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Replacement of Consumable Parts
■
Sensor Unit Replacement
(1) Check that the Gas Detector is turned OFF, remove all 4 AA
batteries, then remove the three screws on the top cover.
(2) Pull the top cover upward slowly. Do not turn the Gas Detector
upside down, and do not remove the top cover roughly.
Otherwise, the sensor unit may fall. The pump unit may be
disconnected, depending on the operating situation of the Gas.
Detector. In that case, remove the pump unit from the top
cover and mount the pump unit to the Gas Detector.
(3) Pinch the head of the oxygen sensor unit on the center side
of the Gas Detector, and slowly pull up and remove the head.
(4) Remove the sensor packing on the oxygen sensor unit and
attach the sensor packing to the new oxygen sensor unit.
WARNING
●
Ensure there are no explosive
gas atmospheres present before
opening the cover or replacing the
sensor.
●
Ensure the new sensor is the
correct part number, manufactured
by New Cosmos Electric Co. Ltd.
(Sensor Model OS3M-SS for XP-
3180, OS3ME-SS for XP-3180E)
※
XP-3000ATEXETO
(Sensor Model OS3M-SS for XP-
3118, XP-3148, XP-3168)
※
XP-
3000ATEXETF
WARNING
During this sensor replacement
procedure, be very careful not to
damage, dislodge, contaminate,
spill any substance on, or otherwise
d i s r u p t a n y o t h e r c i r c u i t r y,
components, or wiring inside the
device, as this may impair intrinsic
safety and may increase the risk of
explosion. Do not separate the front
and back halves of the gas detector
enclosure, as this may impair
intrinsic safety.
CAUTION
Normal gas detection will not be possible
if the sensor packing is not attached.
5. Replacement of Consumable Parts (continued from previous page)
Oxygen sensor unit
Pump unit
Screw
Top cover
Sensor packing
Oxygen sensor unit
