RKI Instruments Gas Tracer - Manual (Page 99)

Gas Tracer Operator’s Manual Overview • 91
Chapter 4: Using the Gas Tracer in Bar Hole Mode
Overview
This chapter explains how to operate the Gas Tracer in Bar Hole
Mode. Bar Hole Mode is used to perform consistent checks of bar
holes when tracking down underground gas leaks. When the
Gas Tracer is in Bar Hole Mode, only the combustible and oxygen
channels are displayed.
If a Gas Tracer 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.
NOTE: Units intended for bar hole testing are typically calibrated to
methane. In addition, the unit must have a %volume
combustible sensor installed.
Start Up, Bar Hole Mode
This section explains how to start up the Gas Tracer in Bar Hole Mode
and get it ready for operation.
Turning On the Gas Tracer, Bar Hole Mode
WARNING: If a CO sensor is installed, this sensor will not be active
while the Gas Tracer is in Bar Hole Mode.
WARNING: Gas alarms are not active when the Gas Tracer is in Bar
Hole Mode.
The following description of the Gas Tracer start up sequence
assumes that the following menu items in Maintenance Mode are
turned on: LNCH BRK, ID DISP, CL RMNDR, and BP RMNDR. 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, the L./B. MODE item in Maintenance
Mode must be set to bH or LC bH.
1. Connect the sample hose to the Gas Tracer’s quick connect inlet
fitting.