January, 2016 120-61
Model F120 UV/IR Flame Detector
Transient Interference or Power Surges
Transient voltage suppressors in the electronics module protect the electronics from transients
that may be induced into the eld wiring during operation.
The terminal marked Terminal # 10, SURGE GROUND, inside the enclosure is factory
connected to Terminal # 7, 0 VDC IN, to complete the suppression path.
In areas where there are severe high energy transients, including those caused by lightning,
you may get more effective transient suppression by removing the factory jumper and
connecting Terminal # 10, SURGE GROUND, to the earth ground screw inside the detector
enclosure.
!
WARNING: The above change can be made only if the enclosure is rmly connected
to earth ground and the voltage measured between the earth ground screw and the
0 VDC IN terminal is not greater than the 2.0 volts DC.
To Next Page
Loading...