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should be installed strictly according to this user manual or be
installed by qualified professional personnel.
3 MAINTENANCE
3.1 Other gases' influence on the product
The following gases make cause false alarm or damage the sensor:
Methane, propane, isobutane, ethylene, ethanol, alcohol, isopropanol,
benzene, toluene, ethyl acetate, hydrogen, hydrogen sulfide and sulfur
dioxide. Almost all the Aerosol spray, alcoholics, paint, thinner, solvent,
binder, hair spray, aftershave, perfume, car exhaust (cold start) and
some cleaning detergents.
When the product is exposed to the gases mentioned above, it may
make false alarms or be damaged permanently. When alarms are
activated and you smell irritating gas, it may be false alarm because
CO is colorless and odorless. Put the product in clean air, if it's still
in alarm condition 30 minutes later, then that means the product has
been polluted. You should place the power-off unit in clean air for a
long time. If the product can't recover 24 hours later, then it means
the sensor has been damaged and please don't use the product any
more.
IMPORTANT : If the product is polluted by other gases, place the
power-off unit in clean air. If the product can't recover 24 hours later,
please don't use the product any more.
3.2 Cleaning and maintenance
The product must be kept clean when used, or its performance will
be influenced and even may cause damage to the alarm. It shall be
cleaned and tested once a month in the following way.
3.2.1 Remove dust with vacuum cleaner.
3.2.2 Rub the surface with wet soft cloth which has been wringed out.
3.2.3 Press the TEST button and make sure the detector woks
properly, then reinstall it to use.
Don't clean the alarm with chemical like alcohol, petrol, cleanser, etc.,
or it may cause damage to the alarm.
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