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China factory - Shenzhen Jutai Comm Co., Ltd.

Shenzhen Jutai Comm Co., Ltd.

  • China,Shenzhen ,Guangdong
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  3. LD-200 Parking Barrier Dual Loop Detector with 8 Level Sensitivity and Vehicle
China LD-200 Parking Barrier Dual Loop Detector with 8 Level Sensitivity and Vehicle
China LD-200 Parking Barrier Dual Loop Detector with 8 Level Sensitivity and Vehicle

  1. China LD-200 Parking Barrier Dual Loop Detector with 8 Level Sensitivity and Vehicle

LD-200 Parking Barrier Dual Loop Detector with 8 Level Sensitivity and Vehicle

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Loop Inputs CH1 Loop + CH2 Loop
Delivery Time 5 - 8 working days
Auto Reset Time 10 Minutes in Normal Mode
Sensitivity Range 0.015% to 0.8%
LD-200 Power Supply 100-240VAC
Frequency Range 20-100kHz
Payment Terms T/T,L/C,D/A,D/P,Western Union,Paypal,Alipay
Detection Channels 2 Channels
Independent Detection CH1 and CH2 Independent Detection Supported
Direction Detection Supported
Supply Ability 1000 pieces per month
LD-202 Power Supply 12-24VAC/DC
Sensitivity Levels 8 Levels per Channel
Model LD-200 / LD-202
Packaging Details Cartoon
Working Modes 6 Selectable Modes
Model Number LD-200
Certification CE
Place of Origin China
Brand Name JUTAI

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  1. Product Details
  2. Company Details

Product Specification

Loop Inputs CH1 Loop + CH2 Loop Delivery Time 5 - 8 working days
Auto Reset Time 10 Minutes in Normal Mode Sensitivity Range 0.015% to 0.8%
LD-200 Power Supply 100-240VAC Frequency Range 20-100kHz
Payment Terms T/T,L/C,D/A,D/P,Western Union,Paypal,Alipay Detection Channels 2 Channels
Independent Detection CH1 and CH2 Independent Detection Supported Direction Detection Supported
Supply Ability 1000 pieces per month LD-202 Power Supply 12-24VAC/DC
Sensitivity Levels 8 Levels per Channel Model LD-200 / LD-202
Packaging Details Cartoon Working Modes 6 Selectable Modes
Model Number LD-200 Certification CE
Place of Origin China Brand Name JUTAI
High Light LD-200 parking barrier loop detector ，dual loop detector with sensitivity control ，vehicle direction detection loop detector
LD-200 Parking Barrier Dual Loop Detector
LD-200 Dual Loop Detector Product Overview
Product Overview
The LD-200 is engineered for parking barrier installations requiring two sensing loops, adjustable detection sensitivity, and vehicle direction information. This dual-channel detector accepts CH1 and CH2 loop inputs in a single unit, making it ideal for entrance lanes, exit lanes, and barrier systems utilizing both approach and safety loops.
Key commissioning advantages include eight-step sensitivity adjustment per channel, ranging from 0.015% (highest sensitivity) to 0.8% (lowest sensitivity). This allows installers to precisely match detector response to loop geometry and site conditions.
When loops are arranged consecutively, the LD-200 identifies vehicle direction based on CH1 and CH2 activation sequence. Multiple direction modes can be selected via DIP switches to generate required presence or pulse behavior for connected parking barrier controllers.
Key Product Advantages
Dual-loop input in single detector
Eight selectable sensitivity levels per channel
Direction detection using sequential loop activation
Six configurable working modes
20-100kHz selectable frequency range
Permanent presence or automatic reset mode
Separate CH1 and CH2 status indication
Loop open/short diagnostic indication
Technical Specifications
Parameter Specification
Model LD-200
Detector Type Two-channel inductive loop detector
Power Input 100-240VAC
Loop Inputs CH1 / CH2
Sensitivity Steps 8 per channel
Highest Sensitivity 0.015%
Lowest Sensitivity 0.8%
Selectable Frequency 20-100kHz
Frequency Bands 4
Operating Logic 6 modes
Direction Recognition Yes
Independent Presence Mode Yes
Pulse Functions Yes
Normal Auto Reset Approximately 10 minutes
Permanent Presence Mode Yes
Trailer Sensitivity Function Yes
Outputs CH1 relay COM/NO; CH2 relay COM/NO
Sensitivity Control
Each channel features independent sensitivity settings at eight levels: 0.015%, 0.02%, 0.04%, 0.08%, 0.12%, 0.2%, 0.5%, or 0.8%. A special sensitivity-increase function is included for trailer applications, preventing unwanted relay release when long vehicles or trailers pass over loops.
Direction Recognition for Barrier Lanes
Using paired loops, the detector identifies entry or exit movement. CH1-to-CH2 activation represents one direction, while CH2-to-CH1 represents the reverse. Multiple directional operating modes allow output behavior to match parking barrier or access-control system logic.
Parking Applications
  • Entry barrier approach and passage detection
  • Exit barrier vehicle release logic
  • Commercial car park lanes
  • Residential vehicle gates
  • Ticketing or access-controlled vehicle entrances
  • Directional vehicle-flow monitoring
Installation and Interference Control
For multiple loops installed in close proximity, detector frequency can be set to High, Medium-High, Medium-Low, or Low. Using different frequency selections on neighboring loop systems reduces cross-talk interference.
Loop Detector Connection Diagram
Indicators and Switches
  • Power LED (RED): Illuminates to indicate "Power ON"
  • CH1 Detection LED:
    • Steady On: Vehicle detection
    • Slow Blinking: Loop short circuit or insufficient twists
    • Fast Blinking: Loop open circuit or excessive twists
  • CH2 Detection LED:
    • Steady On: Vehicle detection
    • Slow Blinking: Loop short circuit or insufficient twists
    • Fast Blinking: Loop open circuit or excessive twists
Sensitivity Selection
Sensitivity and frequency adjustment is facilitated through 7-way and 10-way dip switch settings with eight different sensitivity levels available via configuration.
Sensitivity Selection Diagram
Switch Configuration
Switch 1 (S1) - Channel 1 Loop Function Selection:
  • DIP 1 & DIP 2: Special Sensitivity Increase For Both Trailer (Both Channels)
  • D3, D4, D5 and Switch 2 D1, D2: Special Functions (Mode1, 2, 3 Direction Detection. Mode 4, 5, 6 Normal mode)
  • D6 & D7 & D8 and Switch 2 D3 & D4 & D5: CH1 and CH2 Sensitivity Selection (Eight Levels)
  • D9 & D10 and Switch2 D6, D7: Frequency Selection (20 K to 100 KHz)
Switch Configuration Diagram 1 Switch Configuration Diagram 2 Switch Configuration Diagram 3 Switch Configuration Diagram 4
Reset Button Note: The LD-200 must be reset every time a setting change is made to the Dip switches.
Installation Guidelines
  • Coil cutting size should be rectangle: length 1.0 to 2.0 meters, width 0.8 to 1.2 meters
  • Avoid right angles at corners as much as possible
  • Use ferromagnetic wires for induction coil, total length up to 500 meters
  • Keep product plug and socket in vertical direction during installation
Coil Installation Overview Installation Orientation
System Integration
The JUTAI LD200/202 double-channel vehicle loop detector series with direction recognition function is ideal for single-channel entry and exit scenarios when integrated with:
  • JUTAI One door controller (Model: AC-11)
  • JUTAI gate barrier (Model: BR-110)
  • JUTAI long-range RFID reader (Model: PUHF-9)
  • High-temperature resistance loop coils (Model: JTHT-11)
System Integration Diagram
Working Principle
Entry Process:
  1. Car enters community/parking lot, pressing two loop coils simultaneously
  2. LD-200/202 triggers UHF reader at entrance
  3. UHF reader reads card ID and sends to controller via Wiegand output
  4. Controller verifies ID validity and outputs relay signal to open gate barrier
  5. Car enters, barrier arm lowers automatically
  6. LD-100/102 provides safety and anti-smashing functionality
Exit Process:
  1. Car exits community/parking lot, passing inside UHF reader
  2. LD-200/LD-202 triggers UHF reader to read card and send ID to controller
  3. Controller verifies ID validity and outputs relay signal to open gate barrier
  4. Car exits, barrier arm lowers automatically
  5. 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.
Working Principle Diagram
Independent Operation 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. This configuration provides cost-saving benefits by reducing hardware costs associated with using separate detectors for each function.
Independent Operation Diagram Additional Application Diagram 1 Additional Application Diagram 2

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    2012

  • Total Annual:

    120000-150000

  • Employee Number:

    50~70

  • Ecer Certification：

    Verified Supplier

Shenzhen Jutai COMM Co., Ltd. is a high-tech privately-owned enterprise that integrates production, research and development, and sales. Our company is dedicated to the research and development as well as system integration of security products, achieving an intelligent one unified platform that int... Shenzhen Jutai COMM Co., Ltd. is a high-tech privately-owned enterprise that integrates production, research and development, and sales. Our company is dedicated to the research and development as well as system integration of security products, achieving an intelligent one unified platform that int...

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Get in touch with us

  • Reach Us
  • Shenzhen Jutai Comm Co., Ltd.
  • 5f, Xuxingda Industrial Park, Shiyan, Baoan, Shenzhen, Guangdong, China
  • https://www.accesssecuritysolution.com/

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