Troubleshooting Measures - WIKA CPB 3000 Betriebsanleitung

Pressure Balance
CPB 3000

4. Troubleshooting measures

If faults cannot be repaired, the system must be put out of operation
immediately and this information is to be given to the manufacturer.
Repairs must only be carried out by the manufacturer. Interventions and
changes on the appliance are not allowed.
In case of faults caused by defects of the hydraulic equipment the operators must inform their
superiors immediately and call in the qualified and authorised technical staff for maintenance.
Table: Fault description and measures
Type of fault
I. Unable to build up pressure / leak in the system
II. Unable to build up pressure, or range cannot
be reached
III. Slow lowering of the piston in equilibrium
IV. Piston is not turning or does not respond
readily
Further help can be found through WIKA's Calibration Technology Department.
WIKA Operating Instructions Pressure Balance Version 1.1
Measures
Close shut-off valve for the reservoir
correctly
Check whether the seals have been
placed in the pressure connections and
whether they are properly positioned.
After the clamping of the piston/cylinder
system and the test specimen, air may be
trapped in the system.
Please note: The system should be
vented before beginning with calibration.
For this purpose, proceed according to
section 3.1.5.
Afterwards, build the pressure back up.
If, after the spindle has been fully wound
in in a clockwise direction, there is no
increase in pressure, then the connected
test volume is not yet filled enough and
new pressure medium must be drawn
from the reservoir into the test specimen.
For this purpose, proceed according to
section 3.2.2.
Leak in the system, see fault I.
After the clamping of the piston/cylinder
system and the test specimen, air may be
trapped in the system, see point II.
Afterwards, build the pressure back up.
Attention: If the piston is not turning
easily or "squeaks", do not under any
circumstances force it to turn. Doing so
could cause lasting damage that would
seriously affect measurement properties.
The piston must be cleaned (see section
5.1.1)
GB
.
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