National Instruments NI 9219 - Manual (Page 23)

© National Instruments Corp. 23 NI 9219 Operating Instructions
Input impedance
Voltage and Digital In modes
(
±60 V, ±15 V, ±4 V ) ..................... 1 M
Ω
Current mode.............................. < 40 Ω
All other modes .......................... >1 G Ω
Accuracy
Mode, Range
Gain Error
(% of
Reading)
Offset Error
(ppm of
Range)
Typ (25 °C, ±5 °C),
Max (–40 to 70 °C)
Voltage, ± 60 V ±0.3, ±0.4 ±20, ±50 1
Voltage, ± 15 V ±0.3, ±0.4 ±60, ±180
Voltage, ± 4 V ±0.3, ±0.4 ±240, ±720
Voltage, ± 1 V ±0.1, ±0.18 ±15, ±45 1
Voltage/Thermocouple, ± 125 mV ±0.1, ±0.18 ±120, ±360
Current, ± 25 mA ±0.1, ±0.6 ±30, ±100
4-Wire and 2-Wire 2 Resistance, 10 K Ω ±0.1, ±0.5 ±120, ±320
4-Wire and 2-Wire 2 Resistance, 1 K Ω ±0.1, ±0.5 ±1200, ±3200