The Informant™ 2
10
0019-9211 Rev 9
CAUTION:
When using the refrigerant sensor, note
that exposing this sensor to a steady stream of highly
concentrated refrigerant will severely reduce sensor
life or damage the sensor. Sensor life is directly
proportional to the amount of refrigerant that passes
through the sensor.
As for the combustible sensor, exposing it to a high
concentration of combustible gas may temporarily make the
detector less responsive to lower gas levels. If this occurs,
move the detector to an area of fresh air for several minutes
to purge the sensor of gas.
Use the following general procedure to pinpoint the source of a leak:
1. Move the probe tip along the lines that are carrying gas and around
the fittings until the detector responds in a positive manner.
2. Continue moving in the same direction as long as the detector’s gas-
level LEDs remain at full scale. This indicates that the gas
concentration is increasing.
3. Once the source of the leak has been passed, the detector’s gas
level indicators will all begin to decrease. At this point, reverse the
direction of probing. As the probe tip is moved back and forth across
the leak, the detector will automatically adjust its sensitivity to allow
the user to pinpoint its source.
2.9. Sensor Failure Indication
A sensor failure is indicated by the middle gas-level LED on both
displays glowing steady. Refer to the
Troubleshooting Guide
Section of
this manual for information on how to clear this condition.
2.10. False Refrigerant Indication
False refrigerant indications are usually caused by abnormal changes in
sensor temperature. These temperature changes are typically due to a
sudden change in air flow past the sensor, or the sensor being heated by
an outside source. To avoid false refrigerant indications, DO NOT . . .
•
allow the probe tip to become clogged with dirt,
•
allow the probe’s filter to become covered with water,
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