Low Battery Indicator; Sensor Failure Indicator; Inspection Before Use - Sentry ST313A Instruction Manual

Combustible gas detector
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The tip light is always off after re-start.
Press the Tip Light LED Button to turn on/off the light of
probe tip.

4-2-2 Low Battery Indicator

When the LOW-BATT icon
Read the warning in the section 5-3 carefully and
charge the battery by section 5-4.
If the battery capacity is too low, the detector will
automatically turn off to protect the lithium battery
and electronics.

4-2-3 Sensor Failure Indicator

The sensor failure icon
beep alarm when sensor was misplaced or failure.
Please replace a new sensor by section 5-2 or contact
your dealer.

4-3. Inspection Before use

1. Before operation, please make sure that the
environment is ventilated and no dust on top of
probe.
2. Make sure that there are no factors may cause fire or
explosion at the testing area.
3. Power on the detector and wait for the warm-up step
is finished, then change the sensitivity level to the
high-sensitivity mode.
4. Using the test bottle to test the detector about 0.5
seconds. When the leak activity is found, it means
that the sensor and electronic circuit are working
correctly.
5. If no leakage is found, please check the chapters 5-6
for trouble shooting.
Tip Light LED Button
is appeared:
blinks and gives slow
10

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