Ei Electronics Ei181 User Manual
Shannon Free Zone, Shannon, Co. Clare, Ireland.
Ph.+353 61 471277 Fx.+353 61 471053
Email. eielectronics@eiltd.ie
Web: www.eielectronics.com
E & OE As our policy is one of continuous product development, we reserve the right to alter product details without prior notice. Ei181 DataSht RevB
Model Ei 181 Ionisation
High sensitivity – responds to all standard fires
Dual Ionization chamber - quick response fast
flaming fires
Supply voltage 10.5 to 30 volts
Interconnect up to 12 alarms
Relay contacts
Built in sounder
Test button
Kitemarked to BS EN 14604:2005
5 year guarantee
Product Description
The Ei181 is an Ionisation Smoke Alarm that is designed
to operate with suitable 8-30 volt control panels and to
provide a loud local alarm.
Ionisation smoke alarms operate on the principle that
electrical current flowing between electrodes in an
ionization chamber is reduced when smoke particles
enter.
Ionisation technology gives a rapid response to fast
flaming fires
Relay contacts (normally open and closed supplied) are
available for triggering the panel itself and its associated
ancillary products, such as extra loud sirens, magnetic
door holders, etc.
The alarms can be interconnected so that when one
alarm senses fire, all the units located throughout the
premises sound.
Battery back-up insures the units are always powered,
even during a power failure.
The Ei181 is easily installed and comes supplied with all
necessary screw fixings.
Operation
The smoke detector will activate the built in sounder
upon sensing smoke particles
The smoke detector will automatically reset itself
and silence the sounder when smoke particles are
no longer present in the sensing chamber
The built in sounder will provide a minimum sound
output of 85dB at 3m
The “Test” button will perform a self test and sound
the horn (it may take up to 10 seconds)
Green power on LED –flashes every 40 seconds
Circular Easi-Fit mounting base for quick installation
Relay operates in continuous or pulse mode
Shannon Free Zone, Shannon, Co. Clare, Ireland.
Ph.+353 61 471277 Fx.+353 61 471053
Email. eielectronics@eiltd.ie
Web: www.eielectronics.com
E & OE As our policy is one of continuous product development, we reserve the right to alter product details without prior notice. Ei181 DataSht RevB
Model Ei181 Ionisation
Installation & Placement
Alarms should be placed in accordance with the general guidelines shown in
the diagram above. These recommendations are based on the problem of
areas of “dead air” close to corners of rooms and apexes of ceilings, which
could result in the prevention of smoke reaching the smoke detector
Please consult the Instruction Leaflet supplied with the Ei181 for detailed
instructions as to how to correctly install and position the smoke detector
Important Precaution:
Do not install the actual smoke/heat
alarm itself in new or renovated
buildings until all work is completed
(including floor coverings) and the
building has been fully cleaned.
(Excessive dust and debris from
building work can contaminate the
smoke chamber and cause
problems, and it will also invalidate
the guarantee). If it must be
installed, cover it completely,
particularly around the edges, with
a dust cover (eg. a plastic bag),
until all cleaning is finished..
Technical Specification
Sensor Ionisation, uses electrically
charged ions that will react
to smoke particles
Sensitivity: Complies with BS 5446 Part 1:
2000
Source: Americium 241
Airspeed: Essentially immune to the effect
of airspeed.
Button Test: Simulates the effect of smoke and
checks chamber, electronics and
horn.
Supply Voltage: 10.5 to 30 volts
Alarm: Piezoelectric-horn
in unit
Alarm Sound Output: 85dB (minimum) at 3m
Temperature Range: 0 to 40°C
Humidity Range: 0% to 90% Relative Humidity
Fixing: Screw fixings supplied
Plastic material: UL94HB flame retardant
Dimensions: 145 diameter 65 mm height
Weight: 334 gram
Warranty: 5 year (limited) warranty
Approvals: Kitemarked to BS EN 14604:2005,
CE Approved
Specifications are subject to change
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