Spectrum Controls 1746sc-NI8u - Manual (Page 95)

Appendix A: Module Specifications 83
The following table provides the maximum error for each RTD and
resistance type when the 10 Hz, 50 Hz, and 60 Hz filters are used and the
module is operating at 0°C to 60°C and was at that temperature. Errors
due to lead wire resistance mismatches are not included.
Input Max. Error
Type 0°C to 60°C
100 Ω Pt 385 ±3.3°C
200 Ω Pt 385 ±2.8°C
500 Ω Pt 385 ±3.0°C
1000 Ω Pt 385 ±2.9°C
100 Ω Pt 3916 ±2.7°C
200 Ω Pt 3916 ±2.4°C
500 Ω Pt 3916 ±2.3°C
1000 Ω Pt 3916 ±2.2°C
10 Ω Cu 426 ±4.5°C
120 Ω Ni 618 ±0.8°C
120 Ω Ni 672 ±0.8°C
3000 Ω Resistance ±7.0 Ω
The diagrams that follow provide data from a sample module for a given
RTD type over a range of inputs, over temperature.
100 Ω Pt 385 RTD, Example Deviations
-1.4
-1.3
-1.2
-1.1
-1
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
-200 -100 0 100 200 300 400 500 600 700 800 900
Degrees C RTD Input
Degrees C Deviation
Ch 7 Delta, 25C
Ch 7 Delta, 0C
Ch 7 Delta, 60C