WIKA CPB3800 - Handbuch (Seite 28)

28 WIKA operating instructions model CPB3800
14062232.03 12/2013 GB/D
GB
6. Commissioning, operation
2. Release the pressure and remove the test instrument.
To remove the instrument from the system, use the appropriate size
of spanners on the top section of the pressure connection and on the
body of the instrument only. Ensure that the lower part of the pressure
connection is not rotated as this may release it from the base.
3. The system is now ready for use.
CAUTION!
If the volume required to be filled is very large requiring the use of an
additional pump and reservoir to be connected to the model CPB3800,
it is ESSENTIAL to ensure that valve B is kept open and valve A closed
at all times otherwise a high pressure can be built up on the low pressure
ram of the screw press and damage caused. To ensure this does not
happen we can supply the system fitted with a relief valve, which will
release at a set pressure, should the valve operation be incorrect.
Alternatively, we can supply a modified system and hand pump for this
operation. For further information on both items contact DH-Budenberg/
WIKA.
When testing equipment with a large volume, the capacity of the spindle
pump (65 cm³) may be insufficient to reach the pressure required. In this
case, the equipment should be filled as far as possible with the liquid
before connecting it to the system, so that the displacement needed is
reduced.
Dirty or chemically contaminated test items should not be fitted as they
contaminate the system unless they are first cleaned.
Wear safety goggles!
Protect eyes from flying particles and liquid splashes.
6.6 Procedure
1. Fit instrument to be tested to gauge stand.