Bedienungsanleitung Jablotron JS-25 (Seite 1 von 2) (Englisch)

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JS-25 COMBO PIR & glass break detector - 1 - MGD51303

JS-25 „COMBO“ P.I.R. & glass break detector

The JS-25 COMBO is an outstanding “two in one” detector, which

dramatically simplifies alarm installations.. This detector combines two

sensors (P.I.R. motion & acoustic glass break) in one housing. It provides

three independent outputs (P.I.R. alarm, glass break alarm and tamper).

The signal from the P.I.R. sensor is electronically analyzed. This ensures

that the detector provides excellent sensitivity and at the same time false

alarms are basically eliminated. The detection analysis rate can be adjusted

to increase its immunity if the JS-25 is installed in a problematic location. The

standard lens in the detector can be replaced with an optional corridor or pet

immune lens.

The dual technology glass break detector analyses air pressure changes

and sounds to detect the breaking of a glass window. The signal processing

guarantees a high sensitivity to the breaking of all types of glass. The

sensitivity can be adjusted to match various window sizes and mounting

distances. A memory feature enables the user to determine, visually, which

detector triggered the alarm.

For testing, the JS-25 is equipped with two LED indicators (red confirms

a P.I.R. alarm, green confirms a glass breaking alarm).

The COMBO distinguishes itself as a unique 2 in 1 solution with excellent

RF immunity.

Installation

The detector is designed for indoor applications. It can be mounted on a

flat wall or in a corner. Do not place the detector close to any heating/cooling

vents or near any other object that often changes temperature. Do not place

the detector close to any apparatuses that can generate air pressure

changes, low frequency noise or vibrations. The unit must have an

unobstructed view of the protected area and glass.

1. Open the cover of the detector (press in the plastic tab on the bottom

with a screwdriver).

2. Disconnect the cable connecting the front cover with the main PCB.

3. Remove the main PCB by pressing the flexible tab.

4. Punch through the pre-formed holes for cables and screws.

5. Attach the housing to the wall (2.5 meters above the floor).

6. Return the PCB into the housing and connect wires to the terminals.

7. Re-connect the cable and attach the cover.

Note: Avoid touching the P.I.R. sensor!

Terminals

+12V, GND power supply

PIR, PIR P.I.R. alarm output (normally closed)

TMP, TMP TAMPER output (normally closed)

GBS, GBS glass break alarm output (normally closed)

Jumpers

LED the red PIR indicator can be disabled by opening this jumper

DETECTION removing this jumper enables a higher rate of analysis and

increases the immunity of the PIR detector. This setting is

suitable for problematic locations with temperature changes or

electromagnetic interference.

MEM/TEST sets the green LED glass break indicator. In the TEST position,

this LED indicates air pressure changes by a quick flash and an

alarm triggering by a long flash. In the MEM position the LED

indicates a broken glass alarm memory. When the jumper is

disconnected, the green LED is disabled.

PIR detector testing

 After switching on the power wait for 1 minute. During this period the

detector initializes and stabilizes its parameters (red LED will be on if not

disabled).

 Each detected movement will be indicated by the detector’s red indicator (if

not disabled).

 Check if the detector covers the protected area as you expected.

Glass break detector testing and adjustments

Set the MEM/TEST jumper to the TEST position (green LED will indicate

the triggering).

 Strike carefully the glass with a cushioned instrument.

Attention, do not break the glass!

 The green LED will flash shortly after a strike, if the air pressure sensor

sensitivity is suitably set. The sensitivity can be adjusted using the variable

resistor. Do not adjust too an excessively high sensitivity.

 For complete testing of the detector it is recommended to use the GBT-212

glass break simulator. The green LED will light for 2 seconds if glass

breaking is detected.

glass break detector working range diagram

Notes for the glass break detector operation

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.

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.

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

Sandard lens that is supplied with the JS-20 Largo detector covers

an area of 120 degrees / 12 meters. See the diagram on the right.

Jablotron JS-25 Anleitung

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