When investigating power supply faults it is important to check that all voltages are within the
detectors operating range (18V to 32V) under full load conditions as the voltages measured under
no load conditions can be misleading.
7.6
Poor quality video is often a result of earth differentials, induced noise and/or inadequate
screening. These issues require attention if video quality is a priority. Poor quality video does not
affect the functionality of the FDS301 detector. Video can be verified from the detector using a
portable viewing unit connected to the video output terminals. If there is video directly from the
FDS301 then the control system must be examined for failures.
This document is strictly private and confidential, reproduction without Micropack approval is prohibited. © Micropack Engineering Ltd, 2015
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