Operating instructions
1.0 Introduction
The Thermo Scientific
™
leak detector is specifically designed for use with gas
chromatography (GC) systems. It detects minute leaks of any gas with a thermal
conductivity different from air. The reference gas inlet (Figure 1) draws in ambient air for
comparison to air drawn into the sample probe. A leak is indicated by both an LED light
display and an audible alarm.
If this instrument is used in any manner other than described in the manual, the CE
declaration is void.
Leak Detector LED Indicator Display and Interpretation
Unit State -
Powered
On/Off
LED Color
LED State
Interpretation
Unit Battery
State
On
Blue >
Red & Yellow
On/Blue flashes
once, red and yellow
cycle for 15 seconds/
Off
Unit is powering on and running
startup sequence
On
Blue
On/Steady
Ready for use, battery does not
require charging
On
Blue
On/Constant
Flashing
IMPORTANT: Unit must be
charged
Power Button
Depressed
NONE
NONE
Battery has fully discharged,
charge immediately
Unit Charging
State
On/Off
Green
On/Flashing
Unit is plugged in to the AC adaptor
or USB cable and is charging a very
low battery (trickle charging)
On/Off
Green
On/Steady
Unit is plugged in to AC adaptor
or USB cable and is in full charge
mode
On/Off
Green
Off
Unit is plugged into AC adaptor
or USB cable and the unit is fully
charged
Unit Operation
On
Red or Yellow
On/Steady
Unit is indicating a difference in
thermal conductivity between probe
and reference
On
Red & Yellow
On/Cycling for
4 seconds/Off
Zero set button has been depressed
and unit is rezeroing
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