Traffic Counter Sensors
The SS-MS30 Magnetic Field Vehicle Counter Sensor
The SS-MS30 sensor uses a passive sensing technology to detect large ferrous objects. The sensor measures the change in the the Earth's natural magnetic field (ambient magnetic field) caused by the introduction of a ferromagnetic object. The SS-MS30 sensor provides a direct replacement for inductive loop systems, and needs no external frequency box. Its unique design allows quick installation within a single 3/8" saw cut. For applications where pavement has not been poured, consider the SS-MS30 S18M, which can be mounted or replaced without disrupting the pavement.
Sensor Field of View and Range
Sensor Field of View and Range - The sensor range depends on three variables:
1. The local magnetic environment (including nearby ferrous material)
2. The magnetic properties of the object to be sensed
3. Sensor settings
The Q7M can detect changes in the ambient magnetic field in all directions. As with other sensors, the range will depend on the target. The strong disturbance of a large ferrous object decreases as distance from the sensor increases, and the magnitude and shape of the disturbance is dependent on the object's shape and content.
The sensor can be programmed to react to magnetic field disturbances of greater or lesser intensity, using two adjustments: background condition and sensitivity level.
Once background condition and sensitivity level are set, and both settings are stored in non-volatile memory, the sensor is ready to detect the target object.
* * Note: The Q7 will continue to sense a vehicle in its sensing field, even when the vehicle is stopped.
