Detection to Stop Function Vehicle PD132 Loop Detector 24v for Smart Parking System

PD132 loop detector Selling point

• Two-way output relays
• Lightning and surge protection
• Two high intensity LED indicators
• 4 grades sensitivity adjustable - gives the user the ability to select the best sensitivity level
• 4 frequency settings provide flexibility in preventing crosstalk in multi-loop applications.
• Large loop inductance range from 50μH to 1000μH

PD132 loop detector Function & feature

• Reset Switch
• Filter Option
• Pulse output or permanent output can be adjustable.
• Frequency is adjustable in 4 increments
• Sensitivity is adjustable in 8 increments

Application

• Counting vehicles
• Parking guidance system
• Automatic door
• Gate drive mechanisms,
• Operating barriers
• Activating card dispensers in parking lots
• Traffic Light System

Technical parameters of Loop Detector

Main Features:

1) Reset Switch : The reset switch enables the detector to be manually reset during commissioning and testing . This results in the detector re-tuning the sensing loop and becoming ready for vehicle detection ;

2) Selectable Pulse Time : This feature sets the length of time that the pulse relay will be energized for 1 Second or 0.5 Seconds ;

3) Pulse Relay Selection : The Pulse Relay may be configured to energize on detection of a vehicle or when the vehicle leaves the loop ;

4) Sensitivity Boost : This feature sets the undetect level to maximum sensitivity and is used to prevent loss of detection of high-bed vehicles ;

5) Switch Selectable Sensibility : 4 sensitivity setting are available on the switches to allow flexibility in configuration ;

6) Switch Selectable Frequency : 4 frequency settings are available to prevent cross-talk between adjacent loops ;

7) Filter Option : This option is used to provide a delay between detection of the vehicle and switchiing of the output relay . This relay is normally used to prevent false detection of small or fast moving objects ;

8) Permanent Presence Option : This feature ensure detection of the vehicle will be maintained when the vehicle is parked over the loop for extended periods .

Detail image

Wiring diagram

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.

Automatic Sensitivity Boost

Automatic sensitivity boost is selected by DIP5 switch on the front of the enclosure and is set as follows: OFF - Disabled, ON – Enabled. Automatic sensitivity boost causes the sensitivity to be boosted to a maximum on detection on the vehicle, and maintained at this level during the presence of the vehicle over the loop. When the vehicle departs the loop and detection is lost the sensitivity reverts to the pre-selected level.

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