Installing The Piston/Cylinder System - WIKA CPB 3000 Betriebsanleitung

Pressure Balance
CPB 3000

3.1.3 Installing the piston/cylinder system

The piston/cylinder system that is used depends on the device to be tested. You should select a
system with a comparable or higher range.
Example:
Calibration of a 600-bar pressure gauge
Calibration of a 160-bar pressure gauge
Before releasing the closure plug on the instrument base, make sure the system
is not under pressure (open the shut-off valve of the reservoir).
Before connecting the piston/cylinder system, the system should be vented. For this, oil is pumped
into the system by opening the left pressure connection by carefully turning the star handle in a
clockwise direction. It should be turned until oil appears at the O-ring seals of the open pressure
connection and no more air bubbles are escaping. The shut-off valve on the reservoir must be
closed. The shut-off valve of the test specimen connection must be opened and the blind plug must
be mounted into the test specimen connection.
Place the piston/cylinder system vertically in the left pressure connection, and firmly tightened
using a flat wrench with SW 32. An O-ring seal is already fitted, so no additional sealing material is
required.
Check the O-ring seal in the pressure connection for proper seat and for any
wear. Replace, if necessary (see chapter 8. Accessories).
For an exact alignment of the device, the water level may be removed from the basement plate and
placed on the top of the clamped piston/cylinder system. This will ensure the most accurate
referencing of the piston/cylinder system.
3.
1.
WIKA Operating Instructions Pressure Balance Version 1.1
600 bar Piston/cylinder system
250 bar Piston/cylinder system
Here put on
water level
O-ring
(see accessories section 8.)
2.
GB
.
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