GX-2003 Operator’s Manual
Start Up, Normal Mode • 23
soon as possible.
9. The GX-2003 is now operating in Normal Mode and monitoring
for gas in Measuring Mode. The Normal Operation Screen
appears.
The concentrations of the target gasses are displayed along with the
time and battery charge level. If an “N” appears next to the battery
icon as illustrated above, the GX-2003 is being powered by Ni-MH
battery pack. If no “N” appears, then alkaline batteries are powering
the unit.
Turning On the GX-2003 in Normal Mode
With All Modes Active
If the LB Mode item in Setup Mode is set to ON (see “Turning LB
Mode Display On or Off” on page 72), then the user must select
Normal Mode during the start up sequence to operate in Normal
Mode. See “Chapter 4: Using the GX-2003 in Bar Hole Mode” on
page 45 for a description of Bar Hole Mode and “Chapter 5: Using the
GX-2003 in Leak Check Mode” on page 52 for a description of 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: LUNCH
BREAK, USER/STATION ID, and CAL. TIME REMAINING. If any 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.
1. Connect the tapered rubber nozzle or the sample hose to the GX-
2003’s quick connect inlet fitting.
2. If a sample hose is used, screw the probe onto the sample hose’s
threaded fitting.
CH4 0%LEL
OXY 20.9VOL%
H2S 0.0ppm
CO 0ppm
21:09 N
