Fluke Calibration RPM4, Operation And Maintenance Manual

Page: 133 / 150

5. MAINTENANCE, ADJUSTMENTS AND CALIBRATIONS
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Absolute and negative gauge measurement modes ON or OFF (Axxx Q-RPTs only)
– See Section 3.3.3,  PRINCIPLE for complete information on measurement modes.
This is set to OFF if an Axxx Q-RPT was calibrated in gauge mode with a gauge
pressure standard.

OPERATION
As editing PA and PM values will change the calibration of the Q-RPTs, the edit function
should only be used by qualified personnel as part of the calibration process. Caution
should be taken to avoid accidental editing. A user level security system is available to
control access (see Section 3.5.5.5).
A new RPM4 is delivered with PA and PM values set to zero and 1 for all ranges. This does
not mean that the RPM4 has not been calibrated. In the original factory calibration, privileged
factory coefficients are used for calibration with the user PA and PM set to zero and 1.
To access Q-RPT calibration information viewing or editing press [SPECIAL] , <8Cal> .
Select the desired Q-RPT. The <1view> selection displays the calibration information fields.
The <2edit> function displays the fields and allows them to be edited. The display is:
1. Date of last calibration in YYYYMMDD format.
2. Position designator of the Q-RPT being viewed.
3. Current value of absolute mode P
offset
.
This line is blank if the Q-RPT is not an Axxx type.
Cal date:20030325 Hi
AbsPoffset: 0.0 Pa
If in edit mode, the calibration information fields can be edited. Edits to P
offset
are common
with changes made in the AutoZ edit or run function (see Section 3.5.1). Pressing [ENT] on
the last field goes to the next view/edit screen:
1. Value of PA.
2. Position designator of the Q-RPT being viewed.
3. Value of PM.
PA: 0.0 Pa Hi
PM: 1.000000
If in edit mode, the calibration fields can be edited. If the selected Q-RPT is an Axxx Q-RPT,
pressing [ENT] in the PM field goes to the next calibration information display (this display is
skipped if the Q-RPT is a Gxxx or BGxxx type):
1. Position designator of the Q-RPT being viewed.
2. Cursor is on current ON or OFF selection.
Absolute and Hi
neg g mode: 1on 2off
The cursor is on the current setting. If in edit mode, the ON or OFF status can be changed
by selecting <1on> or <2off> (see Section 5.2.5). [ENT] in view mode returns to the
view/edit screen. [ENT] in edit mode goes to confirmation of change activation if changes have