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NI 5114 Calibration Procedure | © National Instruments | 37
Adjustment
If the NI 5114 successfully passed each of the verification procedures within the calibration test
limits, then an adjustment is recommended but not required to guarantee the published
specifications for the next two years. You can update the calibration date and onboard calibration
temperature without making any adjustments by completing only steps 1 and 13.f in this section.
If the device was not within the calibration test limits for each of the verification procedures, you
can perform the adjustment procedure to improve the accuracy of the device. Refer to the
Appendix A: Calibration section to determine which procedures to perform.
An adjustment is required only once every two years. Following the adjustment procedure
automatically updates the calibration date and temperature in the EEPROM of the device.
Complete all of the following steps to externally adjust the NI 5114:
1.
Obtain an instrument session handle using the niScope Cal Start VI.
2. Short-circuit the channel 0 input of the device by connecting the calibrator test head directly
to the device and grounding the output of the calibrator.
3. Wait 2,500 ms for the impedance matching and frequency of the calibrator to settle.
LabVIEW VI C/C++ Function Call
Call
niScope_CalStart
with
the following parameters:
resourceName : The name of the
device to calibrate. You can find
this name under Devices and
Interfaces in MAX.
password : The password required
to open an external calibration
session. If this password has not
been changed since
manufacturing, the password is
"
NI
".