Loop Coil Detector Sensor, Vehicle Loop Detector, Parking Sensor

• Type: Vehicle Detector
• Usage: Metal, Car Barrier
• Installation Mode: Built in
• Certification: CE, ISO
• Application: Traffic
• Sensitivity: High/Middle/Low 3 Levels
• Model NO.: GVD1 series
• Detection Rang: 80-500μh
• Frenquency: 50-250kHz
• Output: 2 Relay Output
• Response Time: 50ms
• Work Temperature: -45-80ºC
• Humidity: 95%
• Transport Package: Carton
• Specification: 94.5mm X38mm X26mm
• Trademark: G-TEK
• Origin: Tianjin China
• HS Code: 9032900090
• Production Capacity: 3000 Pieces/ Month

Product Description

Product Description

loop detectors are our popular products for access control and are widely used at industry door for vehicle detection to realize door opening function, also at the barrier gate and toll gate . GVD1xx series is one economical type loop detector with single channel and 24V AC/DC and 24VAC  two models.
 

Operating Voltage: GVD101:AC 220V±10%         Sensitivity:3 degrees selections
                    GVD121:DC/AC 24V±10%      Response Time:50ms                       
Power consumption:< 3W                         Operating Temperature:-20ºC~70ºC
Coil Inductance Value:80~500uH                   Storage Temperature:-40ºC~85ºC
Operating Frequency:50KHz~250KHz                Relative Humidity  :Max 90%

 

 

   

Product Series	Product Model	Product type	Supply voltage	Sensitivity
GVD1XX Series	GVD121	Single channel	24V DC/AC±10%	3 adjustable levels
	GVD101	Single channel	220V AC±10%	3 adjustable levels

 

Channel	Single channel
Model	GVD121
Supply voltage	24V AC/DC±10%
Detection rang	80~500μH
Sensitivity	Low, Middle, High three levels for adjustment
Consumption	<3W
Response time	50ms
Frequency	50KHz~250KHz
Control Output	2 Relay output (5A/AC230V) Relay1: Pulse Relay2: Presence
Function	Sw1 "ON":    Relay1: No output   Relay2: Statues signal
	Sw1 "OFF"   Relay1: Pulse signal(Pulse width:200ms)                Relay2: Statues signal
Working statues	Power-On:   self-calibration
	Calibrating:   ''POWER'' indicator light on, "DETECT" indicator flickers several times   Sensitivity: ''H'' flickers 3 times, "M" flickers 2 times, "L" flickers1 tome
	After calibration: "DETECT" indicator power off, system at stand-by condition
Operation temperature	-20ºC~70ºC
Storage temperature	-40ºC~85ºC

 

Channel	Single channel
Model	GVD101
Supply voltage	220V AC±10%
Detection rang	80~500μH
Sensitivity	Low, Middle, High three levels for adjustment
Consumption	<3W
Response time	50ms
Frequency	50KHz~250KHz
Control Output	2 Relay output (5A/AC230V) Relay1: Pulse Relay2: Presence
Function	Sw1 "ON":    Relay1: No output   Relay2: Statues signal
	Sw1 "OFF"   Relay1: Pulse signal(Pulse width:200ms)                Relay2: Statues signal
Working statues	Power-On:   self-calibration
	Calibrating:   ''POWER'' indicator light on,"DETECT" indicator flickers several times   Sensitivity: ''H'' flickers 3 times,"M" flickers 2 times,"L" flickers1 tome
	After calibration: "DETECT" indicator power off, system at stand-by condition
Operation temperature	-20ºC~70ºC
Storage temperature	-40ºC~85ºC

 

Loop is normally rectangle, the two longer sides is perpendicular to the direction of vehicle (metal object) motion. The length of longer side depends on the width of road, usually 0.5m less than road width at both ends. Loop perimeter≥10m, 2 turns;6m≤Loop perimeter <10m,3-4turns;Loop perimeter <6m,more than 5 turns.



When two loop configurations are in close proximity, one loop magnetic field is disturbed by another. This phenomenon, known as crosstalk, will cause false detection and deadlock.
It could be eliminated by:
1:Changing loop operating frequency by making different turn number for same-sized loops, such as 4 turns for one, 6 turns for another;
2:Increasing space between two loops to Min.2m;
3:Shielding for feeder cable.The copper single-core wire is the preference for loop cable and feeder. Cable and feeder should be an unbroken wire, or be welded together well if terminals are necessary. wire should be heat-oxidation resistant with sectional area not less than 1mm².
4:Length of feeder should be 5 m at most , and feeder should be inter-twisted not less than 20 times per meter.
 

 

About G-TEK Sensor

Tianjin G-TEK sensor technology co..ltd is indicated in providing intelligent sensor products and customized solutions for logistics automation, factory automation and process automation. The predecessor of the company is Tianjin G-TEK automation technology Co.,ltd, a professional sensor manufacturer and sensor solution provider,  which was established in 2003 with business ranges from Proximity switch,photoelectric sensor,measurement and safety light curtain to Laser rangefinder sensor,laser radar., etc and serves for Intelligent buildings, intelligent transportation, logistics automation, factory automation and industry robot fields.
Tianjin G-TEK sensor technology co.,ltd was established in 2014 at Xiqing district , Tianjin City and it will fully inherit and expand the original G-TEK automation business with the construction and operation of the new R&D and manufacture base.

OUR PRODUCT RANGE

1. Photoelectric Sensor (PMF21/PMF50/PMF55/PMF80 /PM18/PS18/PT12 series)
2. Proximity Sensor (IM12/IM18/IM30/IF17 series)
3. Infrared light curtain (LSM/LSMC/LSE/LSEC series)
4. Safety light curtain (LSA series)
5. Infrared vehicle separator (LHA/LHAC/LHN/LHNC series)
6. Loop detector (GVD3/GVD1 series)
7. Laser radar (LSD/LND series)
8. 3D TOF product (GDC1100/GDC1101/GDC1102)
9. Other sensor product (Microwave radar, Revolving door Anti-pinching sensor)