RKI Instruments GX-2003 Manual - Manual (Page 53)

GX-2003 Operator’s Manual Overview • 46
Chapter 5: Using the GX-2003 in Leak Check Mode
Overview
This chapter explains how to operate the GX-2003 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-2003 is in Leak Check Mode, only the
LEL/ppm combustible sensor is active.
If a GX-2003 is intended for tracking down leaks, it is shipped with
Bar Hole Mode and Leak Check Mode enabled so that the operator
must chose which operational mode to use when the unit is turned on
(see “Turning LB Mode Display On or Off” on page 66).
Start Up, Leak Check Mode
This section explains how to start up the GX-2003 in Leak Check
Mode and get it ready for operation.
NOTE: The battery drain is higher in Leak Check Mode than in
Normal Mode or Bar Hole Mode. Extended operation in this
mode will result in shorter battery life than specified in
“Specifications” on page 3.
Turning On the GX-2003, Leak Check Mode
CAUTION: If an oxygen, CO, or H
2
S sensor is installed, these sensors will
not be active while the GX-2003 is in Leak Check Mode.
The following description of the GX-2003 start up sequence assumes
that the following menu items in Setup Mode are turned on: USER/
STATION ID, and CAL. TIME REMAINING. If either of these items is
turned off, then the corresponding screen will not appear.
NOTE: In order for BAR HOLE MODE to appear as a selection in the
Mode Select Screen in Step 3 below, the GX-2003 must have
both a % volume combustible sensor and an LEL/PPM sensor
installed. If a GX-2003 has only the LEL/PPM sensor
installed, then BAR HOLE MODE will not appear as a choice
as shown in Step 3 below and NORMAL MODE and LEAK
CHECK MODE
will be the only choices displayed.