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{"title":"Gate Loop Detector for Barrier Industrial Doors Loop Short Open Circuit","imgUrl":"https:\/\/img.chinax.com\/nimg\/c4\/13\/87e5cdc3cda4d5ea44a30a28136b-200x200-1\/gate_loop_detector_for_barrier_industrial_doors_loop_short_open_circuit_indicator_reliable_performance.jpg","attrs":{"Sensitivity":"20-2000\u03bcH","Fault Output":"Blinks slowly: may indicate a short circuit or insufficient number of turns Blinks faster: may indicate an open loop or excessive number of turns","Relay":"Presence relay \/ Fault relay","Sensory regulation":"6 way selectable\/Highest0.010%DL\/L\/ Lowest 2.56%DL\/L"}}
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{"title":"Dual Loop Vehicle Sensor for Parking Barrier Gate with High Sensitivity Truck","imgUrl":"https:\/\/img.chinax.com\/nimg\/cb\/3d\/c1b9503509cf8b0c874d25692fb9-200x200-1\/dual_loop_vehicle_sensor_for_parking_barrier_gate_with_high_sensitivity_truck_detection.jpg","attrs":{"Self-Turning Range":"20-2000uh","Sensitivity":"16-Way Selectable\/ Highest 0.010%Dl\/L\/Lowest 2.56%","Power Requirements":"12-24V","Specification":"13.6*8.6*5.2"}}
{"title":"Inductive 2ch Loop Vehicle Detector for Parking Lot Entry & Exit Control","imgUrl":"https:\/\/img.chinax.com\/nimg\/c5\/95\/3c3989e26e4886a0dd4ea4d0a59d-200x200-1\/inductive_2ch_loop_vehicle_detector_for_parking_lot_entry_26_exit_control.jpg","attrs":{"Self-Turning Range":"20-2000uh","Specification":"13.6*8.6*5.2","Sensitivity":"16-Way Selectable\/ Highest 0.010%Dl\/L\/Lowest 2.56%","Power Requirements":"12-24V"}}
{"title":"LD-200 Dual Channel Vehicle Loop Detector with 20-2000uh Range and 110-240VAC","imgUrl":"https:\/\/img.chinax.com\/nimg\/4e\/89\/27817705af0ec8587ec8bc903a5e-200x200-1\/ld_200_dual_channel_vehicle_loop_detector_with_20_2000uh_range_and_110_240vac_power_for_parking_access_control.jpg","attrs":{"Minimum Order Quantity":"1","Delivery Time":"5 - 8 working days","Response Times":"Turn-on 10-90ms\/Turn-off 10-90ms","Certification":"CE"}}
Industrial Dual Loop Detector For High Speed Door And Separation Control
Product Overview
The industrial dual loop detector (models LD200/LD202) is a professional-grade automation core tailored for high-speed doors and industrial separation control scenarios. It integrates dual independent detection channels, precise direction judgment, and anti-interference performance, specifically adapting to the high-frequency opening/closing, fast vehicle flow, and strict safety requirements of industrial environments.
This detector not only realizes automatic triggering of high-speed doors but also achieves accurate separation control of personnel and vehicles, bidirectional traffic management, and anti-collision protection—making it essential equipment for warehouses, logistics parks, factories, and loading docks.
Core Functions & Product Advantages
High-Speed Door Intelligent Trigger
Detects vehicles (cars, trucks, forklifts) in real-time, triggering high-speed doors to open quickly (response time 10-90 ms) and close automatically after passage, improving logistics throughput.
Dual-Channel Separation Control
Works as two independent detectors or a coordinated system, separating entry/exit lanes, personnel/vehicle channels, or inbound/outbound goods flow to avoid cross-interference.
Bidirectional Direction Judgment
3 configurable modes accurately identify vehicle travel direction, supporting one-way passage control and two-way flow counting for industrial traffic management.
Anti-Collision & Safety Protection
Continuously monitors vehicle presence during door operation; if a vehicle is detected in the passage, the door pauses closing to prevent collision and ensure personnel/equipment safety.
Industrial-Grade Stability
Withstands -40°C~+70°C extreme temperatures, 95% non-condensing humidity, and industrial vibration, with dustproof and waterproof housing adapting to harsh workshop environments.
Anti-Interference Design
8-level adjustable sensitivity (0.015%-0.8% DL/L) and 4-step frequency (20-100 kHz) per channel, avoiding cross-talk with adjacent metal structures or electronic equipment.
Large Vehicle Adaptation
DIP switch-enabled sensitivity boost prevents false door closure when trailers, heavy-duty trucks, or long cargo vehicles pass through.
Intuitive Fault Diagnostics
LED indicators display power, detection status, and loop faults (short/open circuit), enabling quick troubleshooting and reducing downtime.
Technical Specifications
Parameter
Specification
Product Name
Industrial Dual Loop Detector
Models
LD200 (100-240V AC) / LD202 (12-24V DC)
Channels
2 Independent (directional detection or separate use)
Power Supply
100-240V AC (LD200) / 12-24V DC (LD202)
Direction Detection
3 specialized modes (configurable via DIP switches)
Operating Modes
3 direction modes + 3 normal modes (presence/pulse output)
Warehouse High-Speed Doors: Automatic opening/closing when forklifts/trucks enter/exit, realizing fast cargo transfer and energy saving
Loading Dock Separation Control: Separating loading/unloading lanes, detecting vehicle presence to trigger dock leveler operation
Factory Workshop Channels: Separating personnel and vehicle passages, preventing high-speed doors from opening for pedestrians
Logistics Sorting Centers: Bidirectional traffic flow counting and lane separation for delivery trucks
Cold Storage & Clean Rooms: Fast door triggering to minimize cold air leakage or dust entry
Industrial Park Access Gates: Bidirectional vehicle detection for factory entry/exit separation
Heavy Industry Workshops: Adapting to high dust, vibration, and extreme temperature environments
Cargo Terminals: Detecting container trucks and forklifts, coordinating high-speed door operation
Connections & Indicators
LED Indicators
Power LED (RED)
Illuminates to indicate "Power ON"
CH1 Detection LED
Steady On: Vehicle detection | Slow Blinking: Loop short circuit | Fast Blinking: Loop open circuit
CH2 Detection LED
Steady On: Vehicle detection | Slow Blinking: Loop short circuit | Fast Blinking: Loop open circuit
Sensitivity & Frequency Configuration
Sensitivity and frequency adjustment is facilitated through 7-way and 10-way DIP switch settings. Users can choose from 8 different sensitivity settings by configuring the DIP switch positions according to the provided tables.
DIP switches 6, 7, and 8 govern CH1 sensitivity (0.8 to 0.015)
DIP switches 3, 4, and 5 control CH2 sensitivity (0.8 to 0.015)
Switch 1 (S1) Configuration
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 a rectangle: 1.0-2.0m length × 0.8-1.2m width
Avoid right angles at corners as much as possible
Use ferromagnetic wires for induction coil (up to 500 meters total length)
Keep product plug and socket in vertical direction during installation
System Integration & Applications
Working Principle
Entry Process
Car enters community/parking lot, pressing 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 outputs relay signal to open gate barrier
Car enters, barrier arm lowers automatically after passage
LD-100/102 provides safety and anti-smashing functionality
Exit Process
Car exits, passing by inside UHF reader
LD-200/202 triggers UHF reader to read card and send ID to controller
Controller verifies ID and opens gate barrier for exit
Barrier arm lowers automatically after car passage
LD-100/102 provides safety and anti-smashing functionality
Direction Recognition
The Direction Recognition Function ensures the double channel loop detector does not trigger the signal again when the car passes another UHF reader, thereby recording only the entry or exit records in the system.
Independent Operation Mode
The JUTAI LD-200/202 Double Channel Loop Detector can also function as two independent single-channel loop detectors. This configuration is suitable for standard one-in and one-out parking lots, where there is one barrier and one long-range reader at both the entrance and exit.
Cost-Saving Benefit: By utilizing the LD-200/202 as two independent loop detectors, there is potential cost-saving from reduced hardware costs associated with using separate detectors for each function.
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...