Teledyne 2240 - Portable Handheld Hydrogen Leak Detector, 3rd generation (revision 2/29/08) User Manual
Page 19

Handheld Hydrogen Leak Detector
Startup and Operation
Teledyne
Analytical
Instruments
9
decreasing and the sensor has moved away from the hydrogen
leak.
4. Moving the sensor back towards the potential location of the
hydrogen leak will cause the Probe Tip LED to turn red.
5. Continue moving the sensor into the area that causes the Probe
Tip LED to turn red until the source of the hydrogen leak is
located.
The color of the Probe Tip LED indicates:
GREEN: Unit ready, hydrogen concentration is less than
0.001% (10ppm)
ORANGE: System startup or hydrogen detected (0.001 to 100%)
RED:
New peak hydrogen concentration detected
The number of yellow LEDs powered on in the Probe LED bar
graph indicates hydrogen concentration as shown in Figure 2-5.
Figure 2-5: Hydrogen Concentration Indication at the Probe Tip
Figure 2-6 shows the Probe Tip indicating a peak hydrogen
concentration detected greater than 10%. The Prob Tip LEDs will be red
and four yellow bar graph LEDs will illuminate.
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