GMI GT series - Barhole Testing Mode; Barhole Ranges; Barhole Features

6-1
6
BARHOLE TESTING MODE
This mode is used to locate underground leaks and on start-up will
be ranged to 0-100% LEL Methane (CH
4
) Flammable which will
autorange to VOL Methane (CH
4
) Flammable at 100% LEL.
6.1 BARHOLE RANGES
Barhole testing will have the following ranges available:
• 0 – 100% LEL Methane (CH
4
) Flammable with the
following option:
(to display with 0.1% resolution up to 9.9%)
• 0 – 100% VOL Methane (CH
4
) Flammable
6.2 BARHOLE FEATURES
Barhole mode will have the following features:
• Timed or Non-Timed Sampling.
• Backlight.
• Flashlight.
• Pump control.
• Invert Display.
• Six sets of barhole readings with Viewing / Overwriting.