7 INSTALLATION: ELECTRICAL
MAINS ELECTRICAL POWER SUPPLY
Mains powered Sensor Operated Products must be connected to a
(fused / switched) continuous permanent power supply.
Connection to an interrupted power supply intended to stop
electrical consumption in an unused facility, may adversely affect
the Sensor product and is therefore not recommended.
Each time the power supply is reinstated the product enters
reprogramming mode.
During reprogramming mode, any interaction (passive or active)
with the product may alter the sensor settings in respect to range
and / or run duration.
No signicant savings will be achieved by connection to an
interrupted supply. These products are intrinsically economical in
terms of both water and electrical energy and will shut down in the
event of a sensor being obstructed.
8
Abbreviations & terminology used
PSU: Power Supply Unit, either mains, battery or link versions.
PCB: Printed Circuit Board inside the PSU.
RCD: Residual Current Device
SELV: Safety Extra Low Voltage
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