LD-200 Dual Channel Loop Detector 20-2000uH 110-240V For Parking Counting System
LD-200 Dual channel Loop Detector 20~2000μH 110-240V for Parking Counting System
Product Name
Dual Channel Loop Detector for Parking Boom Barrier Gate
Key Advantages
- Wide Sensing Range and High Sensitivity: Broad sensing range from 15 to 2000μH with high sensitivity for accurate vehicle detection
- Automatic Reset Function: Automatically resets in case of malfunction without manual intervention
- Direction Recognition: Capable of recognizing specific directions to trigger relay output
- 40000V Lightning Protection: Robust protection against lightning strikes for long-term durability
- Wide Operating Environment Range: Operates from -40°C to +70°C for stable performance in harsh conditions
Core Functionality
- Vehicle Detection: Uses inductive sensing technology to detect vehicles without physical contact
- Direction Recognition: Identifies specific directions of vehicle movement for precise control
- Automatic Reset: Self-resetting capability enhances system reliability
- Relay Output: Provides output signals for gate opening, traffic control, and vehicle counting
Applications
- Traffic Management Systems: Vehicle detection at intersections, toll booths, and parking areas
- Gate Automation: Automatic opening and closing of gates in various settings
- Parking Facilities: Vehicle entry/exit management and counting
- Access Control: Vehicle authorization at secured locations
- Traffic Light Control: Optimizing traffic flow based on vehicle presence
- Vehicle Counting: Traffic studies and parking occupancy monitoring
Connection Diagram
Indicator Lights and Switch Settings
Power LED (RED): Indicates "Power ON"
CH1 Detecting LED:
- Continuously On: Vehicle detection
- Blinking slowly: Loop short circuit or insufficient twists
- Blinking fast: Loop open circuit or excessive twists
CH2 Detecting LED:
- Continuously On: Vehicle detection
- Blinking slowly: Loop short circuit or insufficient twists
- Blinking fast: Loop open circuit or excessive twists
Sensitivity Selection
Sensitivity and frequency adjustment is achieved through 7-way and 10-way dip switch settings. Users can select from 8 different sensitivity settings:
- Dip switches 6, 7, and 8 control CH1 sensitivity (0.8 least sensitive to 0.015 most sensitive)
- Dip switches 3, 4, and 5 control CH2 sensitivity (0.8 least sensitive to 0.015 most sensitive)
Switch 1 (S1) Configuration
DIP 1 & DIP 2: Special Sensitivity Increase For Both Trailer (Both Channels)
D3, D4, D5 and Switch 2 (S2) D1, D2: Setting Special Functions (Mode1, 2, 3 Direction Detection. Mode 4, 5, 6 Normal mode)
D6, D7, D8 and Switch 2 (S2) D3, D4, D5: CH1 and CH2 Sensitivity Selection (Eight Levels)
D9, D10 and Switch 2 (S2) D6, D7: Frequency Setting (20 K to 100 KHz)
Reset Button: The LD-200 must be reset every time a setting change is made to the Dip switches.
Installation Precautions
- Coil Cutting Size and Embedding Guidelines as shown in diagrams
- Recommended use of ferromagnetic wires for induction coil, up to 500 meters total length
- Coil cutting size: rectangle with length 1.0 to 2.0 meters and width 0.8 to 1.2 meters
- Avoid right angles at corners as much as possible
Recommended Installation Overview
When installing, keep the product plug and socket in the vertical direction
System Integration Application
JUTAI LD200/202 double channels vehicle loop detector series with direction recognition function, suitable for single-channel entry and exit cases.
JUTAI LD200/202 double channels loop detector connects to JUTAI One door controller (AC-11), JUTAI gate barrier (BR-110), and JUTAI long range RFID reader (PUHF-9), combined with high temperature resistance loop coils (JTHT-11), creating a complete single-channel entry/exit access control system.
Working Principle
Entry Process:
- Car enters and presses both loop coils simultaneously
- LD-200/202 triggers UHF reader at entrance
- UHF reader reads card ID and sends to controller via Wiegand output
- Controller verifies ID validity and opens gate barrier
- Barrier arm lowers automatically after car passes
- LD-100/102 provides safety and anti-smashing functionality
Exit Process:
- Car exits and passes inside UHF reader
- LD-200/LD-202 triggers UHF reader to read card
- Controller verifies ID and opens gate barrier
- Barrier arm lowers automatically after car passes
- LD-100/102 provides safety and anti-smashing functionality
Direction Recognition:
The Direction Recognition Function ensures the double channels loop detector does not trigger the signal again when the car passes another UHF reader, recording only entry or exit records in the system.
Independent Working Mode
The JUTAI LD-200/202 Double Channel Loop Detector can also function as two independent single-channel loop detectors, suitable for standard one-in and one-out parking lots.
In this configuration, one loop coil triggers the reader while the other provides barrier anti-smashing function, offering potential cost-saving benefits by reducing hardware requirements.
