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detector for fire alarm evaluation. It can be set to a Learning function or via EBLWin
to one of three area alarm algorithms (Normal, Clean or Smoke/Steam area), see
chapter "Advanced mode" page 131.
An alternative area alarm algorithm can be used via a time channel. 4401 has a
green polling LED. Via EBLWin, the green polling LED can be set to either blink
when the detector is polled or never blink. Note, the LED will not be blinking if the
detector is in Test mode.
NORMAL mode: In this mode 4401 has to be programmed in EBLWin as a 4301
detector, i.e. the 4401 detector will work as a replacement of the Analogue
photoelectric smoke detector 4301 (see 4301 above) and has to be set to one of
six alarm algorithms H-15, H-35, L-15, L-35, N-15 or N-35. An alternative alarm
algorithm can be used via a time channel.
9.1.1.4
Conventional Detector Bases (CDB)
2324
Base. A conventional detector is to be plugged in a conventional detector base
2324. Built-in LED is lit to indicate that the detector plugged in the base has
activated fire alarm. Terminals for remote indicator (RIL) are provided.
9.1.1.5
Conventional Detectors
4318
Combination heat detector.
detector class A1R.
temperature min./typical/max. -10/+25/+50°C .
Shall be plugged in a conventional detector base (2324).
4350
Multi detector. This detector is discontinued and will not be replaced. 4350 is a
smoke detector and a heat detector within one housing. Scattered light (i.e.
reflection of infrared light) is used to detect smoke and the heat sensing element
is a thermistor. In order to secure the fire detection and to reduce false alarms, an
AI function is used, i.e.
a. Combined heat and smoke sensing
b. Variable delay function
c. Adaptive learning function
4352
Photoelectric smoke detector. Discontinued and replaced with 4452. Scattered
light (i.e. reflection of infrared light) is used to detect smoke. An advanced alarm
algorithm is used to secure the smoke detection and to reduce false alarms, e.g. a
minimum of nine consecutive readings over the fire alarm level are required before
the detector goes into alarm. (One reading per sec.). To be plugged in a
conventional detector base (2324).
4452
Photoelectric smoke detector. Replaces 4352, see above. Similar to 4352 but 4452
has a little different design compared to 4352 detector (see 4401 above) and the
smoke chamber net has smaller holes. This will keep insects and particles
than smoke particles out of the chamber.
4375
Heat detector. Fixed temperature heat detector, 60°C, class A2S (static response
temp. range 54-70°C), latching, minimum/typical/maximum ambient temperature
-10/+25/+40°C.
To be plugged in a conventional detector base 2324.
4376
Heat detector. Fixed temperature heat detector similar to 4375 but 80°C, class BS
(static response temp. range 69-85°C), latching, minimum./typical/maximum
ambient temperature -10/+40/+60°C. To be plugged in a conventional detector
base 2324.
Rate-of-rise and fixed temperature, 59°C, heat
Static response temperature range 54-65°C, ambient
59
Technical/Programming Manual
FT1020G3 Rev 2.2.1
54
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