National Instruments 9225E Operating Instructions And Specifications page 16

Accuracy
Measurement Conditions
Calibrated max (–40 to 70 °C)
Calibrated typ (25 °C, ±5 °C)
Calibrated max (25 °C, ±15 °C)
Uncalibrated max (–40 to 70 °C)
Uncalibrated typ (25 °C, ±5 °C)
*
Range equals 425 V.
Input noise ........................................ 2 mV
Stability
Gain drift .................................... ±10 ppm/°C
Offset drift .................................. ±970 µV/°C
Post calibration gain match
(ch-to-ch, 20 kHz)............................. ±0.25 dB max
© National Instruments Corp.
Percent of
Reading
(Gain Error)
±0.23%
±0.05%
±0.084%
±1.6%
±0.4%
rms
15 NI 9225E Operating Instructions and Specifications
Percent of
*
Range
(Offset Error)
±0.05%
±0.008%
±0.016%
±0.66%
±0.09%