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WIKA operating instructions hydraulic high pressure controller, model CPC8000-H
PN 0018708001B 11/2020 EN
EN
5.2.4 Measure/Control test port prefilling
The Device Under Test must be filled with the hydraulic media to perform to the rated specifications. If there is not an designed
user designed method to prefill the DUT, the following method may be used.
1. Install the test device and tubing to the Measure/Control port of the CPC8000-H.
2. Loosen a fitting furthest away from the CPC8000-H Measure/Control port.
3. Power the CPC8000-H instrument on and connect pressure to the Supply port.
4. Enter the lowest setpoint available and press Control. This will begin the priming sequence in the CPC8000-H.
5. A mixture of air and liquid will leak out of the loosened fitting.
6. Once the air is released from the system, a steady stream of liquid should appear at the loosened fitting.
7. Tighten the fitting and place the instrument in Vent mode.
8. Enter the maximum CPC8000-H primary range or the DUT maximum range, whichever is lower and confirm that the
CPC8000-H can control to the maximum pressure.
9. If the controller fails to reach the maximum pressure, there may be a leak or more trapped air in the system.
10. Repeat steps 2-7 if you suspect more air is trapped in the system.