DH Instruments PPC2+, Manual

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PPC2+™ Operation and Maintenance Manual
Page 41
©2001 DH Instruments, Inc.
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OPERATION
To access the HEAD function, press the [HEAD] function key. The display is:
1. Test gas currently specified for the head correction.
2. Entry field for head height.
Entering a value of zero turns the HEAD function OFF. Entering a value other than zero
turns the HEAD function ON using the height entered. Pressing [ESCAPE] returns to the
main run screen with no change to the current head setting.
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3.2.8 LEAK CHECK/PURGE
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PURPOSE
The [LEAK CHECK] function key accesses two functions:
•
The LEAK CHECK function to assist in checking the pressurized connections and
device or system under test connected to the PPC2+ TEST port for leaks (see
Section 3.2.8.2).
•
The PURGE function to use the optional Self Purging Liquid Trap (SPLT) to collect
and exhaust liquid contaminants from the device or systems under test before they
reach the PPC2+ (see Section 3.2.8.3).
95 cm N2