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Vehicle Detector Loop Kits













A610 Loop Vehicle Detector.


The 610 Loop Vehicle Detector is an intelligent, extremely flexible and very affordable product. The 610 is designed to accommodate numerous applications and intelligently adjust to environmental conditions, virtually eliminating false detection. It is intended to be connected to a 3- to 5-turn preformed loop such as the Model 865 or a saw-cut loop such as Models 866 or 867.

The housing is constructed of durable black ABS plastic. Legend art is printed on the cover to clearly identify the connection points and the LEDs. The case provides two mounting tabs for use with the provided hardware. In addition, the 610 is also shipped with Velcro mounting strips for an alternative mounting method.

Modes of Operation

The type of output signal can be programmed to any of four possibilities:

•Constant signal on detection.

•Pulse on vehicle arrival.

•Pulse on vehicle departure.

•Pulse on arrival and departure.


Environmental tuning

The 610 is operational within three seconds of applied power. As environmental conditions slowly affect the loop frequency, the 610 detector follows the change, recording the change every half-second. However, vehicle presence is never tuned out. Hold time is infinite on the detection of a vehicle. If a large metal mass were to affect the loop and create a detection, the next vehicle would correct the presence signal when it departs. In essence, the detector is self-correcting.

Signal delay on arrival

One of four delay periods can be programmed. The programmed time delay is the length of time from the detection of a vehicle to the actual output of the signal.

Signal delay on departure

One of four delay periods can be programmed. The programmed time delay is the length of time between the departure of a vehicle to the absence of the output signal. For example, if a one-second delay is selected, then the output signal will drop one second after the vehicle is no longer detected.

Loop fault

When a loop fault occurs, the red LED is lit and signal outputs go to a presence state. Loop faults are triggered when the loop frequency falls below 20 kilohertz or rises above 75 kilohertz, indicating a loop open or short, respectively


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