Proper Use; Technical Description; Functional Description - Waeco MAGIC WATCH MWE-850-4DSM Instrucciones De Montaje Y De Uso

magic watch
4

Proper use

MAGIC WATCH is an ultrasonic reverse warning system. When reversing, it
monitors the space behind the vehicle and provides an audible and visible
warning signal for any obstacles it detects.
Since MAGIC WATCH is designed merely as an additional aid for reversing,
it does not relieve you of the duty to take proper care when reversing.
MAGIC WATCH is designed for installation in cars.
5

Technical description

5.1

Functional description

MAGIC WATCH consists of four built-in sensors, a controller and a display
with an integrated piezoelectronic speaker for audible and visible warning
signals. The display can be installed on the dashboard or on the boot cover.
It measures distances based on the echo time principle. The four sensors
constantly emit ultrasonic signals when you reverse.
The sensors contain both transmitters and receivers, and capture any ultra-
sonic signals reflected by obstacles. The distance to the obstacle is calcu-
lated using the echo time, and signalled by the speaker using a sequence of
impulse tones. The closer the obstacle approaches, the faster the succes-
sion of warning tones.
The DSM (digital signal memory) function creates a space profile during the
measurement, which records any small fixed objects (such as trailer cou-
plings). This means these are not signalled as obstacles. The system only
signals an obstacle when the space profile changes.
The distance from the obstacle is signalled on the display using three differ-
ent coloured LED groups, each one consisting of two LEDs. So, in the same
way as traffic lights, the distance is signalled using green, yellow and red,
where an obstacle is at the closest distance when the red LEDs light up.
The sensors are installed on the bumper. The sensors may be painted but
not with a multiple-coat paint as this impairs their functionality.
Since the sensors are equipped with their own amplifiers, you can extend the
connection between the sensors and the controller to up to 20 m.
Proper use
33