DH Instruments PPC2+, Manual

Page: 23 / 166

PPC2+™ Operation and Maintenance Manual
Page 15
©2001 DH Instruments, Inc.
2.4.4 PURGE
If the SPLT is included and installed in the test line, perform a purge of the Device Under
Test (DUT). This will rid the DUT of contaminated liquids and enable descending pressures to
be controlled (see Section 3.2.8).
9ZO\K^SXQ^RO::-MYXXOM^ON^YK]c]^OWaS^RVS[_SNMYX^KWSXKX^]aS^RY_^^KUSXQZ\YZO\
Z\OMK_^SYX]^YZ_\QO^RO]c]^OWKXN^O]^VSXOWKcMK_]OMYX^KWSXK^SYXYP^RO::-^RK^
aSVV\O[_S\OXYXaK\\KX^c]O\`SMO
2.4.5 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).
Press [ENTER]. Specify a target pressure within the active range and press [ENTER] again
(see Section 3.2.3).
PPC2+ should set the target pressure and indicate Ready (<*>) (see Section 3.1.2.4)
continuously in 15 to 60 seconds. If it does not, see Section 6.
2 . 5 S H O R T T E R M S T O R A G E
The following is recommended for short term storage of PPC2+:
•
Vent the PPC2+ 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.