Instruction manual

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c. Carbon Monoxide - 35ppm per utility industry standards
d. Hydrogen Sulfide - 10ppm and above per Federal OSHA
guidelines
e. Hydrogen Cyanide - 4.7 and above per Federal OSHA guide-
lines
Caution: There are gases that can poison or be cross
sensitive to the combustible gas sensor. Contact SENSIT
Technologies for cross-sensitivity information.
11. To disable the alarm, quickly press the POWER/MUTE
BUTTON (A). To enable the alarm press the same button again.
During an alarm the gas that has exceeded the preset alarm
point will flash on the display and the HAZARD 3 LED will flash
indicating a potentially unsafe condition. When combustible gas
readings exceed the alarm range, all LEDs (except green and
red HAZ3) will turn off. If the alarm condition no longer exists, the
alarm sound will activate if a new alarm condition is encoun-
tered.
12. To assist in locating small leaks press and release the TICK/
MENU BUTTON (B). Press the SAVE/ZERO BUTTON (C) until
SELECT TEST TICK is displayed. Push the TICK/MENU BUT-
TON (B) to activate the tick.
Upon activation a tick can be heard and a full bar graph is dis-
played. As the sensor head is moved toward a leak source the
tick will increase. At any time press the TICK/MENU BUTTON
(B) to reset the speed of the tick to the slow, steady rate. The
bar graph will decrease in size indicating a decreasing range of
tick rate sensitivity. Each bar division (there are 5) represents
approximately 5000ppm methane.
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MENU BUTTON (B) to reset the tick so that is audible.
Pressing the POWER/MUTE BUTTON (A) disables the tick
As the sensor moves away from the gas source press the TICK/
function.
NOTE: Whenever possible use the instrument prior to us-
ing a leak detection solution.
13. At any time the operator may save the readings on the
display by pressing the ZERO/SAVE (C) button. This will save
all readings for download at a later time. The memory is factory
set to store 100 events. This can be adjusted from 1-100 at the
factory. The most recent save is first during download. An op-
tional Auto log software of extended memory can store up to
1,600 records. (Consult factory for details.)
14. Following Federal, State, Municipal and/or Company proce-
dures move to the areas where gas readings are suspected or
must be tested. Use necessary accessories to draw samples
from areas not accessible with the instrument itself, such as
confined spaces or flues. During sampling, the respective read-
ings may change. Audible and visual alarms will activate when
the preset limits are reached.
15. When equipped with the percent volume sensor, if the in-
strument encounters a gas it is not calibrated to, it may read
“NSR” or “NSC” followed by a number. If the instrument is cali-
brated for natural gas “NSR” (Non Standard Response) likely
indicates a heavy non combustible gas (i.e.: heavier than air,
such as carbon dioxide, etc.). If the response is “NSC” Non
Standard Combustible) the gas is likely a heavy hydrocarbon,
such as gasoline, propane, butane, etc. If the instrument is
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