2.
Install the batteries positive (+) side first, with the correct polarity, as shown
below.
Setting the Dip Switches
The detector has user-selectable dip switch settings as
shown.
Dip Switch 1– Not Used
Dip Switch 2– Level 1/Level 2 Detection
This is a sensitivity selection dip switch which may be
used to optimize false alarm immunity for certain acous-
tic environments.
The detector is factory set for Level 1 detection (Dip
Switch 2 = OFF). This is the highest sensitivity setting
for the detector, and will be suitable for most applications.
For rooms which are smaller, and contain a significant number of sound-reflective
surfaces (such as bathrooms, kitchens, entrances, etc.), Level 2 detection (Dip
Switch 2=ON) provides a reduced sensitivity setting which may be more appropriate.
Selecting a Mounting Location
The detector is omnidirectional, providing 360 degree coverage. Coverage is mea-
sured from the center of the detector to the point on the glass farthest from the detec-
tor.
Guidelines for optimizing detection and avoiding false alarms
•
For optimum protection, the detector should have a direct line of sight to the
protected glass.
•
Window coverings will absorb sound from the shattering glass. In these cases,
mount the detector as close as possible to the protected glass, either on an
adjacent wall, the ceiling, or behind the window covering if possible.
•
The detector should be mounted at least 1.8m (6 feet) off the ground.
•
Do not mount the detector on the same wall as the protected glass.
•
Avoid installation near noise sources, such as speakers or other objects which
produce sounds continuously.
•
Do not install the detector beyond the maximum recommended range, even if
the AFT–100 simulator shows additional range - future changes in room
acoustics could reduce the range.
•
Application on 24 hour loops should be avoided unless the location is
unoccupied.
•
Test false alarm immunity by creating any sounds in the room which will likely
occur when the alarm system is armed.
Note: Test the detector thoroughly for proper placement using the AFT-100
Glassbreak Simulator. Other simulators may trip the unit, but will not provide
accurate test results.
Testing the detector
Perform the following tests with each WLS912L detector to ensure that it is mounted
in the best possible location.
Detection Test:
1.
Place the detector in test mode by
momentarily pressing down on the tab on
the base plate, as shown. The LED will blink
periodically to indicate that it is operating in
test mode. You can end the test mode by
momentarily pressing the tab on the base
plate. Test mode will end automatically after
10 minutes.
2.
Use double-sided tape to temporarily mount the detector in the selected location
Note: The detector will not respond to the glassbreak simulator unless the test
mode operation has been enabled by momentarily pressing down on the test
mode tab on the base plate.
3.
At the window to be protected, test the detector using the AFT–100 Glassbreak
Simulator. The AFT–100 Glassbreak Simulator generates plate or tempered
glass sounds. Use the plate glass setting if you are unsure of the glass type.
Observe the following when testing the detector:
• If the WLS912L detects the sound generated by the AFT-100 three times
in a row, the detector is in a good location. If the detector does not
respond each time, relocate the detector and repeat the test.
• If the windows in question are covered by drapes or blinds, place the
AFT-100 tester behind the closed window coverings, and then activate it.
If the drapes prevent reliable detection, we suggest that the detector be
mounted behind the drapes either on an adjacent wall or on the ceiling.
• If there are multiple windows, or one large window, activate the tester at
the furthest point on the glass from the detector.
Receiver Test:
You also need to perform a Module Placement Test to ensure that the selected loca-
tion is in range of the wireless receiver (see the Placement Test instructions in the
installation instructions for your receiver).
1.
Press and hold the test mode tab for 5 seconds
2.
Release the test mode tab. The keypad will display the test result.
Enrolling the WLS912L
On the back of the detector, there will be two serial numbers: a five-digit number and
a six-digit number. Please refer to your receiver installation manual for information on
which serial number should be enrolled.
NOTE: If using a WLS900 system, you must use the five-digit serial number.
