Single Dual Channel Loop Sensor AC DC Power For Industrial Door And Access Control

JUTAI single and dual channel loop sensors are industrial-grade detection solutions optimized for industrial door automation and access control systems, supporting both AC (100-240V) and DC (12-24V) power inputs. Built with rugged reliability and flexible configuration, they deliver precise vehicle presence and pulse detection to streamline workflow efficiency and enhance security.

Our product range caters to diverse industrial and access control needs:

• Single Channel (LD100 AC / LD102 DC): Ideal for basic industrial door activation and single-point access control, focusing on reliable presence/pulse detection.
• Dual Channel (LD200 AC / LD202 DC): Equipped with directional sensing and dual-zone monitoring, perfect for entry/exit access management and coordinated industrial door operations.

All sensors seamlessly detect cars, trucks, forklifts, and motorcycles, maintaining stable performance in harsh industrial environments and outdoor access points.

• Dual Power Flexibility: Supports AC 100-240V (permanent industrial installations) and DC 12-24V (mobile/backup power setups), adapting to diverse power supply conditions.
• Adjustable Sensitivity: Single Channel models offer 16-level sensitivity tuning; Dual Channel variants provide 8-level independent adjustment per channel, minimizing false triggers from metal debris or adjacent equipment.
• Configurable Operating Modes: Presence mode (holds industrial doors open during vehicle passage), pulse mode (triggers one-time door activation), and auto-reset (prevents misoperation); Dual Channel adds 3 directional detection modes for access entry/exit logic.
• Industrial-Grade Durability: Weatherproof, dustproof housing, -40°C~+70°C operating temperature range, and 95% non-condensing humidity tolerance - resistant to industrial vibration, dust, and extreme weather.
• Real-Time Status Monitoring: LED indicators for power, detection status, and loop faults (short/open circuit), enabling quick on-site troubleshooting to reduce industrial downtime.
• Seamless Access Control Integration: Dual relay outputs (per channel for Dual Channel models) connect with industrial door controllers, access control panels, and security systems - no complex programming required.
• Anti-Interference Design: 4-step selectable frequency (20-80 kHz for Single Channel; 20-100 kHz for Dual Channel) avoids cross-talk with industrial machinery or adjacent detection loops.

• Single Channel Use Cases: Industrial roller door/high-speed door activation, warehouse access gate automation, forklift entry detection, loading dock door control, simple access point presence sensing.
• Dual Channel Use Cases: Industrial entry/exit access management, coordinated dual-door operation, access control with directional logic (entry-only/exit-only), toll gate access for industrial vehicles, multi-lane access control in factories/logistics parks.

• 15+ years of expertise in industrial-grade vehicle detection technology, tailored to industrial door and access control workflows.
• Dual power options (AC/DC) for flexible deployment in factories, warehouses, and outdoor access points.
• Rigorous quality testing to ensure resistance to industrial vibration, dust, and extreme temperatures.
• OEM/ODM customization support + standard order flexibility, adapting to specific project requirements.
• 2-year warranty + 24/7 technical support for seamless integration and long-term reliability.

• Choose Single Channel sensors for basic industrial door activation and single-point access control.
• Choose Dual Channel sensors for directional access management, dual-zone detection, or coordinated industrial door systems.

• Power LED (RED): Illuminates to indicate "Power ON."
• CH1 Detection LED:
  • Steady On: Indicates vehicle detection.
  • Slow Blinking: Indicates a loop short circuit or insufficient twists after the loop.
  • Fast Blinking: Indicates a loop open circuit or excessive twists after the loop.
• CH2 Detection LED:
  • Steady On: Indicates vehicle detection.
  • Slow Blinking: Indicates a loop short circuit or insufficient twists after the loop.
  • Fast Blinking: Indicates a loop open circuit or excessive twists after the loop.

Sensitivity and frequency adjustment is facilitated through a 7-way dip switch 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, ranging from 0.8 (least sensitive) to 0.015 (most sensitive).
• Dip switches 3, 4, and 5 control CH2 sensitivity, ranging from 0.8 (least sensitive) to 0.015 (most sensitive).

(1) DIP 1 & DIP 2: Special Sensitivity Increase For Both Trailer (Both Channels).

(2) D3, D4, D5 and Switch 2=S2 D1, D2: Setting Special Functions (Mode1, 2, 3 Direction Detection. Mode 4, 5, 6 Normal mode, two loop detection are separated).

(3) D6 & D7 & D8 and Switch 2=S2 D3 & D4 & D5: Setting CH1 and CH2 Sensitivity Selection (Eight Levels Choices).

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

• Coil Cutting Size and Embedding Guidelines are as shown in the diagram on the right.
• It is recommended to use ferromagnetic wires for the induction coil, with a total length of up to 500 meters.
• The cutting size of the coil should be a rectangle with a length of 1.0 to 2.0 meters and a width of 0.8 to 1.2 meters, avoiding right angles at corners as much as possible.

The JUTAI LD200/202 double-channel vehicle loop detector series, equipped with direction recognition function, is ideal for numerous single-channel entry and exit scenarios. When integrated with the JUTAI One door controller (Model: AC-11), JUTAI gate barrier (Model: BR-110), and JUTAI long-range RFID reader (Model: PUHF-9), along with high-temperature resistance loop coils (Model: JTHT-11), it forms a seamless solution for single-channel entry/exit access control systems.

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.

In this setup, one loop coil is used to trigger the reader and read the card, while the other loop coil is dedicated to the barrier's anti-smashing function. By utilizing the LD-200/202 as two independent loop detectors, there is a potential cost-saving benefit from an economic standpoint. This setup reduces some of the hardware costs associated with using separate detectors for each function.

This functionality is achieved by enabling the Independent Working Mode feature of the LD-200/202, allowing it to operate effectively in this dual capacity.