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Reset Switch Adjustable 100ms 200m Inductive Loop Detector

Place of Origin Shenzhen, China.
Certification CE/ ISO
Model Number PD-132
Minimum Order Quantity Sample order accepted
Price negotiable
Packaging Details Carton/Plywood box/Pallet
Delivery Time 2-5 working days after payment received
Payment Terms T/T, L/C, D/A, D/P, Western Union, MoneyGram
Supply Ability 3,0000pcs per month
Product Details
Frequency Range 20 KHz To 170 KHz Reaction Time 100ms
Output Relays 240V/5A Warranty 1 Year
Voltage Available 220V, 110V, 24V, 12V Loop Connection Wiring Maximum Length 200 Meters Twisted At Least 20 Times Per Meter
Operating Temperature -20°C To +65°C Sensitivity 4 Levels
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Reset Switch Inductive Loop Detector


100ms Inductive Loop Detector


200m Adjustable Loop Detector

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Product Description

4 sensitivity adjustable industrial grade design inductive loop detector


Install Detector

The detector must be installed in a convenient weatherproof location as close to the loop as possible. Installation location must choose to stay away from the heat source, it around other devices must maintain a distance of at least 10mm (mustn’t fix cling to the cabinet). A correct loop configuration and detector installation will ensure a successful inductive loop detection system. Loop of several important parameters include: loop figure, size, and turns, install methods (details as “Loop installation guide”).


Technical Data

Supply voltage: 230V AC , 115V AC, 24V DC/AC, 12V DC/AC ( See the label on the detector)

Voltage tolerance AC: +10% / -15%

Voltage tolerance DC: ±15%

Power Consumption: 4.5VA Output relays: 240V/5A

Operating temperature: -20°C to +65°C

Storage temperature: -40°C to +85°C

Frequency range: 20 kHz to 170 kHz

Reaction time: 10ms Signal holding time: Unlimited / limited when loop is permanently covered 10 minutes

Sensitivity: Adjustable in 4 increments

Loop inductance: Total loop plus connection wiring: 50μH to 1000μH. Ideal is 100μH to 300μH

Loop connection wiring: Maximum length 20 meters, twisted at least 20 times per meter

Size of Housing: 78x40x108 mm (L x W x H)



Technical parameters of Loop Detector


Power supply 230V AC 115V AC 24V DC/AC 12V DC/AC
Frequency range 20KHz ~ 170KHz
Sensitivity Adjustable in 4 increments
Reaction time 10ms
Channel Single
Operating temperature -40ºC ~ +80º
Relative humidity <90%
Environmental compensation Automatic drift compensation
Output mode electric relay
Loop inductance Ideal is 100μH to 300μH(Connection included)
Size of Housing 78x40x108 mm (L x W x H)



Main Features:


1) Reset Switch : The reset switch enables the detector to be manually reset during commissioning and testing . This results in the detector re-tuning the sensing loop and becoming ready for vehicle detection ;

2) Selectable Pulse Time : This feature sets the length of time that the pulse relay will be energized for 1 Second or 0.5 Seconds ;

3) Pulse Relay Selection : The Pulse Relay may be configured to energize on detection of a vehicle or when the vehicle leaves the loop ;

4) Sensitivity Boost : This feature sets the undetect level to maximum sensitivity and is used to prevent loss of detection of high-bed vehicles ;

5) Switch Selectable Sensibility : 4 sensitivity setting are available on the switches to allow flexibility in configuration ;

6) Switch Selectable Frequency : 4 frequency settings are available to prevent cross-talk between adjacent loops ;

7) Filter Option : This option is used to provide a delay between detection of the vehicle and switchiing of the output relay . This relay is normally used to prevent false detection of small or fast moving objects ;

8) Permanent Presence Option : This feature ensure detection of the vehicle will be maintained when the vehicle is parked over the loop for extended periods .


Reset Switch Adjustable 100ms 200m Inductive Loop Detector 0

Reset Switch Adjustable 100ms 200m Inductive Loop Detector 1




Detail image

Reset Switch Adjustable 100ms 200m Inductive Loop Detector 2


Reset Switch Adjustable 100ms 200m Inductive Loop Detector 3




Wiring diagram



Operation and Indication

While the detector is tuning, the green Channel LED and red Power LED will be turn on. It remain about 2 seconds, then the green LED turn off. If a loop fault exists the Channel LED will come on and flash indicating a fault. If the fault is self-healing the detector will continue to operate.The green channel LED will also glow whenever a vehicle is detected passing over the inductive loop. The red Power LED at the top of the unit will remain on to indicate that the unit is powered.


Frequency To eliminate interference of two neighbouring wire loops or loop detectors, the frequency can be altered.


Sensitivity The sensitivity of the detector allows the detector to be selective as to the change of inductance necessary to produce an output. There are four sensitivity selections and are set as follows by DIP3 and DIP4 Switch.


Automatic Sensitivity Boost

Automatic sensitivity boost is selected by DIP5 switch on the front of the enclosure and is set as follows: OFF - Disabled, ON – Enabled. Automatic sensitivity boost causes the sensitivity to be boosted to a maximum on detection on the vehicle, and maintained at this level during the presence of the vehicle over the loop. When the vehicle departs the loop and detection is lost the sensitivity reverts to the pre-selected level.


Reset Switch Adjustable 100ms 200m Inductive Loop Detector 4

Filter To eliminate interference of the bad environment, the filter mode is activated by setting the DIP6 Switch to “ON” site. In this mode, the reaction time of the detector is delayed, and the sensitivity is reduced. Usually, the filter mode is disabled by setting the DIP6 Switch to “OFF” site.


【Attention】 If the detector isn’t working normally, you must check the loop and wiring at first, and then alter the frequency or the sensitivity. At last, try to set it to filter mode.


Output Relay If DIP7 is “OFF” site, when a vehicle is detected passing over the inductive loop, the relay1 and relay2 are energized; When the vehicle is detected departing the loop, the relay1 and relay2 are de-energized.If DIP7 is “ON” site, when a vehicle is detected passing over the loop, the relay2 is energized;When the vehicle is detected departing the loop, relay2 is de-energized , and delay 500 ms, the relay1 is energized for 500 ms.


Presence Time

The presence time may be set to permanent presence or to limited presence. In permanent presence mode the detector will continuously compensate for all environmental changes whilst there is a vehicle present over the loop, the presence mode is set with DIP8 Switch and is configured as follows: OFF:Limited Presence ( 10 minutes), ON:Permanent Presence


Reset Switch

The detector automatically tunes to the inductive loop connected to it when the power is applied, whether on initial installation or after any break in power supply. Should it be necessary to retune the detector, as may be required after changing any of the switches or after moving the detector from one installation to another, momentary operation of the RESET switch will initiate the automatic tuning cycle.