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Technical
Index - Photain Index
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| * Low Profile Aesthetic Design |
* Dual Chamber Single Ionisation Source |
| * Surface Mounted high reliability technology |
* LED Alarm Indication |
| * Integral Locking Facility |
* Remote indicator connection |
| * Advance immunity against insect ingress |
* Surface and Recess Base Mounting |
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The ISD ionisation type smoke detector is capable of
detecting products of combustion even before the presence
of visible smoke.
This detector is the result of extensive development
and work, with stability and reliability as the primary
objective, while at the same time maintaining the sensitivity
requirements of the major approving authorities.
The chamber automatically compensates for changes in
humidity, temperature and pressure.
The objective was achieved having a fully encased solid-state
printed circuit incorporating a high level of protection
against electrical interference and line transients.
A high level of immunity to air draughts has also been
built in to this detector.
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Detector type:
Products of combustion smoke detector
Detection principle:
Ionisation chamber
Chamber configuration:
Balanced chamber, single radioactive source
Radioactive isotope:
Americium 241
Maximum activity:
0.9 microcuries
(33.3 kilo becquerels)
Supply voltage:
15 - 30vDC
Quiescent current:
Less than 60 microAmps
Alarm current:
Max 100mA |
Alarm indicator:
Red light emitting diode illuminated continuously
Remote alarm output:
Rated at 50mA max.
Sensitivity:
Responds to all types of fire tests as per EN54 Part7
Temperature range:
-10 to 75° C
Humidity:
Up to 95% R.H.
Wind:
Up to 15m/s maximum continuous
Altitude:
0-6000 metres
Vibration:
To EN54, Part 7, annex L
Impact:
To EN54, Part 7, annex O
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Shock:
To EN54, Part 7, annex N
Electrical transients:
500v spikes rise time 2 microseconds
Weight:
Detector: 105grammes
Base: 75grammes
Dimensions:
Detector in Base Assembly
Height: 60mm
Diameter: 108mm
Colour:
White
Environmental Protection
IP32
Technical compliance:
This detector is approved to EN54-7, BS5445 Part 7. |
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