HY Technologies B-2661-08 User Manual
User’s Manual
Front and Rear Parking Sensor System
4 Front and 4 Rear In-Bumper Sensors
Wired Digital Distance Display with Built-in Audible Alert
For Cars, Mini-VANs, SUVs, and Small Trucks
MODEL B-2661-08
Copyright 8 2006 HY Technologies y Milpitas y California y USA All Rights Reserved
CE ISO9001
HY Technologies y http://parkingsensors.net y http://parking-sensors.hyt.com
Front and Rear Parking Sensor System
4 Front and 4 Rear In-Bumper Sensors
Wired Digital Distance Display with Built-in Audible Alert
For Cars, Mini-VANs, SUVs, and Small Trucks
MODEL B-2661-08
Included in the Box
¾ 8x Sensors (in-bumper type) with attached
cable and 2-pin mini connector. Cable Length:
Front Sensor = 8.0m (26.2'); Rear Sensor =
2.5m (8.2')
¾ 1x Digital Distance Display with built-in
beeper, On/Off switch, and earphone type plug
with attached cable (6m or 19.7' long)
¾ 1x Main Control Box with 2 double-sided
self-adhesive and Velcro attachment pads.
¾ 1x System Bus Cable (0.78m or 2.6' long) with
12-pin connector on one end, a black and a red
socket on the other end.
Features
¾ Front and Rear Parking Sensor System to
provide good coverage of both front and rear
end of vehicle
¾ 4 front and 4 rear in-bumper sensors to give the
look of factory installed system
¾ Rear sensors are activated while reversing and
front sensors are activated while driving forward
and braking
Specifications
¾ Operating Voltage: DC 10.5 ~ 16V
¾ Detecting Range: Front 0.2 ~ 1.5m (0.66 ~ 4.9');
Rear 0.2 ~ 1.5m (0.66 ~ 4.9').
¾ Measuring Error: ± 0.1m (0.3')
¾ Sensor Detection Angle: 90°
¾ Detection Response Time: 300ms
¾ Audible Alert when obstacle within: 0.1 ~ 1.5m
(0.3 ~ 4.9')
¾ Ultrasonic Frequency: 40Khz
Note: The specifications are for reference only. They may be changed without prior notice.
Tools Needed
Φ21mm drill bit (include), drill, tape measure, chalk or marker, wire stripper, vinyl electrical tape, cable/wire ties,
voltage meter, screw driver set, pliers.
Note: Use a bi-metal 21mm drill bit (not included) if drilling through metal bumpers.
¾ 1x Power Supply Wire for Main Control Box - red
wire with red plug on one end. Cable Length: 6.0m
(19.7')
¾ 1x Signal Control Cable including three wires (red,
white, and black) and a 3-pin connector on one end.
Length: 0.78m (2.6')
¾ 1x Drill Bit - Φ21mm. Note: if drilling through metal
bumpers, you will need a bi-metal Φ21mm drill bit (not
included).
¾ 8x Plastic Rings with wedged thickness
¾ 1 Bag of Cable Ties (15 pieces)
¾ 1x User’s Manual
¾ Wired Digital Distance Display with Built-in Audible
Alert (Beeper) with On/Off Switch
¾ Seven (7) LED Lights on each side of the distance
display to indicate both orientation of obstacles and
Safe/Warning/Stop zone.
¾ Distance display in meters
¾ Designed for cars, SUVs, Mini-VANs, and small trucks
¾ 12 Month Warranty
¾ Audible Alert Volume: 60 db
¾ Maximum Power Consumption: 4W
¾ Current Consumption: 100~300mA
¾ Operating Temperature Range: -30 ~ +70°C
¾ Dimensions of the LED Display: Width x Depth x
Height = 10.0cm x 3.0cm x 2.0cm (3.9" x 1.2" x 0.8")
¾ Dimensions of the Main Control Box: Width x Depth x
Height = 10.5cm x 7.3cm x 2.1cm (4.1" x 2.9" x 0.8")
¾ Distance display in meters
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Fig. 3 Main Control Box and Display Wiring
L2
H
L1 L3 L4
L1
Fig.1 Mounting Height and Position of 4 Rear Sensors
H = 50 ~ 80cm (20” ~ 32”)
L1 = 6 ~ 15cm (2” ~ 6”)
L2 = L3 = L4 or L2 = L4 = 0.3L, L3 = 0.4L
Ground
L
Ground
50 ~ 80cm (20” ~ 32”)
Sensor Center Line
Parallel to Ground
Sensor
Sensor Mounting Height
Fig.4 Mounting Height and Angle of Sensor
4
3
21
L5 L8
L7 L6 L5
H
Fig. 2 Mounting Height and Position of 4 Front Sensors
H = 50 ~ 80cm (20” ~ 32”)
L5 = 6 ~ 15cm (2” ~ 6”)
L6 = L7 = L8 or L6 = L8 = 0.3L, L7 = 0.4L
Ground
L
5
6
78
5 6 7 8
1 2 3 4
BUS
SIGNAL
56
7
8
4
3
2
1
Rear Sensors
Front Sensors
+12V from Ignition Switch (Red)
Display Cable
(Black)
+12V from Back Up Light (Red)
( - ) from Back Up Light (White)
+12V from Brake Light (Black)
0.5
L
R
Digital Display
Built-in
Beeper
Beeper
On/Off Switch
Black Socket
and Plug
Red Socket and Plug
How the System Works
The Parking Sensor System determines obstacle distance by measuring the time needed for the ultrasonic wave
emitted by a sensor to reach an obstacle and for the sensor to receive the ultrasonic wave reflected from the
obstacle. Given the speed of the ultrasonic wave, the system can then calculate and display the distance
between the sensor and the obstacle.
To provide good coverage of both front and rear end of vehicle, the system comes with 8 sensors (4 front and 4
rear sensors). To have the look of factory installed system, the 8 sensors are in-bumper type (to be installed in
the front and rear bumpers by drilling holes through the bumpers). The main control box and display get their
power by tapping into the ignition switch or ACC wires so that the system will work only when the engine is
started or ACC is on. Controlled by the +12V from the back up light, the rear sensors are activated when the
vehicle is put in reverse. Controlled by both the +12V from the brake and the 0V from the back up light (no
+12V applied to the back up lights when in forward driving), the front sensors are activated when the brake is
applied and the vehicle is in forward driving. It is supplied with a wired digital distance display which shows the
exact distance from an obstacle in front or rear of the vehicle. Seven (7) LED Lights (Green/Yellow/Red) on
each side of the distance display indicate both orientation of obstacles and Safe/Warning/Stop zone. The
audible alert (beeper) is built in the display with volume On/Off switch. It beeps faster as vehicle gets closer to
obstacle and sounds continuously when vehicle is within 0.4m (1.3ft) from the obstacle.
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