Operation; Increasing The Pressure - WIKA CPP7000-X Bedienungsanleitung

6. Commissioning, operation
6.2

Operation

WARNING!
EN
The maximum permissible pressure for the comparison test pump model
CPP7000-X is 7,000 bar (100,000 psi). Higher pressures may damage the pump.
The reference instrument, device under test and any connecting tubes that are
used must not be subjected to pressures above the maximum permissible level.
DANGER!
Do not apply higher pressure than the maximum permitted pressure of the used
accessories. The original accessories are marked with the maximum permitted
pressure.

6.2.1 Increasing the pressure

Information
We recommend unscrewing the spindle pump completely before you start to record
measurement values, (turning anticlockwise) to allow enough volume for
measurements. The low-pressure and high-pressure shut-off valve must be opened
during this process.
The system must first be filled with oil and pre-compressed.
■
For this, the valves must be in the basic position:
o Low-pressure shut-off valve closed
o High-pressure shut-off valve opened
Figure 6.2.1-1 Closing Direction of the valves
18 WIKA Operating Instruction, model CPP7000-X