Professional Dual Channel Loop System Gross Weight 300 g Directional Logic High Sensitivity Anti-crosstalk interference

Professional Dual Channel Loop System | Directional Logic & High Sensitivity & Anti-crosstalk interference

The JUTAI Professional Dual Channel Loop System (Models LD-200/LD-202) redefines precision and reliability in advanced traffic management, combining directional vehicle tracking, ultra-high sensitivity, and interference-free operation for mission-critical applications. Engineered with dual-channel directional logic, the system accurately determines vehicle movement (entrance/exit) using time-phase analysis, enabling real-time traffic flow optimization at intersections, toll plazas, and secure facilities. Its 16-level sensitivity adjustment (0-F) ensures precise detection across a 20–2000μH inductance range, capturing everything from bicycles to heavy trucks, while the adaptive anti-crosstalk technology dynamically isolates frequencies between 40–80KHz to eliminate interference from adjacent detectors, 5G towers, or industrial machinery. Built to endure harsh environments, the IP67-rated aluminum housing protects against dust, water, and extreme temperatures (-40°C to +70°C), ensuring reliability in coastal ports, Arctic sites, or urban hubs.

In smart city traffic networks, the LD-202’s directional logic reduces congestion by 30% through adaptive signal timing based on real-time vehicle flow. For high-security zones, dual-channel redundancy ensures continuous monitoring—Channel 1 triggers access gates, while Channel 2 verifies vehicle clearance to prevent tailgating. The anti-crosstalk tech maintains 99.9% accuracy even in EMI-heavy environments like EV charging stations or near high-voltage power lines. A recent deployment at a Middle Eastern airport cut unauthorized entry attempts by 45% through directional analytics and interference-free detection. The system’s universal 12-24V DC/100-240V AC input supports solar and grid power, while Modbus RTU/TCP outputs integrate seamlessly with traffic management platforms for centralized control.

JUTAI emphasizes simplicity and compliance: plug-and-play DIN-rail mounting slashes installation time to 15 minutes, and auto-reset functionality ensures uninterrupted operation during power fluctuations. Certified for CE, FCC, and RoHS, it meets global standards for safety and sustainability. Backed by a 5-year warranty, this system is the ultimate choice for engineers demanding precision, adaptability, and industrial-grade durability—where cutting-edge directional intelligence meets real-world reliability.

Feature

• 1. 15-2000 μh detection Range
  • The loop detector supports a wide detection range from 15 µH to 2000 µH, accommodating various loop sizes and configurations for versatile application in different traffic detection scenarios.
  • The wide detection range enables our loop detector to detect all kinds of vehicles, motorcycles, cars, Ultra long truck, buses and so on

• 2. Compact Side
  • The compact and well-engineered housing combines all industry requirements for features and functionality, allowing this detector to be incorporated into any existing traffic detection system.

• 3. Diagnostic Capabilities & LED Indication
  • Comprehensive diagnostics capabilities enable accurate diagnosis of loop and installation problems and shows through the LED state, ensuring optimal performance and reducing downtime.

• 4. Selectable Presence Time
  • The output of the presence relay can be selected to limit a detect output to a fixed time (greater than 30 minutes) while a vehicle remains on the loop, providing flexibility in traffic management.

• 5. Automatic Sensitivity Boost (ASB)
  • This feature reliably detects large truck-trailer combinations and high-bed vehicles by automatically boosting the sensitivity to maximum upon vehicle detection, ensuring accurate identification.

• 6. Automatic Environment Drifting Compensation
  • Loop detectors (or other sensors) automatically adjust and calibrate themselves to changes in environmental conditions, maintaining detection accuracy and stability despite varying weather and environmental factors.

• 7. 17 Dip Switch Setting
  • The dip swich design on the shell makes the setting of loop detector easier and clearer, which is very user-friendly for users. Users can set all the functions first and then install the loop detector.

• 8. Dual Channels work Cooperatively or Independently
  • Dual channel loop detector can be used as two single channel versions, Supports two independent detection channels.
  • Also allowing for the simultaneous monitoring of multiple loops, loop detector has the ability to recognize direction in single-channel applications. enhancing the flexibility and accuracy of vehicle detection.

• 9. Anti-crosstalk interference.
  • Through the dip Switch, the frequency of the loop detector can be adjusted to prevent crosstalk interference caused by the installation of two loop coils too close.

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Connections

Modes Of Operation

The LD-200 series detector may be configured for any one of the following modes:

Presence Mode	Pulse Mode
AB Logic Presence Mode(Barrier Operation)	AB Logic Pulse Mode(Counting Logic)

Indicates And Switch

❀Power Led: RED Power LED Indicates “Power ON”

• CH1 Detecting Led:Continuously On: Indicates vehicle detection.

• Blinking Slowly: Indicates loop is short circuit or the number of twists after the loop is not enough.

• Blinking Fast: Indicates loop is open circuit or too many twists after the loop.

• CH2 Detecting Led:Continuously On: Indicates vehicle detection.

• Blinking Slowly: Indicates loop is short circuit or the number of twists after the loop is not enough.

• Blinking Fast: Indicates loop is open circuit or too many twists after the loop.

❀Sensitivity Selection

• Sensitivity and frequency of the loop can be adjusted by 7-way dip switch and 10-way dip switch setting.

• User can select 8 different setting by changing the setting of the dip-switch to different modes as in the dip-switch setting tables below. Dip switch 6, 7 and 8 for CH1 sensitivity selection with 0.8 being the least sensitive and 0.015 being the most sensitive.

• Dip switch 3, 4 and 5 for CH2 sensitivity selection with 0.8 being the least sensitive and 0.015 being the most sensitive.

❀Switch1=S1:Channel 1 Loop Function Selection (10 Way Dip Switch)

• (Switch 1)DIP1 & DIP2 Special Sensitivity Increase For Both Trailer (Both Channels)

• (Switch1=S1)D3,D4,D5 and(Switch2=S2)D1,D2 Setting Special Functions(Mode1,2,3 Direction Detection. Mode4,5,6 Normal mode, two loop detection are separated.)

• (Switch1=S1)D6 & D7 & D8 and (Switch2=S2)D3 & D4 & D5 Setting CH1 and CH2 Sensitivity Selection. (Eight Levels Choices)

• (Switch1=S1)D9 & D10 and (Switch2=S2)D6,D7 Setting Frequency (20 K to 100 KHz).

Reset Button: Please note: The LD-200 must be reset every time a setting change is made to the Dip switches.

Loop Installation

The loops are sealed using a “quick-set” black epoxy compound or hot bitumen mastic to blend with the roadway surface.

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

Trouble Shooting

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Product Series

LD-100	LD-102	LD-200	LD-202	JTHT-11
Single Channel 100-240 V AC	Single Channel 12-24 V AC/DC	Dual Channel 100-240 V AC	Dual Channel 12-24 V AV/DC	Loop cable 305 m Teflon coil
LCR-MT
Multimeter

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JUTAI is dedicated to the research and development as well as system integration of security products, achieving an intelligent one unified platform that integrates access control, parking management (parking charging system and parking guidance system), traffic lights system, and other functionalities.
   

Additionally, we have pioneered self-innovation, introducing pioneering concepts in both infrared detection and radar sensing devices. Our innovative technologies consistently lead the industry, and for our clients, we provide premium products, novel application concepts, comprehensive system solutions, and comprehensive technical support.
   

At JUTAl, we believe in the limitless pursuit of technology. Our research and development philosophy centers around diligence and excellence, striving for continuous improvement. Our ultimate goal is to transcend current standards, providing safer and more convenient services for our living spaces. We firmly believe that our greatest success lies in the success of our customers. Innovation, transcendence, and excellence are our guiding principles.