Active Member
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[China]
Address: Longgang Shenzhen City, China
Contact name:Sherry
Shenzhen Maixiang Technology Co.,Ltd |
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Professional Vehicle Double Loop Detector For Road Car Park Management
Quick Detail:
The PD-123 is a single channel inductive loop detector designed for parking and access control applications.
The detector is connected to an inductive loop mounted in the road surface. When vehicles pass over the loop the detector switches on an output.
The use of microprocessor and surface mount technology enables a large number of functions to be incorporated into a small package.
The PD-123 is compatible with most single channel detectors on the market and is easy to set-up and install.
Quick Detail:
vehicle loop detector
Single channel inductive loop detectorsl
Application
Loop detectors are used wherever vehicles have to be detected. Like monitoring and safe guarding access ways to counting vehicles. The output signal can be used for controlling door and gate drive mechanisms, operating barriers, controlling traffic light systems in car parks or activating card dispensers in car parks.
The PD-123 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.
Features:
Reset Switch. Pressing 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.
Switch selectable Sensitivity. The detect sensitivity is the minimum change in inductance required to produce a detect output. (%ΔL/L). Eight sensitivity settings are available on the switches to allow flexibility in configuration.
Switch selectable Frequency. The frequency of the loop is determined by the inductance of the loop and the frequency switch setting. If the frequency switch is on, the frequency is reduced. It may be necessary to change the frequency to prevent cross-talk between adjacent loops on different detectors.
Specification:
Supply voltage: 230V AC , 115V AC, 24V DC/AC, 12V DC/AC
( See the label on the detector)
Voltage tolerance AC: +10% / -15%
Voltage tolerance DC: ±15%
Power Consumption: 4.5VA
Output relays: 240V/5A
Operating temperature: -20°C to +65°C
Storage temperature: -40°C to +85°C
Frequency range: 20 kHz to 170 kHz
Reaction time: 100ms
Signal holding time: Unlimited
Sensitivity: Adjustable in 3 increments
Loop inductance: Total loop plus connection wiring: 50μH to 1000μH.
Ideal is 100μH to 300μH
Loop connection wiring: Maximum length 20 meters, twisted at least 20 times per meter
Size of Housing: 78x40x108 mm (L x W x H)
