Field-adjustable power control arrangement and methods of contro

Details Field-adjustable power control arrangement and methods of contro Field-adjustable power control arrangement and methods of contro

1985-03-19

1986-05-06

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

315360, H01J 4014

Patent

active

045874174

ABSTRACT:
A field-adjustable power control arrangement for and method of controlling outdoor lighting systems in accordance with a timing cycle which turns an outdoor lighting system off at dawn, on at dusk, off at a nighttime turn-off time after dusk, and on at a morning turn-on time before dawn. The nighttime turn-off time and the morning turn-on time are manually adjustable in an analog and digital manner so as to permit easy and rapid field adjustment and/or factory pre-adjustment.

REFERENCES:
patent: 4008415 (1977-02-01), DeAvila-Serafin et al.
patent: 4147961 (1979-04-01), Elms
patent: 4198574 (1980-04-01), Price et al.
patent: 4209728 (1980-06-01), Membreno
patent: 4237377 (1980-12-01), Sansum
patent: 4292570 (1981-09-01), Engel

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