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4
4.
How to Use
4-1. Before using the detector
Follow the operating precautions. Ignoring the precautions may damage the unit, resulting in inaccurate
gas measurement.
4-2. Preparation for start-up
Before use, read and understand the following precautions. Ignoring these may cause inaccurate gas
detection.
• The batteries are installed (with sufficient battery level).
• Check that the taper nozzle and filter are not contaminated.
• Check that the taper nozzle is not bent or has no hole.
4-3. How to replace the batteries
When the detector is used for the first time, or when the battery level is low, install two new AA alkaline
batteries according to the following procedures.
1
Check that the power of the
detector is turned off.
Turn off the power if it is turned on.
2
Turn the lock plate
counterclockwise and open the
battery cover.
3
Remove old batteries and then
put new batteries while
observing the correct polarity.
4
Close the battery cover and
turn the lock plate clockwise to
lock.
Battery cover
Lock plate
Polarity of
dry battery
Dry battery
