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BurookHi Norman... I just remembered i didn't let u know.... everything worked out we made both the wired and the remot control opening work... they loved the item (assuming it will hold its own for the next 10 years or so) -
KiranYes I don’t doubt you. Jutai is one of the most confident companies I came across in China
LD-200 Double Channel Loop Sensor For Parking Barrier Access Vehicle Detector
Product Details
| Power | 110-240VAC (48 To 63Hz) | Sensitivity | 20-2000μH |
|---|---|---|---|
| Sensitivity Setting | 16-Way Selectable/ Highest 0.010%Dl/L/Lowest 2.56% | Operation Temp | -40 ~ +70℃ |
| Response Times | Turn-on 10-90ms/Turn-off 10-90ms | Specification | 13.6*8.6*5.2mm |
| Highlight | Parking Barrier Access Loop Sensor,LD-200 Double Channel Loop Sensor,Vehicle Detector Loop Sensor |
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Product Description
LD-200 Double Channel Loop Sensor For Parking Barrier Access Vehicle Detector
Product Overview
The JUTAI Dual Channels Traffic Detector (LD-200/202) is engineered for precise vehicle detection and reliable traffic monitoring in parking and access control systems.
Key Features
- Dual independent detection channels (CH1 and CH2)
- Comprehensive diagnostic indicators for power and loop status
- Adjustable sensitivity and frequency via dip switches
- Multiple operational modes including direction detection
- Reset functionality for configuration changes
- Compact, well-engineered housing design
- Selectable presence time up to 30 minutes
- Loop frequency interference indication
- Direction detection capability
- Automatic Sensitivity Boost (ABS)
Technical Specifications
| Specification | Details |
|---|---|
| Loop Inductance | 20-2000μH |
| Sensitivity | 8-way selectable Highest: 0.015% DL/L Lowest: 0.8% DL/L |
| Frequency | Four-step switch selectable: 20-80KHz |
| Power Requirements | 110-240VAC (48 to 62Hz) 12-24VADC (48 to 62Hz) |
| Operation Temperature | -40℃ to +70℃ (-111℉ to +158℉) |
| Response Times | 10-90MS |
| Size | 75mm x 43mm x 110mm |
| Humidity | Up to 95% relative humidity without condensation |
Modes of Operation
- Presence Mode
- Pulse Mode
- AB Logic Presence Mode (Barrier Operation)
- AB Logic Pulse Mode (Counting Logic)
Applications
- Automatic Gate Systems
- Traffic Light Control
- Gate Drive Mechanisms
- Operating Barriers
- Parking Guidance Systems
- Activating Card Dispensers in Parking Lots
- Parking Barrier Control
- Vehicle Access Control
- Traffic Control & Toll Systems
- Vehicle Counting Systems
- Motorised Gates and Doors
- Security Bollards/Rolling Shutters/Garage Doors
- Camera Trigger Systems
Installation & Configuration
Indicator Functions
- Power LED (RED): Indicates "Power ON" status
- CH1 Detecting LED:
- Continuously On: Vehicle detection active
- Blinking slowly: Loop short circuit or insufficient twists
- Blinking fast: Loop open circuit or excessive twists
- CH2 Detecting LED:
- Continuously On: Vehicle detection active
- 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 with 8 different sensitivity levels available.
Reset Requirement: The LD-200 must be reset every time a setting change is made to the Dip switches.
Installation Guidelines
- Coil cutting size: Rectangle 1.0-2.0m length × 0.8-1.2m width
- Avoid right angles at corners during installation
- Use ferromagnetic wires with total length up to 500 meters
- Keep product plug and socket in vertical direction during installation
Working Principle
| Entry Process | Exit Process |
|---|---|
|
|
Direction Recognition
The Direction Recognition Function prevents duplicate triggering when vehicles pass additional UHF readers, ensuring accurate entry/exit record keeping.
System Integration
Compatible with JUTAI door controller (AC-11), gate barrier (BR-110), long-range RFID reader (PUHF-9), and high-temperature resistance loop coils (JTHT-11) for comprehensive access control solutions.
Independent Operation Mode
LD-200/202 can function as two independent single-channel loop detectors, ideal for standard one-in/one-out parking lots while reducing hardware costs.
Troubleshooting Guide
| Symptoms | Solution |
|---|---|
| Detector not working | Press reset button |
| Red LED indicator not fully lit | Check power supply connection |
| Green LED blinking slowly | Possible loop short circuit or insufficient turns |
| Green LED blinking faster | Possible loop open circuit or excessive turns |
| Insufficient number of turns | Lower frequency (add more turns if frequency still too high) |
| Excessive number of turns | Higher frequency (remove some turns if frequency still too low) |
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