GX-6000 Operator’s Manual
Appendix D: Using the GX-6000 in Bar Hole Mode • 175
Appendix D: 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 39: Sensor Location Diagram
CO Sensor
H2S Sensor
Oxygen Sensor
H 2 S
C O
LEL Sensor
Smart Sensor 2
Position
Smart Sensor 1
Position