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5
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black
Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
INSTRUMENTS
INSTRUMENTS
Operating Instructions
Switch on the Combustible Gas Leak Detector by sliding the ON/OFF but-
ton and the READY light is glowing. The gas leak detector runs through a
one-minute warm-up and self-zeroing sequence when it is first turned on
in fresh air. The alarm of the instrument may be very loud without contact
with any gas, that is caused the initial preset sensitivity.
Rate (Sensitivity) Adjustment
Each time the instrument is put into service, you should conduct a quick
functional test. Adjust the tick rate to non-alarm level. Then, simply ex-
pose the sensor to a known leak, like a cigarette lighter, or pass the probe
over a drop of combustible fluid. After the initial warm-up, the instrument
can be used to detect combustible gases. When the sensor in the probe
tip detects a combustible gas, the tick rate will increase and the instru-
ment sounds a warbling tone while the ALARM light. As the concentration
of gas increases, so does the tick rate.
If the situation calls for quiet operation, or if background noise makes it
difficult to hear the built-in speaker, you can use an earphone. The jack
is at the top of the instrument. Note that listening to the alarm or tick
through the earphone is very loud.
If the READY light is off, the batteries are low. They should be replaced
immediately. Low batteries will adversely affect the instrument’s reliability.
See battery replacement procedures.
Adjusting the Tick Rate (Sensitivity)
The tick rate tells you when the sensor (in the tip of the instrument) is
getting close to a gas leak. You can control the tick rate using the rotary
wheel in the center of the instrument.
• Move the wheel clockwise to increase the frequency
• Move the wheel counter-clockwise to decrease the frequency
A tick rate of 4 to 8 ticks per second, in fresh air, is typical. As the sensor
comes near a combustible gas source, the tick rate increases. In order
to isolate the source of a leak, you may need to move the wheel counter
clockwise, decreasing the sensitivity, as the sensor moves closer.
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