National Instruments 24-Bit Half/Full-Bridge Analog Input Module NI 9237 - Manual (Page 23)

© National Instruments Corp. 23 NI 9237 Operating Instructions and Specifications
Overvoltage protection
between any two pins........................ ±30 V
Accuracy
Gain drift........................................... 10 ppm/°C max
Offset drift
2.5 V excitation .......................... 0.6
μV/V per °C
3.3 V excitation .......................... 0.5 μV/V per °C
5 V excitation ............................. 0.3 μV/V per °C
10 V excitation ........................... 0.2
μV/V per °C
Measurement Conditions *
Percent of
Reading
(Gain Error)
Percent of
Range **
(Offset Error)
Calibrated typ (25 °C, ±5 °C) 0.05% 0.05%
Calibrated max (–40 to 70 °C) 0.20% 0.25%
Uncalibrated typ (25 °C, ±5 °C) 0.20% 0.1%
Uncalibrated max (– 40 to 70 °C) 0.60% 0.35%
* Before offset null or shunt calibration.
** Range equals 25 mV/V.