Lexing LX928 Datasheet

LX928 SMOKE DETECTOR USING
INSTRUCTION
The product is a new type of photoelectric smoke detector, When it detects smoke, it will output signal
immediately and trigger connected unit to work, which tell you in advance that fire will occurs and avoid
unwanted loss, and take you safety and convenience.
Specification
Power supply: DC12V~DC24V
Static current(like following diagram):
Working current: 16mA~17mA
Working temperature:-10?~40?
Where fit to install smoke
detector
lAt first, you need install one item in every bedroom and route way at least.
lStairway is important for you to rush out when fires occur, so there must install smoke detector on the
top of stairway.
lYou at least require one smoke detector in every space of every floor, including finished attics and
basements.
lInstall one detector beside every electric facility.
lyou’dbetter Install smoke detectors in the middle of ceiling, because smoke always spread up;
lIf some reasons cause you can’t install them in the middle of ceiling, you also need to install them at
least 10cm away from the wall.
lIf you like to install them on the wall, they should be installed 10-30.5cm away under the ceiling.
Diagram 1.
lYou need install more than one detector when the
length of your hall exceeds 9m.
lIn an oblique roof room, install the detector 0.9m away from the top. Diagram 2.
lHow to install smoke detectors in a removable house. The removable house is short of heat
isolation, so
you’d better install the detector 10-30.5cm away from the ceiling.
Where not fit to
install smoke detector
lWhere combustion are permitted to produce. For example unventilated kitchens,garages,and furnace ;
lnear fanner;
lIn very damp, humid or steamy areas: Keep units at least 3m away from showers saunas, dishwashers,
etc.
lIn very dusty,dirty,or greasy areas;
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l
In very drafty areas, where smoke
will be blown away from the unit completely,
lin air-logged areas, that will clog the sensing chamber;
lLess than 305mm away from fluorescent lights. Electrical “noise” can interfere with the sensor.
lIn “dead air” space, for example, in Diagram 1, near the corner less than 10cm.
lin smoking meeting room, don’t install the detector there for the unit will be triggered when several
persons smoke.
Connection-wire diagram
Installation(like right above diagram)
lPress and hold the base and turn it counterclockwise, take down base;
lAccording to the number mark on base and connection-wire diagram, connect wire to number
corresponding screw with gasket;
lFix the base on the selected position;
lCover the detector body: make the short line on the base aim at the long line on detector body and turn
clockwise until the long line on base aim at the long line on detector body.
Test
lSwitch on power, the indicator should flash once every about 7sec;
lUse magnet to attract inner pole reed pipe on the opposite position of
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indicator, the indicator should always light;
lIf the indicator doesn’t always light, please check if the magnet using is correct.
lSimulating smoke test: blow smoke into detector, the indicator flashes quickly and then always light.
Regular maintenance
lTest it at least once a week.
lClean the smoke detector at least once a month. Gently vacuum off dust using vacuum’s soft brush
attachment;
lNever use water, cleansers to clean your smoke detector since they may damage the unit.
Limitation of smoke detector
lit can only tell us that fire will occur so that you can deal with the fire in time and have more time
avoiding great loss.
lit is not safe absolutely, because it can not detect smoke absolutely, during smoke appear if there is
block to obstruct smoke or smoke is taken off by air current, smoke will not reach the smoke detector.
lit is not fire extinguisher and also can not sense fire, so you should have the fire-fighting devices to help.
What to do when fire occur
lDial telephone to the fire control office.
lDon’t feel panic, keep calm. Go through the route way planned in advanced and leave as quickly as
possible, don’twaste much time to take things.
lFeel whether the door is hot or not. If hot, don’t open the door; if not, you also should prevent the flame
in and you can choose other route way to flee.
lWith wet towel cover your mouth and nose, don’t inbreathe smoke.
lAfter fleeing out ,gather in the indicated place and ensure person is not injured or dead.
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CHINA NINGBO LEXING INDUCTOR ELECTRONIC CO.,LTD.
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2007
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