Peter,
For the FP-AO-200 module, the error can be modeled as follows:
RealOutput = SpecifiedOutput +/- Offset +/-(Gain*SpecifiedOutput)
where
RealOutput is the value that is truly being output by the FP-AO-200 as measured by a high precision calibrator/DMM
SpecifiedOutput is the value that you have written to the FP-AO-200
Offset is the published offset error for the FP-AO-200 under your operating conditions
Gain is the published gain error percentage for the FP-AO-200 under your operating conditions.
Likewise for the FP-AI-100, the input accuracy can be modeled by:
MeasuredSignal=RealSignal +/- Offset +/- (Gain*RealSignal) +/- Noise Spec
where
MeasuredSignal is the value that is being read(reported) by the FP-AI-100
RealSignal is the value of the
signal input to the FP-AI-100
Offset is the published offset error for the FP-AI-100 under your operating conditions
Gain is the published gain error percentage for the FP-AI-100 under your operating conditions.
As a general rule, the best accuracy will be achieved by configuring the range of your input channel to most closely match the span of your input signal. For example, if you have a 0-5 Volt signal, choosing the 0-6 V range on the FP-AI-100 will result in a more accurate reading than choosing the +/-36 Volt range.
Regards,
Aaron
LabVIEW Champion, CLA, CPI