10/15/2020
(C) 2020 BOLTEK CORP
EFM-INV_Instruction_1.3
FIELD OF VIEW
The electric field mill requires a 360 degree view of the sky to detect the static charge on overhead
clouds.
Obstructions within the field mill
’
s field of view may reduce the sensitivity and lightning strike detection,
it is also recommended that any large objects or structures are no higher than a 30 degree angle up
from the surface directly below the sensor.
Secure the tripod to the roof or patio slabs/concrete pad on the ground. For a no-holes tripod
installation on a flat roof the tripod may be secured to patio slabs placed on the roof. Run cables away
from the field mill sensor, not directly underneath.
