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Dual Channel Vehicle Loop Detector Direction Detection For Traffic Counting LD200 LD202

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Dual Channel Vehicle Loop Detector Direction Detection For Traffic Counting LD200 LD202

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Brand Name :	JUTAI
Model Number :	LD-202
Certification :	CE
Price :	Negotiation
Payment Terms :	T/T,L/C,D/A,D/P,Western Union,Paypal,,Alipay
Supply Ability :	1000 pieces per month
Delivery Time :	5 - 8 working days

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Product Details
Company Profile

Dual Channel Vehicle Loop Detector Direction Detection For Traffic Counting LD200 LD202

Product Overview

JUTAI Dual Channel Vehicle Loop Detector

The JUTAI Dual Channel Loop Detector models LD200 and LD202 are professional grade detection devices designed for advanced vehicle monitoring applications. Utilizing two independent inductive loops, this detector not only identifies vehicle presence but also determines the direction of travel, making it ideal for traffic counting, parking management, and access control systems where monitoring bidirectional flow is essential.

With two completely separate channels, each with its own sensitivity adjustment and relay output, the device offers unparalleled flexibility. It supports multiple operating modes configurable via DIP switches, including directional detection, presence hold, and pulse output modes to suit a wide array of industrial and commercial applications.

Key Features

Dual independent detection channels for simultaneous monitoring
Advanced directional detection mode identifies vehicle travel direction
Configurable as two separate detectors or as a coordinated directional system
Independent 8 level sensitivity adjustment for each channel
Four selectable frequency settings to minimize cross talk
LED indicators for power and individual channel status including fault diagnostics
Supports 100 to 240V AC (LD200) or 12 to 24V DC (LD202) power input
Dedicated relay output per channel for presence or pulse signals
Manual reset button for confirming configuration changes
Robust housing suitable for indoor and outdoor installations

Applications

Car park entry and exit counting and occupancy management
Drive through lane vehicle sequencing and control
Toll station traffic flow monitoring and data collection
Industrial site vehicle ingress and egress logging
Warehouse and logistics center high speed door control
Shopping center parking facility entry exit separation
Airport perimeter road traffic monitoring
Bus lane enforcement and unauthorized vehicle detection
Freeway on ramp and off ramp traffic studies
Loading dock traffic management and scheduling
Drive in bank or restaurant queue management
Gate automation systems requiring direction sensing
Traffic signal coordination at intersections
Vehicle classification and counting for municipal planning
Parking guidance system data input
EV charging station entry exit management
Car wash dual lane vehicle detection
Security checkpoint vehicle processing
Agricultural and mining site vehicle flow analysis
Industrial plant internal traffic monitoring and safety

Technical Specifications

Parameter	Specification
Model	LD200 (AC) / LD202 (DC)
Channels	2 Independent
Power Supply	100-240V AC (LD200) / 12-24V DC (LD202)
Frequency Range	20-100 kHz (4-step selectable)
Sensitivity per Channel	8-level adjustable (0.015% to 0.8% DL/L)
Response Time	10-90 ms (on/off)
Operating Temperature	-40°C to +70°C
Relay Output	2 Relays (One per channel COM and NO)
Indicators	Power LED (Red) + CH1 & CH2 Detection LEDs (Green)
Reset Function	Manual reset button
Humidity Tolerance	Up to 95% (non-condensing)
Loop Inductance Range	20-2000 µH per channel
Direction Detection Modes	Multiple modes configurable via DIP switches

DIP Switch Configuration Overview

Switch 1 DIP 1-2: Special trailer sensitivity and auto reset modes

Switch 1 DIP 3-5 and Switch 2 DIP 1-2: Select operation mode (Direction Detection or Separate Channels)

Switch 1 DIP 6-8 and Switch 2 DIP 3-5: Set sensitivity for CH1 and CH2 independently

Switch 1 DIP 9-10 and Switch 2 DIP 6-7: Set operating frequency to avoid interference

Loop Installation Guide

Loop Perimeter Per Channel	Recommended Turns
3 to 4 m	6 turns
4 to 6 m	5 turns
6 to 10 m	4 turns
10 to 20 m	3 turns
Over 20 m	2 turns

Why Choose JUTAI Dual Channel Loop Detector

Over 15 years of specialized experience in vehicle detection
Advanced directional logic for complex traffic monitoring needs
Rigorous production testing ensuring high reliability and longevity
OEM and ODM services available for product customization
Competitive pricing with support for both small and large quantity orders
Comprehensive 2 year warranty and dedicated technical support

Connections and Indicators

Double Channel Car Parking Management Inductive Loop Detector Connections

Indicators and Switches

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 Selection

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).

Double Channel Car Parking Management Inductive Loop Detector Switches

Switch Configuration Details

Switch 1 (S1): Channel 1 Loop Function Selection (10 way dip switch)

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

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)

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

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.

Installation Precautions and Troubleshooting

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

Recommended Installation Overview

Basic typical coil turns installation overview

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

Product plug and socket installation direction

Application Scenarios

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.

Working Principle

Entry Process:

When a car enters the community or parking lot, the two loop coils are pressed simultaneously
The JUTAI Double Channel Loop Detector (LD-200/202) triggers the UHF reader located at the entrance
The UHF reader reads the card ID and sends it to the controller (AC-11) via Wiegand output
The controller verifies the ID's validity and outputs a relay signal to open the gate barrier
The car enters the community or parking lot, and as it passes the barrier gate, the barrier arm lowers automatically
The JUTAI Single Channel Loop Detector (LD-100/102) ensures safety and anti-smashing functionality during this process

Exit Process:

When a car exits the community or parking lot, it passes by an inside UHF reader
The LD-200/LD-202 triggers the UHF reader, which reads the card and sends the ID to the controller
The controller verifies the ID's validity and outputs a relay signal to open the gate barrier for the car to exit
As the car passes through the barrier gate, the barrier arm lowers automatically
The LD-100/102 provides safety and anti-smashing functionality during this process

Direction Recognition:

The Direction Recognition Function of LD-200/LD-202 ensures that the double channels 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 Working 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.

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.

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