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39 • Overview GX-2003 Operator’s Manual

Chapter 4: Using the GX-2003 in Bar Hole Mode

Overview

This chapter explains how to operate the GX-2003 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-2003 is in Bar

Hole Mode, only the combustible and oxygen sensors are displayed.

If a GX-2003 is intended for bar hole testing, it is shipped with Bar

Hole Mode and Leak Check Mode enabled so that the operator must

chose which operational mode to use when the unit is turned on (see

“Turning LB Mode Display On or Off” on page 66).

Start Up, Bar Hole Mode

This section explains how to start up the GX-2003 in Bar Hole Mode

and get it ready for operation.

Turning On the GX-2003, Bar Hole Mode

WARNING: If a CO or H

S sensor is installed, these sensors will not

be active while the GX-2003 is in Bar Hole Mode.

WARNING: Gas alarms are not active when the GX-2003 is in Bar

Hole Mode.

The following description of the GX-2003 start up sequence assumes

that the following menu items in Setup Mode are turned on: USER/

STATION ID, and CAL. TIME REMAINING. 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 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. In this

case, see “Turning On the GX-2003 in Normal Mode With All

Modes Active” on page 17 or “Turning On the GX-2003, Leak

Check Mode” on page 46.

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RKI Instruments GX-2003 Betreibershandbuch Seite 46