Fluke 74X Series - Temperature, Resistance Temperature Detectors

74X Series
Calibration Manual
8
Temperature, Resistance Temperature Detectors
Temperature, RTDs
Type (
α
) Range °C Measure °C Source °C
1 Year 2 Year 1 Year 2 Year
100Ω Pt(3926) -200 to 0 0.3 0.4 0.1 0.2
0 to 630 0.5 0.8 0.2 0.4
100Ω Pt(385) -200 to 0 0.3 0.5 0.1 0.2
0 to 400 0.5 0.8 0.2 0.4
400 to 800 0.8 1.0 0.4 0.5
120Ω Ni(672) -80 to 260 0.3 0.4 0.1 0.2
200Ω Pt(385) -200 to 0 0.3 0.5 0.1 0.2
0 to 400 0.5 0.8 0.2 0.4
400 to 630 0.8 1.0 0.4 0.5
500Ω Pt(385) -200 to 0 0.3 0.5 0.1 0.2
0 to 400 0.5 0.8 0.2 0.4
400 to 630 0.8 1.0 0.4 0.5
1000Ω Pt(385) -200 to 0 0.3 0.5 0.1 0.2
0 to 400 0.5 0.8 0.2 0.4
400 to 630 0.8 1.0 0.4 0.5
10Ω Cu(427) -100 to 0 2 2 1 1
0 to 260 2 2 1 1
100Ω Pt(3916) -200 to -190 0.3 0.4 0.3 0.4
-190 to 0 0.3 0.4 0.1 0.2
0 to 630 0.5 0.8 0.2 0.4
Sensor inaccuracies not included
Resolution: 0.1 °C, except 1 °C for 10Ω Cu.
Temperature Coefficient: 0.02 °C/ °C in the ranges -10 to 18 °C and 28 to 50 °C
Maximum Input Voltage: 30V
Maximum Input Current for RTD Source: 10Ω RTD: 8 mA dc
100Ω,120Ω RTDs: 3 mA dc
200Ω − 1000Ω RTDs: 1 mA dc
For two and three-wire RTD measurements, add 0.4 ° C to the specifications.