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NI 9216/9226 Calibration Procedure
6.
Connect the power source to the cDAQ-9178 chassis.
7.
Launch Measurement & Automation Explorer (MAX).
8.
Right-click the device name and select
Self-Test
to ensure that the module is working
properly.
Verification
The following performance verification procedure describes the sequence of operation and test
points required to verify the NI 9216/9226. The verification procedure assumes that adequate
traceable uncertainties are available for the calibration references.
Accuracy Verification
Complete the following procedure to determine the As-Found status of the NI 9216/9226.
1.
Set the calibrator to Standby mode (STBY).
2.
Connect the desired channel of the NI 9216/9226 to the calibrator as shown in Figure 1.
Connect only one channel at a time.
Figure 1.
4-Wire Resistance Connections
3.
Set the calibrator as a resistance source to a Test Point value indicated in Table 2.
4.
Set calibrator COMP to 4-wire.
Table 2.
NI 9216/9226 Accuracy Verification Test Limits
Module
Range
Test Point
1-Year Limits
Minimum
(
Ω
)
Maximum
(
Ω
)
Value (
Ω
)
Upper
Limit (
Ω
)
Lower
Limit (
Ω
)
NI 9216
0
400
0
0.03
-0.03
100
100.042
99.958
320
320.0684
319.9316
NI 9226
0
4000
0
0.3
-0.3
1000
1000.43
999.57
3200
3200.72
3199.28
EX+
HI
LO
AUX LO
AUX HI
EX–
RTD–
RTD+
NI 9216/9226
CALIBRATOR
4-Wire Connection
