National Instruments 9220 Calibration Procedure

NI 9220 Calibration Procedure | © National Instruments Corporation | 5
b. Configure the AI voltage channel timing according to Table 3.
c. Start the task.
d. Read samples from the NI 9220.
e. Average the samples.
f. Clear the task.
6. Compare the average of the samples to the test limits in Table 4.
Note The test limits listed in Table 4 are derived using the values in Table 6.
7. Repeat steps 3 through 6 for each Test Point in Table 4.
8. Set the calibrator to Standby mode (STBY).
9. Disconnect the NI 9220 from the calibrator.
10. Repeat steps 1 through 9 for each channel on the NI 9220.
Adjustment
The following performance adjustment procedure describes the sequence of operation required
to adjust the NI 9220.
Accuracy Adjustment
Complete the following procedure to adjust the accuracy performance of the NI 9220.
1. Set the calibrator to Standby mode (STBY).
2. Connect the NI 9220 to the calibrator as shown in Figure 1.
3. Adjust the NI 9220.
a. Initialize a calibration session on the NI 9220. The default password is
NI.
b. Input the external temperature in degrees Celsius.
Table 3. NI 9220 Timing Configuration
Samples Per Channel Acquisition Mode Rate (kS/s)
10,000 Finite 100
Table 4. NI 9220 Test Limits
Range (V) Test Point 1-Year Limits
Min Max Location Value (V) Lower Limit (V) Upper Limit (V)
-10.000 10.000 Max 9.500000 9.497865 9.502135
-10.000 10.000 Mid 0.000000 -0.00090 0.00090
-10.000 10.000 Min -9.500000 -9.502135 -9.497865

National Instruments 9220 Specifications

General

Brand	National Instruments
Model	9220
Category	I/O Systems
Language	English