MKII-xx Installation Guide
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17/10/2017
Zeta Alarms Limited, 72/78 Morfa Road, Swansea, SA1 2EN
SPECIFICATION
EN54-5/7 approval
Supply Voltage: 10.5~33V
Alarm Current: 35-45mA at 24 volts
Quiescent Current: 70uA Maximum
Smoke Sensitivity: 0.08 dB/m - 0.12 dB/m
Temperature class: A2R (for MKII-HR); A2S (for MKII-HF) , CS (for MKII-HF/CS90)
Humidity Range: 0% to 95% Relative Humidity, non condensing
Maintenance Information
Fyreye Mk II detectors are generally installed as part of a fire alarm system.
Servicing of the system should be carried out in accordance with the requirements of the local code of practice for
fire alarm installations, eg. BS 5839 Part 1, Fire Detection and Alarm Systems for Buildings: Code of Practice for
System Design, Installation and Servicing.
The frequency of inspection testing will be based on a risk assessment of the installation, but should be no more
than 6 months between visits.
Over a 12 month period every detector should be functionally tested, using suitable equipment to generate smoke
or heat (EG the Solo range from No Climb Products)
All Fyreye Mk II conventional smoke detectors have an IR transmitter that periodically transmits chamber data.
This allows the detectors sensor status to be checked with a Sensitivity Test Wand.
Cleaning
Cleaning a smoke detector can prolong its working life. The detector can be cleaned with:-
A hand held vacuum cleaner
A clean air line or a “duster” aerosol
A lint free cloth.
The effectiveness of cleaning will depend on the operating environment of the detector. Depending on timescales
& financial considerations, detector cleaning may not be a practical option.
When to replace a detector
A detector should be considered as needing to be replaced if:-
The detector does not respond to a functional test
If the detector has had an unexplained activation*
If the detector has been in service for more than 10 years**
* In some cases it may be sensible to leave a detector until a second unexplained activation, but consider the extra
service costs and perceived system integrity if this is done.
** Many detectors will continue to function adequately way beyond 10 years service. Balance the frequency of
unwanted alarms, with the cost of replacing detectors when making this decision.
0832
Zeta Alarms Limited, 72-78 Morfa Road, Swansea SA1 2EN
17
0832-CPR-F0067/F0069/F0071/F0073/
F1922
EN54-5:2000+A1:2002
Heat detectors — Point detectors
EN54-7:2000+A1:2002 + A2: 2006
Smoke detectors — Point detectors using scattered light,
transmitted light or ionization
MKII Conventional detectors
MKII-OP, MKII-OH, MKII-HR, MKII-HF, MKII-HF/CS90
Other Technical Data: See Doc: “MKII-xx LPCB, MKII-xx/CS LPCB”
held by the manufacturer
