WIKA CPP1000-M Mode D'emploi page 14

Hand Spindle Pump
CPP1000-M/-L
Table: Fault description and measures
GB
Type of fault:
I. Unable to build up pressure/leak in
the system
II. Unable to build up pressure, or
maximum pressure cannot be
reached
III. Slow pressure drop
Further help can be found through WIKA's Test & Calibration Technolgy Department.
14
Measures:
Close shut-off valve of the reservoir
■
correctly
Check whether the seals have been
■
placed in the pressure connections and
whether they are properly positioned.
After the mounting of the test specimen
■
and the reference instrument, air may be
trapped in the system.
Please note: The system should be vented
before beginning with calibration. For this
purpose, proceed according to chapters
3.1.2 to 3.1.4.
Afterwards, build the pressure back up.
■
NOTE: For calibration cycles with larger
volumes, it is advisable to fill the test speci-
men, and if necessary, the reference instru-
ment with operating liquid beforehand or to
use the shut-off valve for test connection,
which is available as an accessory (see
chapter 9. Accessories).
Leak in the system, see point I.
■
If small amounts of air are always
■
compressed in the system together with
the medium, the test pressure that has
been generated first drops off slightly.
After this it must be readjusted.
If the system is pressurised quickly, it
■
takes a certain time (<1 minute) until it can
stabilise thermally. The pressure should
then be adjusted accordingly.
After the clamping of the test specimen
■
and the reference instrument, air may be
trapped in the system, see point II.
Afterwards, build the pressure back up.
■
WIKA Operating Instructions Hand Spindle Pump