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© National Instruments Corp. 11 FP-RTD-124 and cFP-RTD-124
Specifications
These specifications are typical for the range –40 to 70 °C unless
otherwise noted.
Input Characteristics
Number of channels..........................8
ADC resolution.................................16 bits
Type of ADC.....................................Delta-sigma
Input signal ranges (software-selectable by channel)
Temperature................................73 to 1123 K
–200 to 850 °C
–328 to 1562 °F
Resistance...................................0 to 400 Ω
Temperature accuracy
Resolution.........................................0.016 °C
Resistance accuracy
Offset error.................................0.03 Ω typical, 0.1 Ω max
Gain error ...................................0.06% typical, 0.1% max
Resolution...................................0.0061 Ω
Excitation current..............................135 ms pulses of 2 mA every
second
Input noise ........................................±1 bit peak-to-peak
Signal input bandwidth.....................3 Hz
Update rate........................................Each channel is updated
once a second
Error
Measured Value
15 to 35 °C –40 to 70 °C
Typical Maximum Typical Maximum
–200 to 150 °C 0.15 0.25 0.30 0.60
150 to 850 °C 0.25 0.50 0.80 1.50