Reducing The Vacuum; Recommended Reference Pressure Measuring Instruments - WIKA CPP7-H Mode D'emploi

5. Commissioning, operation

5.8 Reducing the vacuum

1. Turn the pressure relief and switching valve
vacuum is approximately achieved.
2. Turn the pressure relief and switching valve
EN
3. Turn the fine adjustment valve
⇒
Turn clockwise in order to reduce the pressure.
⇒
Turn anticlockwise in order to increase the pressure.

5.9 Recommended reference pressure measuring instruments

Precision digital pressure gauge model CPG1500
Measuring ranges
Accuracy
For further specifications see data sheet CT 10.51
Hand-held pressure indicator model CPH6200
Measuring ranges
Accuracy
For further specifications see data sheet CT 11.01
Hand-held pressure indicator model CPH6300
Measuring ranges
Accuracy
For further specifications see data sheet CT 12.01
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until the desired vacuum is reached.
5
to 10,000 bar (150,000 psi)
to 0.025 % of span
to 1,000 bar (14,500 psi)
to 0.1 % of span
to 1,000 bar (14,500 psi)
to 0.1 % of span
carefully to the "VENT" setting, until the
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back to the "VACUUM" setting.
13
WIKA operating instructions, model CPP7-H