19 • Overview GX-6000 Operator’s Manual
Chapter 3: Operation
Overview
This chapter explains how to use the GX-6000 to perform confined space
entry monitoring or general area monitoring in Normal Mode. There are three
operational modes in Normal Mode: Measuring Mode, Display Mode, and
Calibration Mode. While in Normal Mode, the unit is normally operating in
Measuring Mode. Display Mode and Calibration Mode are accessible from
Measuring Mode. Display Mode is described in this chapter. Calibration
Mode is described in “Chapter 4: Calibration Mode” on page 68.
The GX-6000 can also operate in Leak Check Mode and Bar Hole Mode. See
“Appendix E: Using the GX-6000 in Leak Check Mode” for operating
instructions for Leak Check Mode. See “Appendix F: Using the GX-6000 in
Bar Hole Mode” on page 215 for operating instructions for Bar Hole Mode.
Start Up
This section explains how to start up the GX-6000, get it ready for operation,
and turn it off.
NOTE: The screens illustrated in this section are for a standard 4-gas + PID
unit. The screens displayed by your GX-6000 may be slightly
different.
Turning On the GX-6000
To illustrate certain functions, the following description of the GX-6000 start
up sequence assumes that the following menu items in Maintenance Mode
are turned on: LUNCH BREAK, CAL REMINDER, BUMP
REMINDER, and ID DISPLAY. If any of these items are turned off, then
the corresponding screens will not appear.
The GX-6000 may be used with a sample hose and probe or with the tapered
rubber nozzle. Determine which configuration works best for your
application.
NOTE: When the sample hose is not being used, its outgassing
characteristics may result in a small buildup of gas to which the PID
sensor will respond. If a sample hose has been sitting unused for a
period of time, when that sample hose is connected to a GX-6000,
the PID channel may temporarily show a reading. The reading will
return to a fresh air reading after all of the built up gas has been
drawn out of the sample hose.
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