User Manual

9
Chapter 2 Installation
Installation Environment
In order to ensure the optimal operation of the detector and the maximum flow of people, the following important factors are taken
into account to minimize the impacts made by different interference sources.
Large fixed or immovable metal objects should be at least 10cm (4in) away from the detector (to detect large metal objects). This has
less impact on the sensitivity, but may make the detector more susceptible to vibration.
The ground should be flat, with strong support, to prevent vibration, especially when there are vibration metal structures under the
ground.
The large metal objects moving outside the detector shall be kept at least at a distance of 0.5-2m (20-79in) from the detector to avoid
false alarm. According to the size of the metal object, the distance between the required moving metal object and the detector may
different.