168 • Appendix C: Using the GX-6000 in Leak Check ModeGX-6000 Operator’s Man
-
Setting the Display Range Value
The GX-6000’s Leak Check Mode has 4 display range ppm values to choose from: 500
ppm, 1000 ppm, 2000 ppm, and 5000 ppm.
NOTE:
The GX-6000 is always detecting combustible gas up to 5000 ppm. The display
range value is only adjusting what part of the detection range is displayed on the
LCD.
To change the display range value:
1.
While in Leak Check Mode, press and release the DISP/LOCK button. The display
range value displayed along the bottom of the screen will change.
2 . Continue to press and release the DISP/LOCK button until the desired display range
value is displayed.
3.
The unit is now operating with the selected display range.
Turning the Alarm On and Off
The alarm buzzer can be turned off and on in Leak Check Mode. This setting only applies
to Leak Check Mode and does not affect buzzer operation in Normal Mode. When the
buzzer to turned off,
NO ALARM
appears at the top of the screen. If the buzzer is turned
off, then it will remain off in Leak Check Mode even if you enter Normal Mode and return
to Leak Check Mode or turn the unit off and on unless the buzzer is manually turned on.
To turn the buzzer off or on while in Leak Check Mode:
1 . Press and hold the SHIFT
▼
(PANIC) and RESET buttons for 5 seconds.
2 . Release the buttons when
NO ALARM
appears at the top of the screen.
Locating a Leak
1.
Start up the GX-6000 as described above in “Turning On the GX-6000, Leak Check
Mode” on page 165.
2.
Move the probe tip or tapered nozzle tip back and forth along the area where a leak is
suspected.
3.
Observe the display reading. If the gas level increases, the numerical reading will
increase, the bar graph level will increase, and the beeping and buzzer pulsing
frequency will increase.
4.
Your gas reading may exceed your display range or 100% LEL. For a description of
both scenarios, see the following section.
5.
Use the increasing and decreasing of the reading to locate the leak point.
6.
To exit Leak Check Mode and enter another mode, press and hold the
▲
AIR
and DISP/LOCK buttons for 5 seconds to access the Mode Select
Screen.