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Movement of Sensor
After installation, the sensor must not be able to move or be subjected to high
levels of vibration, otherwise false detect signals may occur.
Where a sensor is installed inside a duct from a footway chamber, it is
recommended that the sensor cable should be tie-wrapped to the outside of the
duct wall to prevent movement of the sensor or any accidental snagging from any
other cables that are subsequently installed in or through the chamber.
In some applications it may be acceptable to fit the sensor within a chamber or pit
using spring clips fastened to the chamber or pit wall.
Certain kerb materials are designed with a bore and may accept an RTM300
sensor.
Users are strongly advised to trial any mounting location before committing to the
final deployment.
Electrical Interference
As the RTM300 sensor detects changes in the earth’s magnetic field, it is
recommended that the sensor is not installed inside a duct that contains mains
cables, as these may affect the field strength and detector performance.
If High (HV) or Extra High Voltage (EHV) power cables are known to exist close
to the proposed sensor location, then a trial survey should be carried out before
installing the sensor to assess any potential impact on the sensor performance.
