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this is a pir motion sensor switch having dual output. it can handle the load of an air conditioner of capacity up to 2 tons without a contactor and a lighting load of 200 watts simultaneously and inde-pendently in six different user selectable operating modes. this is an ideal product for saving energy while using air conditioners.
the device detects movement based occupancy and keep the connected appliance (like air conditioner, lights, fan etc) on. it turns off the connected load when its detection area is vacant. the lux level setting equipped with the device helps in turning on the lights only when day light / ambient lux level falls below a de-sired selectable level.
in offices electricity consumption due to air conditioners plays a major role. a 2 ton ac consumes 3 units in one hour. considering electricity charges as rs 10 per unit, and a saving of 2 hours with the device, a monthly saving of rs 1800.00 is achieved, which results a pay back of 3 months approximately
auto mode (default mode):
output’s will be switched on based on occupancy, and remains on depending on the off-delay set by user after detecting last motion.
manual mode :
auto mode can be overridden to various operating modes by using override switch, performing number of switching operations prescribed in user manual within a span of six seconds. sensor will then switch on-off lamp once as an indication towards successful change in operating mode. if the unit is working in manual mode and is not overridden to auto mode, it will return to auto mode automatically after 2 hours