Working With The Menu Items; Self Test; Audio Mode; Dmd (Digital Methane Detection) - Teledyne GAS LASER Operator's Manual

GAS LASER
Working With Menu Items
Please refer to list shown here for the page number location of each menu item.
Self Test...................................page 17
Audio Mode ...........................page 17
Alarm Level ............................page 18
USB ...........................................page 18
Bluetooth ................................page 18
WiFi ......................................... page 19

Self Test

Please refer to page 14 for detailed instructions on performing a Self Test.

Audio Mode

DMD (Digital Methane Detection)

Digital Methane Detection (DMD)
is a highly sophisticated detection
algorithm that greatly enhances the
use of the Gas Laser. The factory
default setting for DMD is Enabled
(on).
While using DMD mode, an audio alarm
will be heard, and on-screen indicators
(flashing/color-changing
and screen border) will be seen when
methane detection occurs.
DMD will indicate
when the PPM-M exceeds the
Alarm Level, or when the reading
is excessive. While the low light
warning is sounding, the Gas Laser
may still be able to detect very large

Audio Warning Indications

The instrument emits a constant
beep to indicate instrument-level
warnings and/or fault conditions.
A warning will also be displayed
on screen. The most common
warnings are:
- Low signal return/low light level
- Over saturation of signal
- Low battery
Doc No. 16162 Rev A, GAS LASER Operator Manual
Data Logging ...................... page 20
Time Zone Offset .............. page 20
Peak History ..........................page 21
Display Background ...........page 21
About .......................................page 21
gas concentrations, indicated by
frequent, fast beeps.
The adjustable Alarm Level controls
the DMD. Your department's scanning
procedure may require the use of a
specific value or procedure to set it.
Set the Alarm Level such that the
false detection rate is low, while not
readings too high that leaks are missed.
detection
If low signal
occurs, then
move in closer to get in range.
If over
up from the target or point the
device at a less reflective surface.
Should the warning(s) persist in
the instrument, check the display
and follow the instructions in the
troubleshooting guide on page 29.
return/low light
change angle or
saturation, then back
17
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Operator's Manual
To turn off DMD mode:
- Press the MENU button
- Select AUDIO MODE
- Select Disabled
NOTICE
NOTICE: DMD Mode will enable
automatically after 5 minutes,
enabling audible and color
border indicators.
WARNING
WARNING: When DMD is
disabled, the instrument
will not alarm with audible
or visible indicators.
AVERTISSEMENT
AVERTISSEMENT: Lorsque
le DMD est désactivé,
l'instrument ne déclenchera
pas l'alarme avec des
indicateurs sonores ou
visibles.