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Panasonic Electric Works Fire & Security Technology Europe AB 

 

Jungmansgatan 12, SE-211 19 Malmö, Sweden 

Tel: +46 (0)40 697 70 00 • Fax: +46 (0)40 697 70 99 

[email protected] • www.panasonic-fire-security.com 

Fire alarm systems 

Analog photoelectric 

smoke detector 

4301 

 

Constant sensitivity / Service signal at a fixed level of contamination 

 

New advanced algorithms and functions and yet compatible with older EBL systems 

General 

The photoelectric (optical) smoke detector 
has a low profile design, 

unleaded 

soldering

 and the latest IC technology, 

which will secure the highest reliability 
possible.  In the detection chamber is a high-
efficient optical system consisting of an 
LED and a photodiode with two lenses.  
Scattered light (i.e. reflection of infrared 
light) is used to detect smoke.  The smoke 
enters the detection chamber through an 
insect filter and an optical labyrinth.  This 
construction not only improves the smoke 
inflow but it also causes steam, fog, etc. to 
condense into moisture on its surfaces, to 
prevent false (nuisance) alarms.   
The detector is supplied with two LEDs that 
will light when the detector goes into alarm.  
The detector is plugged in the analog base 
3312x / 4313.  The COM loop is connected 
to the base, which also has terminals for an 
external LED, e.g. 2218. The detector is 
intended for indoor use in dry premises and 
in the systems 

EBL512

 / 

128

 / 1000 / 2000 

depending on the detector mode. 

Constant sensitivity 

The detector maintains a constant sensitivity 
regardless of its contamination.  A service 
signal will be given when the detector has 
reached a service level.   

Address / Detector mode 

The address setting tool 3314 is used to set 
the detector's COM loop address and the 
detector mode NORMAL, 2330 or 2312 See 
Planning Instructions for the system 
respectively for more information about the 
modes and functions. 

 

NORMAL

 mode (analog):  Detector 

4301 is used in the systems EBL512 
(SW version > 2.0) and EBL128, also as 
a spare part for the detector 3304 in 
NORMAL mode. 

 

2330

 mode (conventional):  Detector 

4301 is used in the systems EBL512/ 
1000/2000 as a spare part for the 
detector 3304 in 2330 mode. 

 

2312

 mode (analog):  Detector 4301 is 

used in the systems EBL512/1000/2000 
as a spare part for the detector 3304 in 
2312 mode. 

The different modes have different functions 
and features, e.g. in the 2330 mode, the 
detector does the fire judgement but in the 
NORMAL and 2312 modes this is done in 
the c.i.e.  The detector is prepared for an 
"Advanced mode" to be used in conjunction 
with future EBLxxx SW versions. 

AI function 

In the 2330 mode is the AI function used, 
i.e.: 

 

Variable delay function

, i.e. the delay 

time before an alarm is influenced by 
temporary smoke obscuration changes. 

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