WIKA CPB3800 - Handbuch (Seite 42)

42 WIKA operating instructions model CPB3800
14062232.03 12/2013 GB/D
GB
8. Faults
Faults Causes Measures
Equipment provides
pressure but pressure
decays when valves A
and B are operated.
Incorrect operating procedure
being used.
Ensure that correct operating
procedure is being followed (see
chapter 6.6).
If unable to locate a cause. Return pressure balance to DH-
Budenberg/WIKA for investigation.
Equipment provides
pressure but pressure
decays to lower value
then remains steady.
Insufficient liquid in pressure bal-
ance.
Check liquid level in reservoir. Fill
reservoir with correct liquid as
necessary (see chapter 6.5.1).
Air in the system Prefill component under test with
appropriate liquid. If necessary re-
fill pressure balance with appropri-
ate liquid.
If unable to locate a cause. Return pressure balance to DH-
Budenberg/WIKA for investigation.
Internal damage Return pressure balance to DH-
Budenberg/WIKA for investigation.
Incorrect operating procedure
being used.
Ensure that correct operating
procedure is being followed (see
chapter 6.6).
If unable to locate a cause. Return pressure balance to DH-
Budenberg/WIKA for investigation.
Pressure balance
screw press becomes
very stiff to operate
when pressure
balance is being
used in range below
140 bar (2,000 lb/in²)
Internal damage Return pressure balance to DH-
Budenberg/WIKA for investigation.
Pressure balance
screw press becomes
very stiff to operate
when pressure balance
is being used in
range above 140 bar
(2,000 lb/in²)
Incorrect operating procedure
being used.
Ensure that correct operating
procedure is being followed (see
chapter 6.6).
If unable to locate a cause. Return pressure balance to DH-
Budenberg/WIKA for investigation.