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Description

Specifications

Parking Control System Double Channel Vehicle Loop Detector Car Detector Sensor

> Output relays: 230V AC, 115V AC, 24V DC/AC, 12V DC/AC (See the label on the detector)

> Reaction time: 100ms

> Size of Housing: L78 x W40 x H108mm

What is Loop Detectors?

The PD-232 is a single channel inductive loop detectors. The principle is based on a change in the inductance within the loop which is caused by the metallic components of passing vehicles. The changes are picked up and evaluated by a microprocessor. Ease of use thanks to automatic calibration when the operating voltage is applied.

Application Scope:
Parking lot entrance vehicle detection;
Pakring lot space information acquisition system
Electronic police traffic lights snap shot system
Traffic monitoring system

Main Features:
Double coil model can realize vehicle driving direction detection
High temperature stability
Cail automatic fault detection function
Can be used with barrier gates realize anti hit a car function
Can be used with the barrier gates realize car go automatic swithc-off function

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.

Frequency
To eliminate interference of two neighbouring wire loops or loop detectors, the frequency can be altered.

Sensitivity
The sensitivity of the detector allows the detector to be selective as to the change of inductance necessary to produce an output. There are four sensitivity selections and are set as follows by DIP3 and DIP4 Switch.

Supply voltage	230V AC, 115V AC, 24V DC/AC, 12V DC/AC (See the label on the detector)
Loop Quantity	2
Sensitivity	adjustable in 4 increments (high .medium high. medium, low)
Operating temperature	-20°C ~ 70°C
Storage temperature	-40°C ~ 85°C
Frequency range	20KHz ~ 170KHz
Reaction time	100ms
Loop inductance	Ideal:80μH ~ 300μH (incl. conn. wiring): max: 50μH ~ 500μH
Loop connection	<5m optimal
Loop connection wiring	Maximum length 200 meters
Twisted at least 20 times per meter
Dimensions	78x40x108mm
Net Weight	350g