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Alarm (Basic action)

Alarm sound (buzzer)

  (1) Operation

  (2) Mode setting

Alarm memory

6

OPERATION AND FUNCTION

SET

ON

OFF

AUTO

(ON)

OFF

Application and installation

For the quick detection of the 

fl

ame of lighter / match at no 

smoking zone.

When above setting is not stable.

For the detection of the 

fi

re at 

smoking zone

At the window etc. which is 
subject to re

fl

ection of sunlights.

SET

The following setting is about detection performance.

Detection sensitivity is selectable STD or L.

(STD: Standard setting: Same sensitivity as previous model)

Detection Sensitivity 

SET

Timer

0.2 sec

1sec

6 sec

30 sec

(Factory set : 0.2 sec)

Detection timer

SET

L (50%)

SET

STD (100%)

4 5

Mode selector

1 2 3 4 5

Detection Sensitivity

Alarm Sound
Alarm Memory

Detection timer

1

2

(Factory set : ON)

(Factory set : AUTO)

(Factory set : STD)

3

This product alarms only by detecting the flame continuing 
for the set time of detection timer.
       (0.2sec., 1sec., 6sec., 30sec.)

When the flame continues further, the above alarm actions 
are also continued for the meantime. 2sec. after the flame 
goes out, alarm output stops, and 10sec. after, alarm sound 
and LED stop (off delay). 
Then sensor  goes back to armed mode.

FS-2000E is equipped with 4 functions which can be used 
according to the application or environment.  
Mode setting will be done by mode selector (dip switch) in 
accordance with mode setting chart on the back side of 
sensor unit.

 Installation hole

approx. 5mm

 Marking

Installation hole

This product is equipped with installation holes (pitch 3.29" or 83.5mm) to make
installation easy and the sensor's  direction adjustable.

Buzzer          : Sounds intermittently every 0.2sec.
LED              : Lights on
Alarm output : Continuous

To reset the sensor LED which is blinking or lighting on, 
Detach sensor unit from base unit and attach it again, or 
put off power and on again.  (Power on reset)

When the ultraviolet rays of a flame is weak (it is related to 
size of flame and distance to sensor), alarm initiation may be 
delayed beyond the set time.

The ultraviolet rays are not visible, and may be detected from 
unexpected object.
When the sensor's operation is not stable (it detects something 
but not  a flame) and its cause can not be identified, set 

detection time longer by one step and see the course.

Buzzer can be off by mode selector No.1, when external 
output is used.

When 2 or more sensor are connected on 1 loop, which 
sensor is initiated can be monitored by Memory LED 
(yellow) for 50 min. after alarm output.  Memory LED 
will be off automatically after 3 min. of blinking and 47 
min. of lighting on.
In case that the sensor initiates alarm again while its 
memory LED is lighting, LED continues to light on for 
further 47 min. after that. (re-trigger action)

  [Installation of base]

×

×

Place the base on the site and 
mark 

× 

on 2 points 180

°

apart.

Thrust the 2 pcs. of tapping 
screws (accessory) leaving 5mm 
exposed from the surface.

Adjust the sensor's direction 
by turning the base.
(adjustment range 25

°)

   (4) Tighten the screws.

● 

Installation hole

 (1)

 (2)

 (3)

(

(

This unit detects ultraviolet rays in a flame and issues a 
signal.
In the semi-outdoors, there are many objects which 
generate ultraviolet rays and because there are no walls 
or windows in open area, there is a much higher possibil-
ity for the unit to detect those objects, in comparison with 
indoor installations. 
The detection performance should be set using the dip 
switches according to the circumstances of the installa-
tion site.
When the performance of the installed sensor is unstable 
and the cause cannotbe indentified, select Sensitivity "L" 
and detection time one step longer than current setting.

Detection distance on "L" setting is 50% shorter than that on 
"STD" setting.

If the operation is unstable on "STD", switch to "L".

When installed semi-outdoor, "L" setting is recommended.

An alarm output occurs when the flame continues for set time of 
detection timer or longer.

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