Pneumatic Operation; Volume Adjuster; Generating Pneumatic Pressure And Vacuum - GE Druck PV 411A Manuel D'utilisation

GE Druck PV 411A User Manual

Pneumatic Operation

Volume Adjuster

The volume adjuster can be used in different modes:
Low pressure
With the selector valve set to vent (open), turn the volume adjuster fully anti-
clockwise (out).
Turn the selector valve to the fully clockwise (in) position to select pressure.
Turn the volume adjuster clockwise to generate pressure.
High pressure
Turn the volume adjuster to the mid-position. In this position fine
adjustments of the generated pressure can be made. Using the scissor-
action handles, generate the approximate pressure; then turn the volume
adjuster clockwise (in) to increase the pressure or turn the volume adjuster
anti-clockwise (out) to decrease the pressure.
Vacuum
Turn the selector valve fully anti-clockwise (out) position.
Turn the volume adjuster to the mid-position. In this position fine
adjustments of the generated vacuum can be made.
Using the scissor-action handles, generate the approximate vacuum; then
turn the volume adjuster clockwise (in) to decrease the vacuum or turn the
volume adjuster anti-clockwise (out) to increase the vacuum.
For low vacuum use the volume adjuster only.

Generating pneumatic pressure and vacuum

Connect the pump as detailed on page 3.
1. Compressing a gas generates heat. Gas heated or cooled in
an enclosed volume causes a pressure change. It is important
to allow enough time for the heated gas to cool and the
pressure to stabilize.
2. The pumping required to generate a pressure depends on the
volume of the system. Therefore, keep the system volume to a
minimum.
K258 Issue No. 3
Notes
4