PS-1

Photo-electric switch

The PS-1 monitors outside light fixtures according to daylight, this
includes Playgrounds, offices, schoolyards, garage, stores exhibit windows
etc’. It switches on when it getting dark and switch off as soon as the day goes
on even if the weather is cloudy during day time. The electronic device built
inside robust waterproof case for outdoor install. Device Adjustment:
brightens value can be adjusted between 30 to 930 Lux. Adjustment is
done directly on the PS board as it shown on the diagram. By turning the
adjustment knob to (D) position “dark state” the relay will energize as
soon as it will start to darken outside. Turning the knob to (L) position “light
state” the relay will energize in brighter illumination. In order to prevent
random switching, the PS has an internal delay of 20 sec. This prevents
momentary light flashes such as car dazzle or short dark periods appearance,
usually caused by cloudy days etc’.

Technical data