PPC3™ OPERATION AND MAINTENANCE MANUAL
© 2002-2007 DH Instruments, a Fluke Company Page 14
2.4.3 LEAK CHECK
If desired, perform a leak check of the test system (see Section 3.3.9).
2.4.4 PURGE
If an SPLT is included and installed in the test line and the Device Under Test (DUT) may be
contaminated with liquids, perform a purge of the DUT (see Section 3.3.8). The PURGE function
must first be activated (see Section 3.5.7.4). This will rid the DUT of contaminating liquids.
Operating the PPC3 connected to a system with liquid contaminants without taking
proper precautions to purge the system and test line may cause contamination of the
PPC3 that will require non-warranty service.
2.4.5 CHECK PRESSURE CONTROL OPERATION
Select a pressure range using [RANGE] (see Section 3.3.1).
Press [SETUP], <6control>, <2dynamic> (see Section 3.4.6). Then [ESC] back to the
MAIN RUN screen.
Press [ENT]. Key in a target pressure within the active range and press [ENT] again
(see Section 3.3.10).
Verify the maximum pressure rating of the system connected to the PPC3 TEST(+) port
before entering a target pressure. Do not enter a target pressure greater than the
pressure rating of the system connected to the PPC3 TEST(+) port.
PPC3 should set the target pressure and indicate Ready (see Section 3.2.2) continuously in
15 to 60 seconds. If it does not, see Section 6 to troubleshoot.
2.5 SHORT TERM STORAGE
The following procedure is recommended for short term storage of PPC3:
Vent the PPC3 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. Be sure the pressure supply is disconnected or the
vacuum pump is bypassed from the PPC3 EXHAUST port before turning OFF the vacuum pump.
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