DH Instruments PPC2 AF - Check Proper Pressure Control Operation; Short Term Storage

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PPC2 AF OPERATION AND MAINTENANCE MANUAL

2.4.6 CHECK PROPER PRESSURE CONTROL OPERATION

Select a pressure range using the RANGE function (see Section 3.2.1).

Press the CONTROL function key and select "dynamic" (see Section 3.2.3).

Select1Vac under 1ControlRef of the SETUP menu if a vacuum supply is connected to the

PPC2 AF EXHAUST port, otherwise, set 2Atm (see Sections 3.3.1).

Press ENTER, specify a target pressure within the current range to be set and press ENTER

again (see Section 3.2.3).

PPC2 AF should set the target pressure and indicate "ready" (see Section 3.1.2.4)

continuously in 30 to 60 seconds. If it does not, see Section 6.

2.5 SHORT TERM STORAGE

The following is recommended for short term storage of PPC2 AF:

• Vent the PPC2 AF test pressure.

• Turn the power "off" using the rear panel power switch.

• Shut-off or disconnect the pressure supply.

• Shut-off or disconnect the vacuum supply.