Single Channel Vehicle Loop Detector 220VAC for Barrier Gate
Parking System
A.Application Scope :
A1)Parking lot entrances vehicle detection ;
A2)Parking lot space information acquisition system ;
A3)Electronic police traffic lights snap shot system ;
A4)Traffic monitoring system .
B.Main Characteristics:
B1) Supply voltage AC: 220V, 110V, 24V, 12V
B2) Supply voltage DC: 24V, 12V
B3) Sensitivity: adjustable in 3 increments (high .medium. low)
B4) Storage temperature: -40°C to +85°C
B5) Reaction time: 100ms
B6) Loop connection wiring: Maximum length 200 meters,
B7) Twisted at least 20 times per meter
B8) Net Weight: 300g
- Install Detector:
The detector must be installed in a convenient weatherproof
location as close to the loop as possible. Installation location
must choose to stay away from the heat source, it around other
devices must maintain a distance of at least 10mm (mustn't fix
cling to the cabinet). A correct loop configuration and detector
installation will ensure a successful inductive loop detection
system. Loop of several important parameters include: loop figure,
size, and turns, install methods (details as "Loop installation
guide").
- Operation and Indication:
While the detector is tuning, the green Channel LED and red Power
LED will be turn on. It remain about 2 seconds, then the green LED
turn off. If a loop fault exists the Channel LED will come on and
flash indicating a fault. If the fault is self-healing the detector
will continue to operate. The green channel LED will also glow
whenever a vehicle is detected passing over the inductive loop. The
red Power LED at the top of the unit will remain on to indicate
that the unit is powered.
- Output Relay:
The relay2 is pulse output. If DIP7 is "OFF" site, when a vehicle
is detected passing over the inductive loop, the relay is
energized( Pin3 and Pin4 is shorted) and de-energized ( Pin3 and
Pin4 is opened) after 500ms. If DIP7 is "ON" site, when a vehicle
is detected departing the loop, the relay is energized ( Pin3 and
Pin4 is shorted) and de-energized ( Pin3 and Pin4 is opened) after
500ms.
The relay 1 is presence output. When a vehicle is detected passing
over the inductive loop, the relay is energized( Pin5 and Pin6 are
shorted) until the vehicle is detected departing the loop.
- Presence Time:
The presence time may be set to permanent presence or to limited
presence. In permanent presence mode the detector will continuously
compensate for all environmental changes whilst there is a vehicle
present over the loop, the presence mode is set with DIP8 Switch
and is configured as follows: OFF:Limited Presence ( 10 minutes),
ON:Permanent Presence.
- Reset Switch :
The detector automatically tunes to the inductive loop connected to
it when the power is applied, whether on initial installation or
after any break in power supply. Should it be necessary to retune
the detector, as may be required after changing any of the switches
or after moving the detector from one installation to another,
momentary operation of the RESET switch will initiate the automatic
tuning cycle.
