Ashcroft ATE-2, Operation And Maintenance Manual

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8. Upon completion of the Linearization process, the HHC will
prompt “Apply new cal” function to save the results of the
entire procedure. Also at this time, each individual component
of calibration (Cal Zero, Cal Full Scale & Cal Linearity) can be
returned to, redone and saved individually.
9. To proceed with saving the entire Calibration, press
“ENTER”. The system will display: “Saving Parameters. This
will take a few seconds” and then return to the Pressure
Measuring Screen.
10. The pressure module field calibration process is complete.
NOTE: If the field calibration process needs to be interrupted,
use the ESC key to revert back to a previous step in the pro-
cedure. Several sequential ESC commands will return the
system to a pressure-measuring mode. This will work in any
part of the process, except when the data is being acquired.
The data inquiry can be aborted by pressing the MENU key –
this will return the system back to the MAIN MENU screen.
New calibration data is being saved to the module EEPROM
only when the “Apply new cal” function is performed. If this
was not done during the field calibration process – the system
will have no permanent changes. As soon as the power is
recycled, the unit will return to “pre-calibration” state.
The “Cal Linearity” procedure must be completed in its
entirety (all linearity points have to be taken) in order to save
new linearity corrections. If during “Cal Linearity” procedure
the ESC key was pressed before all linearity points were
taken, the partial linearization data will be discarded.
SECTION 15 o. PRESSURE MODULE CALIBRATION
CONT.