NI 9207 Calibration Procedure
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© National Instruments
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5
6.
Compare the average to the limits in Table 4.
7.
Repeat step 5 and 6 with the ADC timing mode on the NI 9207 set to high-speed.
8.
Set the calibrator to Standby mode (STBY).
9.
Repeat steps 3 through 8 for each test point listed in Table 4.
10. Disconnect the calibrator from the device.
11. Repeat steps 1 through 10 for each voltage channel on the NI 9207.
Current Accuracy Verification
Complete the following procedure to determine the As-Found status of the NI 9207.
1.
Set the calibrator to Standby mode (STBY).
2.
Connect the NI 9207 to the calibrator as shown in Figure 2.
Figure 2.
Current Accuracy Connections
Note
If the calibrator outputs are truly floating, connect the negative output to a
quiet earth ground as well as COM to give the entire system a ground reference.
3.
Set the calibrator current to a Test Point value indicated in Table 7.
4.
Set the calibrator to Operate mode (OPR).
Table 4.
NI 9207 Verification Test Limits for Voltage Accuracy
Range (V)
Test Point
1-Year Limits
Minimum
Maximum
Location
Value (V)
Lower Limit
(V)
Upper Limit
(V)
-10.00000
10.00000
Pos FS
10.00000
9.98792
10.01208
-10.00000
10.00000
Mid
0.00000
-0.00208
0.00208
-10.00000
10.00000
Neg FS
-10.00000
-10.01208
-9.98792
NI 9207
C
a
li
b
r
a
tor
COM
AI
x
HI
LO
G
ua
rd
NI 9207
C
a
li
b
r
a
tor
COM
AI
x
HI
LO
1
2
