Service explanation for JS-20LARGO
1 Installation
This detector is designed for indoor use. The detector can be mounted on a flat wall or in a corner. Do not place the detector near an air conditioner or near a heater or any other object that causes a temperature change. The detector must have a full and open view of the area to be protected.
1. Open the detector housing (press the plastic button on the bottom of the housing with a screwdriver).
2. Remove the circuit board by pressing the button on the inside of the housing
3. Push through the pre-punched holes for the cables and screws.
4. Attach the enclosure to the wall (2.5 meters above the ground).
5. Place the circuit board back in the rear housing and connect the cables to the inputs and outputs
6. Install the housing.
Note: Avoid damaging the PIR sensor!
2 Terminals
+12V, GND power supply
PIR, PIR PIR alarm output (normally closed)
TMP, TMP TAMPER output (normally closed)
GBS, GBS auxiliary connections – useful for connecting the wires (see examples)
3 Jumpers
LED The LED indicator can be disabled by opening this jumper
DETECTION By opening this jumper you can set a higher analysis speed and improved immunity of the detector. This setting is suitable for problematic locations with unexpected temperature or magnetic field changes. The detector's reactivity will be slightly slower with this setting.
4 Testing the detector
· After the detector is turned on, wait 1 minute. During this period the detector tries to initialize and stabilize its parameters (LED will be on)
· Any detected movement will be indicated by the LED.
· Confirm that the detector covers the area to be protected within its detection range.
5 Lenses
Standard lens supplied with the JS-20 Largo detector covers an area of 120 degrees / 12 meters
Other lenses can be used for other detection properties. Optional lenses for long corridors and small animal areas sold separately.
Pet lens JS-7906. This lens prevents animals smaller than 40 cm from being detected by the detector. The range of the detector has been reduced to 7 meters. It is recommended to test the lens with the animal during installation to avoid false alarms.
Corridor lens JS-7904. The range of this lens is 25 meters land and 3 meters wide. It is recommended to carefully test the sensitivity of the detector during installation.
6 Wiring
