Jablotron JS-25 COMBO User Manual - page 2
Notes for the glass break detector operation
a)
The memory function can be used to determine the source of an
alarm in the system. If several detectors are used in one zone, you can
set the MEM/TEST jumper into the MEM position. Then, if this detector
triggers an alarm, the green LED will remain on until the MEM/TEST
jumper is disconnected. The detector operates as usual even while the
alarm memory is indicated.
b)
If there is any automatic device in the protected area which can
generate a loud noise (air conditioning, heating or cooling systems
etc.), ensure that this noise does not trigger the glass break sensor.
If it does, it is necessary to relocate the detector or assure that these
devices will not be on when the security system is armed.
c)
A glass break detector located at the entrance can trigger a false
alarm when the door is opened (air pressure change combined with
keys clinking on the glass or a door’s squeaking can simulate the
sound of glass breaking). It is recommended to connect the glass
break detector into the delay zone of a control panel.
PIR detector lenses
Standard lens that is supplied with the JS-20 Largo detector covers
an area of 120 degrees / 12 meters. See the diagram on the right.
For special applications other lenses can be used. Optional lenses
for long corridors and areas with small animals are supplied
separately.
Pet lens is marked JS-7906. This lens prevents animals smaller
then 40 cm from being detected. The working range of this lens is
reduced to 7 meters. It is recommended to test this lens carefully with
the animal when installing the system, in order to prevent false alarms.
120°
7 [m]
2,5
[m]
max. 40 cm
Corridor lens is marked JS-7904. The working range of this lens is
25 meters long and only 3 meters wide. It is recommended to test the
detector’s sensitivity carefully when installing it into a corridor.
3
25 [m]
2,5
[m]
Examples of the detector wiring
Example of wiring several detectors into one EOL alarm and tamper zone.
Example of wiring the JS-25 into the double EOL zone.
Note: Although this product does not contain any
harmful materials we suggest you to return the
product to the dealer or directly to the producer after
JS-25
-2-
MGD52002
JS-25
-7-
MGD52002