Appendix A
Specifications
©
National Instruments Corporation
A-3
RTD Accuracy
2
Thermistor Accuracy
3
2
RTD specifications assume that the 25 k
Ω
range is used and worst case common mode voltage for this range is present.
Specifications improve if actual common mode voltage is less than worst case. Specifications improve for a 1,000
Ω
RTD.
Error (° C)
15°–35° C, 1 Year
0°–15° C,
35°–55° C
Filter Setting
Temperature
Coefficient
° C/° C
RTD
° C
10 Hz
50 Hz
60 Hz
100
Ω
–200
1.00
1.33
1.81
0.01
0
1.14
1.49
2.00
100
1.22
1.58
2.10
300
1.38
1.76
2.32
600
1.66
2.08
2.69
3
Thermistor accuracy is valid for all filter settings. Specifications assume that the 25 k
Ω
range is used and worst case common
mode voltage for this range is present. Specifications improve is actual common mode voltage is less than worst case.
Accuracy (° C)
15°–35° C, 1 Year,
Filter Setting: 10 Hz,
50 Hz, 60 Hz
Temperature
Coefficient
0°–15° C,
35°–55° C
Thermistor
° C
° C
° C/° C
5,000
Ω
0–50
0.03
0.001
