NI 9219 Calibration Procedure
48
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The NI 9219 is now calibrated with respect to your external source. After performing the
Adjustment
Procedure, repeat the
Procedure to re-verify the accuracy of the module.
Accuracy Under Calibration Conditions
The following accuracy table is valid for calibration under the following conditions:
•
Ambient temperature of 23 ±5 °C
•
NI 9219 installed in slot 8 of an NI cDAQ-9178 chassis
•
Slots 1 through 7 of the NI cDAQ-9178 chassis are empty
Note
The test limits listed in Tables 5, 7, 9, 11, 13, 15, 17, 19, 21, are derived using the values in
Table 24.
Table 24.
NI 9219 Accuracy Under Calibration Conditions
Mode
Range
PPM of
Reading
PPM of
Range
Minimum
Maximum
Voltage ±60 V
–60 V
60 V
744
17
Voltage ±15 V
–15 V
15 V
745
55
Voltage ±4 V
–4 V
4 V
740
147
Voltage ±1 V
–1 V
1 V
308
14
Voltage ±125 mV
–125 mV
125 mV
308
82
Thermocouple
–125 mV
125 mV
308
82
Current
–25 mA
25 mA
1067
24
4-Wire Resistance 10 k
0
10.5 k
776
61
4-Wire Resistance 1 k
0
1.05 k
771
474
4-Wire RTD Pt1000
0
5.05 k
774
122
4-Wire RTD Pt100
0
505
764
947
3-Wire RTD Pt1000
0
5.05 k
807
122
3-Wire RTD Pt100
0
505
797
951
2-Wire Resistance 10 k
0
10.5 k
776
61
2-Wire Resistance 1 k
0
1.05 k
771
475
Quarter-Bridge 350
0
390
760
956
Quarter-Bridge 120
0
150
734
1612
Half-Bridge 500 mV/V
–500 mV/V
500 mV/V
93
205
Full-Bridge 62.5 mV/V
–62.5 mV/V
62.5 mV/V
111
197
Full-Bridge 7.8 mV/V
–7.8125 mV/V
7.8125 mV/V
120
1526
