1-2
INTRODUCTIONUSER HANDBOOK
Button Text Reference
LH (INVERT): LH button
Centre (RANGE): Centre button
RH (PUMP): RH button
Up: UP button
Down: DOWN button
The bottom line of the
instrument display may
indicate button press options.
For example, to select ‘Yes’
from the following screen
option, you would press the
RH button. To select ‘No’, the
LH button would be pressed.
The principle of selecting any one of three options on the bottom
line of the instrument display, by pressing either LH, CENTRE or RH
buttons, is used throughout the operation of this instrument.
1.1 INSTRUMENT RANGES
The detection ranges, available but which may not all be included in
the version of
GT
selected by your company, are:
• 0-10,000 ppm Methane (CH
4
) Flammable - Sniffer Range
• 0-100% LEL Methane (CH
4
) Flammable
• 0-100% VOL Methane (CH
4
) Flammable
• 0-25% Oxygen (O
2
)
• 0-2000 ppm Carbon Monoxide (CO)
• 0-100 ppm Hydrogen Sulphide (H
2
S)
• 0 to 60 in. Water Gauge (0 to 150mBar)
Fig 1.3 Option Select
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