SENSIT Technologies GAS-TRAC LZ-30, Инструкция по эксплуатации

Страница: 17 / 36

17
OPERATION AND USE
6. Using the visible targeting laser, survey the area according to federal,
state, municipal, and/or company procedures. Observe the readings
on the display and any alarm conditions that should occur. In general,
it is good practice to conduct investigations
using an ‘S’ or ‘Z’ pattern
to maximize the area that is scanned.
7. If at any time the instrument gives a low or high reflection warning,
indicated by
REF/L
or
REF/H
on the display as well as an audible tone,
try a different angle, position, or distance in order to increase or
decrease the amount of reflected light. These messages indicate that
the instrument is not getting an appropriate amount of reflected light.
Be aware that not all surfaces may be suitable for reflection.
NOTE
: The relative signal strength of the reflected
signal is indicated on the display next to the fuel
gauge.
8. If at any time the instrument displays
HIGH METHANE
, this is an
overload message indicating that you are detecting gas greater than
the upper detection limit of the instrument (50,000 ppm
•m).
9. To stop a measurement, press and release the
MEASURE
button
again.
10. To access the user menu, press and release the
ON/MENU
button.
The user menu cannot be accessed if a measurement is currently
active. See the User Menu section of this manual for more details.
11. To power off the instrument, press and hold the
OFF/BACK
button. A
brief animation will show. Keep the button held down until the screen
goes blank.