Proper Use; Technical Description; Function Specification; Detection Range - Waeco MagicWatch MW150 Instrucciones De Montaje Y De Uso

MW-150.book Seite 25 Freitag, 6. Januar 2006 11:21 11
MagicWatch MW150
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Proper Use

MagicWatch is reverse supervisory unit based on ultrasonic. It checks the
place behind the vehicle during reversing procedures and warns acoustically
against obstacles, which are detected through the device.
MagicWatch provides an assistance when reversing, however, it does not
relieve you from your special caution required when reversing.
MagicWatch has been laid out for assembling in passenger cars.
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Technical description

6.1

Function specification

MagicWatch consists of two ultrasonic sensors, one control unit and one
piezo-speaker. The assembling of the piezo-speaker takes place near the
hat rack or luggage compartment covering.
The measurement of distance is based upon the echo-transit-time principle.
Both sensors continuously emit ultrasonic signal pulses while reversing.
The sensors operate both as transmitters and as receivers, which receive
again the beamed and reflected ultrasonic signals from possible obstacles.
The distance from the obstacle is evaluated through the transit time of the
ultrasonic signals and is indicated by sequence of pulse tones of the piezo-
speaker. The closer the obstacle, the faster the sequence of pulse tones.
6.2

Detection range

The detection range of MagicWatch is split into three zones (see fig. 4,
page 4).
Zone 1
This zone ist the first limit range: small or badly reflecting objects may not
be detected.
Zone 2
In this zone nearly each obstacle is indicated.
Zone 3
In this zone nearly each obstacle is indicated, but objects can get into the
blind angle of the sensors
Proper Use
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