215 • Overview GX-6000 Operator’s Manual
Appendix F: Using the GX-6000 in Bar Hole Mode
Overview
This chapter explains how to operate the GX-6000 in Bar Hole Mode. Bar
Hole Mode is used to perform consistent checks of bar holes when tracking
down underground gas leaks. When the GX-6000 is in Bar Hole Mode, only
the IR combustible and oxygen (if installed and active) channels are
displayed.
If a GX-6000 is intended for bar hole testing, it is shipped with Bar Hole
Mode enabled so that the operator must choose which operational mode to
use when the unit is turned on.
In order to use a GX-6000 in Bar Hole Mode, an IR CH
4
or an IR HC sensor
must be installed in the Smart Sensor 1 Position in the instrument. Bar Hole
Mode will display an oxygen reading if an oxygen sensor is installed and
active but an oxygen sensor is not required for Bar Hole Mode use.
Figure 45: Sensor Location Diagram
CO Sensor
H2S Sensor
Oxygen Sensor
H2S
CO
LEL Sensor
Smart Sensor 2
Position
Smart Sensor 1
Position
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