LD-202 Dual Channel Gate Barrier Loop Detector 12-24VADC 15-2000uH

LD-202 Dual Channel Loop Detector 12-24VADC 15~2000μH for Barrier Gate Opening and Safety

Product Name: JUTAI LD-202 Dual Channel Loop Detector 12-24VADC 15~2000μH for Barrier Gate Opening and Safety

Overview: Designed to elevate barrier gate opening and safety measures, the JUTAI LD-202 Advanced Dual Channel Loop Detector offers unparalleled precision in vehicle detection. With its extensive sensing range, high sensitivity, and intelligent features, it ensures seamless operation and reliability in various applications.

Distinctive Features:

1. Enhanced Sensing Range and Sensitivity: The LD-202 sensor boasts an extended sensing range from 15 to 2000μH and remarkable sensitivity, guaranteeing accurate detection of diverse vehicles for consistent performance.

2. Smart Automatic Reset Function: Equipped with an automatic reset function, the LD-202 sensor swiftly resets in case of malfunction, enhancing system stability and reliability without requiring manual intervention.

3. Advanced Direction Recognition: Featuring cutting-edge direction recognition capabilities, the LD-202 sensor precisely identifies vehicle movement directions, enabling precise control over gate operations for optimized efficiency.

4. Robust Lightning Protection: With robust lightning protection of up to 40000V, the LD-202 sensor ensures exceptional durability and reliability, safeguarding against lightning strikes for prolonged longevity.

5. Wide Operating Environment Range: Engineered to thrive in diverse environments, the LD-202 sensor operates flawlessly within a wide temperature range from -40°C to +70°C, ensuring consistent performance even in challenging weather conditions.

Operational Functionality:

1. Efficient Vehicle Detection: Employing advanced inductive sensing technology, the LD-202 sensor accurately detects vehicles without physical contact, relying on changes in inductance within the loops caused by the vehicle's metal mass.

2. Intelligent Direction Recognition: The LD-202 sensor's intelligent direction recognition capabilities enable precise identification of vehicle movement directions, facilitating optimized gate operations.

3. Seamless Automatic Reset: Featuring a seamless automatic reset function, the LD-202 sensor ensures continuous operation and system reliability by automatically resetting in the event of a malfunction.

4. Reliable Relay Output: Providing reliable relay output signals upon vehicle detection, the LD-202 sensor enables various actions such as gate opening, traffic light control, and vehicle counting for enhanced operational efficiency.

Versatile Applications:

1. Traffic Management Systems: Deployed in traffic control systems to detect vehicles at intersections, toll booths, and parking entrances/exits, optimizing traffic flow management.

2. Gate Automation: Integrated into gate control systems for automatic opening and closing of gates in residential, commercial, and industrial environments, enhancing security and convenience.

3. Parking Facilities Management: Utilized in parking lots and garages to manage vehicle entry and exit, monitor parking occupancy, and enforce parking regulations for efficient space utilization.

4. Access Control Systems: Employed in access control systems to authorize vehicle entry at secured locations such as gated communities, industrial facilities, and military installations, ensuring controlled access and security.

5. Traffic Light Optimization: Used to trigger traffic light changes based on vehicle presence and direction, minimizing congestion and optimizing traffic flow at intersections and roadways.

6. Vehicle Counting Applications: Applied in vehicle counting applications for traffic studies, parking occupancy monitoring, and retail traffic analysis, providing valuable insights for traffic management and business operations.

Indicators and Switches Overview:

Power LED (RED): The red power LED signifies that the power is ON, providing a visual indication of the operational status.

CH1 Detecting LED:

• Continuously On: Indicates vehicle detection in Channel 1.
• Blinking Slowly: Indicates a potential issue such as a short circuit in the loop or insufficient twists after loop installation.
• Blinking Fast: Indicates an open circuit in the loop or excessive twists after loop installation.

CH2 Detecting LED:

• Continuously On: Signifies vehicle detection in Channel 2.
• Blinking Slowly: Indicates a potential issue such as a short circuit in the loop or insufficient twists after loop installation.
• Blinking Fast: Points to an open circuit in the loop or excessive twists after loop installation.

Sensitivity Selection: The sensitivity and frequency of the loop can be finely tuned using a combination of 7-way and 10-way dip switch settings. Users can choose from 8 different sensitivity settings by adjusting the dip switch configurations, as outlined in the dip switch setting tables below. Dip switches 6, 7, and 8 control the sensitivity selection for Channel 1, with options ranging from 0.8 (least sensitive) to 0.015 (most sensitive). Dip switches 3, 4, and 5 regulate the sensitivity selection for Channel 2, with options also ranging from 0.8 (least sensitive) to 0.015 (most sensitive).

When installation, please keep the product plug and socket in the vertical direction
 

The operational principle is as follows:

1. Entry Process:

   • Upon a vehicle's entry into the community or parking lot, simultaneous activation of the two loop coils occurs.
   • The JUTAI Double Channel Loop Detector (LD-202) triggers the UHF reader positioned at the entrance.
   • Upon reading the card ID, the UHF reader transmits the ID to the controller (AC-11) via Wiegand output.
   • The controller verifies the ID's validity and outputs a relay signal to open the gate barrier.
   • Once the vehicle enters the community or parking lot, the barrier arm automatically lowers.
   • The safety and anti-smashing function is facilitated by the JUTAI Single Channel Loop Detector (LD-100/102).

2. Exit Process:

   • As the vehicle exits the community or parking lot and passes the internal UHF reader, the LD-202 triggers the UHF reader.
   • The reader reads the card and sends the ID to the controller.
   • Upon validation of the ID, the controller emits a relay signal to open the gate barrier.
   • After the vehicle exits the community or parking lot, the barrier arm lowers automatically.
   • The safety and anti-smashing function is facilitated by the JUTAI Single Channel Loop Detector (LD-100/102).

In both scenarios, the LD-202's Direction Recognition Function ensures accurate and efficient operation.