©
National Instruments Corp.
23
NI 9219E Operating Instructions and Specifications
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
(Percent of
Reading)
Offset Error
(ppm of
Range)
Typ (25 °C, ±5 °C),
Max (–40 to 85 °C)
Voltage,
±
60 V
±0.3, ±0.4
±20, ±50
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
Voltage/Thermocouple,
±
125 mV
±0.1, ±0.18
±120, ±360
Current,
±
25 mA
±0.1, ±0.6
±30, ±100
4-Wire and 2-Wire
*
Resistance, 10 k
Ω
±0.1, ±0.5
±120, ±320
4-Wire and 2-Wire
*
Resistance, 1 k
Ω
±0.1, ±0.5
±1200, ±3200
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