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NI 5450 Calibration Procedure
8
ni.com
For PCI digitizers
:
•
Plug the PC and the calibrator into the same power strip to avoid
ground loops.
Calibration Procedures
The calibration process includes the following steps.
1.
—Install the device and configure it in Measurement &
Automation Explorer (MAX).
Note
Allow a 15-minute warm-up time before beginning self-calibration.
2.
—Adjust the self-calibration constants of the device.
3.
—Verify the existing operation of the device. This step
confirms whether the device is operating within its specified range
prior to calibration.
4.
—Perform an external adjustment of the device that adjusts
the calibration constants with respect to a known voltage source. The
adjustment procedure automatically stores the calibration date on the
EEPROM to allow traceability.
5.
Reverification
—Repeat the verification procedure to ensure that the
device is operating within its specifications after adjustment.
These steps are described in more detail in the following sections.
Note
In some cases, the complete calibration procedure may not be required. Refer to
Appendix A: Calibration Options
for more information.
Initial Setup
Refer to the
NI High-Speed Digitizers Getting Started Guide
for
information about how to install the software and hardware, and how
to configure the device in MAX.
Self-Calibration
The NI 5152/5153/5154 includes precise internal circuits and references
used during self-calibration to adjust for time and temperature drift.
Note
Allow a 15 minute warm-up period before you begin self-calibration.
Note
Self-calibrate the digitizer before you perform verification. NI-SCOPE includes
self-calibration example programs for LabVIEW, CVI, and Microsoft Visual C.