5.MAINTENANCE, ADJUSTMENTS AND CALIBRATIONS

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 Poffset.

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 Poffset 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

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© 2004-2007 DH Instruments, a Fluke Company

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Fluke RPM4 manual Cal date20030325 Hi AbsPoffset 0.0 Pa, 000000, Absolute Neg g mode 1on 2off