Accuracy of NI 9214 Expressed in V and °C

Updated Jul 1, 2025

Reported In

Hardware

  • NI-9214
  • TB-9214

Issue Details

I'm using the NI-9214 and I'd like to know the accuracy of this module expressed in Volts (V).

Solution

The accuracy of the NI-9214 can be calculated as for Voltage input modules following the equations in Calculating Absolute Accuracy or System Accuracy, but adding the input noise as RMS noise * Crest Factor as in the following,

± [(VoltageReading x GainError) + (OffsetError) + (RMS noise x Crest Factor)]

The values to calculate the accuracy can be found in NI-9214 Specifications.

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