203 • Overview GX-6000 Operator’s Manual
Appendix E: Using the GX-6000 in Leak Check Mode
Overview
This chapter explains how to operate the GX-6000 in Leak Check Mode.
Leak Check Mode is used to pinpoint small leaks of combustible gas from
valves, flanges, connections, and other potential leak points. When the
GX-6000 is in Leak Check Mode, only the catalytic combustible sensor and
potentially the CO sensor, depending on the setting of the CO DISPLAY
parameter in Maintenance Mode, will be active.
NOTE: If the CO DISPLAY parameter in Maintenance Mode is set to ON,
the CO channel will appear in Leak Check Mode. If the CO
DISPLAY parameter is set to OFF (factory setting), the CO channel
will not appear in Leak Check Mode. All screens in this section do
not show the CO channel. If your instrument’s CO DISPLAY is set
to ON, your screens may appear different.
If a GX-6000 is intended for tracking down leaks, it is shipped with Leak
Check Mode or both Leak Check Mode and Bar Hole Mode enabled so that
the operator must choose which operational mode to use when the unit is
turned on (see “Updating the Leak Check/Bar Hole Mode Setting” on
page 164).
Start Up, Leak Check Mode
This section explains how to start up the GX-6000 in Leak Check Mode and
get it ready for operation.
Turning On the GX-6000, Leak Check Mode
CAUTION:If one or more sensors other than a catalytic combustible sensor
is installed, these sensors will not be active while the GX-6000 is
in Leak Check Mode.
NOTE: In order for LEAK CHECK MODE to appear as a selection in the
Mode Select Screen, the L./B. MODE item in Maintenance Mode
must be set to LEAK CHECK MODE or LEAK CHECK MODE
BAR HOLE MODE. The factory setting is OFF.
1 . Connect the tapered rubber nozzle or the sample hose and probe to the
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