pt200-385: 0.15 to 3.0 mA
Pt500-385: 0.05 to 0.80 mA; Pt1000-385: 0.05 to 0.40 mA
RTD Source: Addresses pulsed transmitters and PLCs with pulses as short as 5 ms.
* 2-wire: Does not include lead resistance.
3-wire: Assumes matched leads with a total resistance not exceeding 100
Ω
.