6. Commissioning, operation
WIKA Operating Instruction, model CPP7000-X
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6.1.2
Connecting the test specimen and the reference instrument
WARNING!
Before releasing the closure plugs in the test connections, ensure that the
system (spindle pump turned back completely counter-clockwise, open
high-pressure shut-off valve, open low-pressure shut-off valve) is depressurised.
(see Figure 6.2.1-1 Closing Direction of the valves)
Information
The closure plugs serve to seal off the test connections from oil leaks, or from any
penetrating contamination. It may not be pressurized under any circumstances.
■
The test connections have a knurled nut with a G ¾ female thread, in which various threaded
connecting adapters may be screwed into. 2 threaded adapters with M16 x 1.5 male thread
are included in the scope of delivery as standard equipment:
CAUTION!
Max. torque for device under test and reference instrument and connection
columns:
< 4000 bar
30 Nm
> 4000 bar
45 Nm
Please check also the labeling on the instrument!
Information
Connecting adapters with M20 x 1.5 male thread and 9/16-18UNF male thread with
sealing cone and a connecting adapter with G ½ female thread with an O-ring seal
are available as accessories. (see chapter 11
Accessories
)
DANGER!
The maximum pressure permitted with the use of the G ½ female adapter with an
O-ring seal is limited to 1600 bar (23,200 psi).