PPC4™ OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company
Page 124
5.7.12.5 TEST (-) Vent
PURPOSE
To cause a PPC4 or external RPM4’s Gxxx or BGxxx Q-RPT TEST (-) Vent valve to
stay open or closed rather than open and close automatically (see Section 3.2.27.6).
Note
This menu selection is available only when the active Q-RPT is a
Gxxx (gauge) or BGxxx (bi-directional gauge) Q-RPT.
OPERATION
[Settings], <More >>>, <Internal>, TEST (-) Vent
accesses the TEST (-) Vent
screen. Selections are Operation and Status.
Operation:
Auto or Manual
Status:
Open or Closed
Automatic Operation is the default. Manual Operation allows the selection of always
Open or always Closed. Status entry is only available if Manual operation is selected.
[Settings], <More >>>, <Internal> to view the settings of the TEST (-) Vent Valve
[OK]
to accept and return to the Main Run Screen,
[Back]
to return to
<Internal>
without making changes,
[Esc]
or
to exit to the Main Run Screen without
making changes.
Note
The TEST (-) VENT function setting always applies to the active Q-
RPT module, whether the module is internal to PPC4 or in an
external RPM4 (see the RPM4 Operation and Maintenance Manual).
Caution
If the PPC4 detects a condition in which it determines there could
be a risk of overpressure to the RPT by opening the TEST (-) Vent
valve when a Manual Open is requested, a message indicating a DP
overpressure risk is displayed. If this message is displayed, return
to normal operation, vent the PPC4 and try again.
Summary of Contents for PPC4
Page 70: ...PPC4 OPERATION AND MAINTENANCE MANUAL 2009 DH Instruments a Fluke Company Page 58 Notes...
Page 194: ...PPC4 OPERATION AND MAINTENANCE MANUAL 2009 DH Instruments a Fluke Company Page 182 Notes...
Page 226: ...PPC4 OPERATION AND MAINTENANCE MANUAL 2009 DH Instruments a Fluke Company Page 214 Notes...
