Fluke Calibration 4322-SYS-NAVAIR, Руководство по обслуживанию

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Calibration and Alignment
Introduction
3
3-3
Introduction
This chapter supplies information and instructions on how to calibrate and align the
G70M, G10M, G700K, A150K, and barometer modules in the Controller.
Note
This chapter does not contain information on the Intensifier because the
Intensifier does not require a calibration procedure. If the pressure
transducer in the Intensifier needs adjusted, use the adjustment procedure
in the 4322 Service Manual.
Fundamentals
Pressure transducer modules (the modules) are removable and interchangeable without
effect on their measurement performance or calibration. Calibration data required for the
reliable operation of the modules is stored onboard a memory chip inside of each module.
This data is retained even if the module is inserted in a different Controller. Though it is
not recommended, the coefficients can be manually adjusted in View/Edit Calibration
menu.
Calibration is performed with the automated self-calibration function that is a feature of
the Controller. When the calibration is finished, the Controller compares the
measurements made by the modules to the external reference pressure standard. The
Controller then displays the pass or fail information for the modules tested. If the
modules fail the calibration, then the modules must be adjusted.

Caution
To prevent damage to the product, only personnel that are
qualified should calibrate the product.
The calibration process has two test types: Calibration and Alignment. Calibration is a
performance verification procedure that tests to see if the module is within tolerance.
Alignment is a performance verification procedure as well, but lets the operator
automatically apply calculated calibration coefficients to bring the module into tolerance.
This is done by “activating” the changes after the Alignment procedure is complete.