Equipment grounding
The sensor must be properly grounded. It is sufficient to ground the mounting bracket if the sensor is connected to a grounded metal mast and is in electrical contact with it. Otherwise, the mounting bracket should be earthed with the supplied ground lug (see Ground lug).
A ground wire with a minimum cross section of 6 mm2 and maximum length of 5 m should be used. The pole and foundations of a pole-mounted installation will provide some basic lightning protection and reduce radio frequency interference when correctly grounded.