Ei Electronics Ei 181 Ionisation User manual

Shannon Free Zone, Shannon, Co. Clare, Ireland.

Ph.+353 61 471277 Fx.+353 61 471053

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. [email protected]

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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