Adjustment; Accuracy Adjustment - National Instruments C Series Calibration Procedure

Samples Per Channel
1000
c) Set the filter frequency to 625 Hz using the Channel Property ( Analog Input »
General Properties »Filter »Frequency ).
d) Start the task.
e) Read the samples from the NI 9202.
f) Average the samples.
g) Clear the task.
6. Compare the averaged samples to the limits in the NI 9202 Verification Test Limits table
to verify the input accuracy. If the values are within these limits, the device passes the
test.
7. Set the calibrator to Standby mode (STBY).
8. Repeat steps 3 through 7 for each test point in the NI 9202 Verification Test Limits table.
9. Disconnect the calibrator from the device.
Test Points
Location Value (VDC)
Min
Mid
Max
Note The test limits listed in the NI 9202 Verification Test Limits table are derived
using values from the NI 9202 Accuracy Under Calibration Conditions table.

Adjustment

The following performance adjustment procedure describes the sequence of operation required
to adjust the NI 9202.

Accuracy Adjustment

Complete the following procedure to adjust the accuracy performance of the NI 9202.
1. Set the calibrator to Standby mode (STBY).
2. Connect the NI 9202 to the calibrator as shown in the Accuracy Verification section.
3. Adjust the NI 9202.
a) Initialize a calibration session on the NI 9202. The default password is
b) Input the external temperature in degrees Celsius.
Table 3. NI 9202 Task Timing
Table 4. NI 9202 Verification Test Limits
-10.0000
0.0000
10.0000
NI 9202 Calibration Procedure | © National Instruments Corporation | 5
Acquisition Mode
Finite Samples
2-Year Limits
Lower Limit (VDC)
-10.0298
-0.0158
9.9701
Rate (kS/s)
10
Upper Limit (VDC)
-9.9701
0.0158
10.0298
.
NI