Pressure Stable; Next Pressure Level - WIKA CPB5000HP Betriebsanleitung

Pressure Balance High-Pressure
CPB5000HP

3.2.3 Pressure stable

 Continue admitting pressure until the system is in a state of equilibrium.
 The piston is in the float position. In this case the lower edge of the bell must stay at the position of
the marking line of the piston/cylinder system.
Lower edge of the
bell
Just before the float position, the system increases quickly.
We therefore recommend turning the spindle slowly and evenly clockwise.
 To minimise the effect of friction, move the system up against the weight pieces carefully and make
a turning movement.
Never move the system up and make a turning movement, if the piston is in the
upper block position.
For the lower position consider the following course of action which applies to
all pressure values:
1. Apply approximately 95 % of the test pressure
2. Bring the masses in rotation and increase simultaneously the pressure until
the float position is reached
 The piston and thus the test pressure as well now remain stable for several minutes.

3.2.4 Next pressure level

 To adjust to the next highest pressure, repeat the previous steps from 3.2.1 to 3.2.3
WIKA Operating Instructions Pressure Balance High-Pressure Version 2.5
GB
Marking line for
float position
19
.
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