
21
OPERATION AND USE
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
encountered.
12.
To assist in locating small leaks press and release the TICK/MENU
BUTTON (B). The SELECT TEST TICK is displayed. Push the TICK/
MENU BUTTON (B) to activate the tick.
Upon activation a tick can be heard and a full bar graph is displayed. 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.
MENU BUTTON (B) to reset the tick so that is audible. Pressing the
POWER/MUTE BUTTON (A) disables the tick
NOTE:
Whenever possible use the instrument prior to using a leak
detection solution.