20
WIKA operating instruction, model CPP120-X
EN
08/2020 EN/DE
6. Commissioning, operation
6.4.2 Connection of external pressure/vacuum supply
WARNING!
Physical injuries and damage to property and the environment caused
by incorrect air/gas supply
Improper handling can result in considerable injury and damage to
equipment.
▶
Use only dry, clean and oil-free gases (e.g. nitrogen cylinder)
▶
Use a pressure reducer to reduce the supply pressure.
⇒
The supply pressure should be just above the required working
pressure max. 120 bar [1,740 psi].
▶
Do not use oxygen in the tester.
▶
If no suitable pressure supply is available use a hand test pump for
pressure or vacuum supply.
CAUTION!
Damage of the test item or reference pressure measuring instrument
caused by too high pressure supply
▶
Ensure that the inlet valve
3
is closed and outlet valve
4
is open before
the CPP120 is pressurised with initial pressure.