- 32 -
3) Place a new filter for combustible gas sensor/ carbon monoxide gas sensor on
the sensor packing.
4) Close the sensor cover with four screws.
(Recommended tightening torque: 19cN.m)
CAUTION
Size of Screwdriver
Size No. 2
Size No. 1
NOTE
φ
6
φ
5
When the screws are unevenly tightened, it may affect the waterproof
performance. Tighten four screws evenly and alternately.
NOTE
Make sure the filter for each sensor is fitted properly inside the sensor
packing, as it may affect the waterproof performance.
- 31 -
Replacement of Filter for Each Sensor
Replace a filter for combustible gas sensor and carbon monoxide sensor every 6
months regardless of the frequency of use.
1) Remove four screws and take off the sensor
cover and filter element.
2) Remove the filter for combustible gas sensor and
carbon monoxide gas sensor.
WARNING
Sensor Cover
Filter Element
Sensor Packing
Filter for carbon
monoxide sensor
Filter for
combustible gas
sensor
•
Filter for Combustible Gas Sensor
•
Filter for Carbon Monoxide Sensor
NOTE
0.5mm thick
2mm thick
•
Place the filter for each sensor, filter element and sensor cover
correctly, as it may affect the detection performance or
waterproof performance.
•
Do not push or poke the filter for each sensor. A broken filter may
affect the detection performance.
•
Firmly tighten the screw, as it may lead to water ingress into the
Multi-gas Detector.
•
Ask for repair if the water reaches inside, as it may affect the
detection performance.
Make sure to use a screwdriver
with point size 1 (page 32 for
the shapes).
CAUTION