WIKA CPH7600 - Handbuch (Seite 33)

33 WIKA operating instructions, model CPH7600
14051628.01 11/2012 GB/D
GB
6. Commissioning, operation
3. Open the vent key and zero the calibrator. Then close the vent after resetting the
calibrator.
4. The top of the display will indicate "CLOSE".
5. Apply pressure with the pressure side slowly until the pressure switch opens.
In the switch test mode the display update rate is increased to help
capture changing pressure inputs. Even with this accelerated sample
rate the device under test should be charged slowly with pressure in
order to ensure accurate readings.
6. Once the switch is open, "OPEN" will be displayed; bleed the pump slowly until the
pressure switch closes.
7. In the top display it will now read "SW OPENED AT" and give you the pressure at
which the switch opened.