Digital Security Controls Ltd. 00433904 사용자 설명서

Each motion detector is supplied with the Wall-to-Wall lens; three additional
lenses are available for the WLS904L motion detector. The charts on this
page illustrate the range and coverage patterns of each lens.

To change the lens, first open the motion detector by removing the screw in
the bottom of the battery compartment. With the screw removed, pull the
back of the detector away from the front case.

Remove the lens holder by pressing down on the top of the holder and pulling
the holder away from the case. When installing the new lens, ensure the
grooved surface faces the interior of the case, and the notches on the lens face
the bottom of the case. Replace the lens holder by snapping it back into place.

Reassemble the motion detector by first engaging the clips on the bottom of
the case. Close the case and then secure the case with the screw in the
bottom of the battery compartment.

Wall-to-Wall Lens

Pet Alley

DSC Model BV-L1

DSC Model BV-L4

Range: 50' L × 60' W (16 m × 18 m)

Range: 50' L × 60' W (16 m × 18 m)

50 ft

15.2 m

0 ft

0 m

15 ft

4.6 m

15 ft

4.6 m

30 ft

9.1 m

30 ft

9.1 m

50 ft

15.2 m

TOP VIEW

SIDE VIEW

50 ft

15.2 m

0 ft

0 m

15 ft

4.6 m

15 ft

4.6 m

30 ft

9.1 m

30 ft

9.1 m

50 ft

15.2 m

TOP VIEW

SIDE VIEW

Corridor Lens

Curtain Lens

DSC Model BV-L2

DSC Model BV-L3

Range: 120' L × 10.5' W (36.5 m × 3 m)

Range: 50' L × 4.4' W (16 m × 1.3 m)

The motion detector features Fast and Slow detection
modes, which are set on jumper J1. Jumper J1 is set at the
factory for the Fast detection mode. In a normal operating
environment, this setting provides the best detection.

In certain environments where rapid air movement, heaters
and other variables present problems, use Slow detection
mode to stabilize the detection.

Jumper “J1” is located in the bottom right corner of the
circuit board. To change the setting from Fast to Slow,
move the jumper over one pin, as shown in the diagram.

To prolong battery life, the motion detector uses a feature called High Traffic
Shutdown. When motion is detected, the device will transmit to the receiver
and will then shut down for three minutes. If motion is detected again during
the shutdown time, the unit will not transmit the event to the receiver. The
detector will thus remain in the shutdown mode until three minutes after the
first motion detected was transmitted. The detector will transmit detected
motion every three minutes.

The High Traffic Shutdown Mode affects testing the motion detector in two ways:

When performing the 

, the unit must be tampered by

removing the unit from the backplate and replacing it. The placement test
cannot be performed by creating motion in front of the device.

When performing a 

, the unit must be left idle for three minutes

before testing can be performed. Once three minutes has passed, create
motion in front of the detector to see if the device is both detecting motion
and transmitting to the receiver.

A motion detector transmission is always delayed by five seconds. This is
necessary to prevent false alarms caused by a motion sensor transmitting
before a delay zone has a chance to report. This five-second delay cannot
be altered or disabled.

The motion detector has a walk test mode which will activate an LED for
testing purposes. During normal operation, the LED will not turn on.

To put the detector in walk test mode, create a tamper by removing the
detector from its backplate and then replacing it. Each time the detector
senses motion, it will turn on the red LED. Five seconds after motion is
detected, the detector will send a signal to the receiver, and the LED will
flash rapidly 5 times. The detector will be in walk test mode until it has sent
10 transmissions.