Magnum Venus Plastech Flex Molding Process PPVS-INFUSION VACUUM - Manual (Page 24)

PPVS Vacuum Sensor Manual
Rev. 03/2013 Page | 24
Adjusting the PPVS:
As already mentioned the PPVS is factory set to signal at or very close to 800mb
absolute pressure however, if the user should wish to change this setting the following
procedure is applied.
Testing and Adjusting using the Calibration Box:
To Test the Vacuum Activation Level:
1) Push the PPVS firmly into the socket at the top of the
Calibration Box.
2) Connect the INJECT Output on the control box to the
PPVS supply port using 4 mm tube.
3) Connect the 6mm air supply to the Box and turn the
air on at supply.
4) Using the Vacuum Level Control adjust the vacuum
level Up/Down to determine the vacuum pressure
that the valve activates & deactivates at. The
indicator will signal red when the valve is active.
Testing PPVS-Infusion for vacuum leak:
1. Load the PPVS valve into the Universal Insert
Adaptor port.
2. Connect the INJECT Output on the control box to
the PPVS supply port using 4 mm tube.
3. Connect the PPVS signal line to the pneumatic
Indicator on the control box.
4. Using the Vacuum Level Control adjust the vacuum to the desired level.
5. Turn the Vacuum Isolator valve to the Closed position (horizontal) to lock the
vacuum level – if the vacuum level moves (leaks) down the seal in the valve is
not holding vacuum.
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