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PIR Activated First Pulse Timer
PIR Activated First Pulse Timer
ARC Ventures is specialised in manufacturing and import of a wide range of energy saving devices like automatic twilight switch, PIR sensor, pulse timer, electrical lighting energy saving sensors and so on. The company offers a PIR activated First Pulse Timer. This saves about 90% lighting energy in LT/ HT panel rooms and server rooms. When a person enters the LT room, his infrared radiation will trigger on the lights, this will be kept on by a special pre-settable first pulse timer (20 to 60 minutes). His cycle time is say, about 15 min and once in 4 hours. After 15 min, he leaves the room, and when 20 min are over from his entry, the timer will switch off the lights, as the infrared sensor only takes the initial sensing on entry and at the start of the timer. Thereafter it discards other sensing. Only a zero watt bulb is needed to be kept on. The timer could be set to a desired time depending on the cycle time. The pay back is within one week for about 15 tube lights.