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Photocell sensitivity
To adjust photocell sensitivity first remove the sealing screw, then adjust the
potentiometer to turn the lamp on at the desired lighting conditions, using a
thin (maximum 2.5mm or 0.1inch diameter) flathead screwdriver. Turn the
potentiometer fully clockwise to disable the photocell.
NOTE:
Replace screw after adjustment to
ensure IP67 protection
Fig 6: Adjustment of the photocell sensitivity
Photocell operation
The photocell is designed to automatically switch the lamps ON at dusk and
turn OFF at dawn. The potentiometer factory-set at mid-point 500 Lux ON
and 850 Lux OFF (approximately). A high degree of hysteresis is
incorporated to avoid ON/OFF switching in marginal light conditions.
Power adjust
To adjust power first unscrew the sealing screw. The potentiometer is
factory-set at the maximum calibration point (fully clockwise). To decrease
the power turn the potentiometer counter clockwise, using a thin (maximum
2.5mm or 0.1inch diameter) flathead screwdriver.
Remove sealing screw for access to
photocell adjustment potentiometer.
NOTE:
Replace screw after adjustment
to ensure IP67 protection
Fig 7: Adjustment of the output power
Photocell will switch lamp ON
Photocell will switch lamp ON
earlier (at higher light levels)
later (at lower light levels)
Power
reduction
Hi
Factory-set at 100% power rating,
potentiometer turned fully clockwise.
11
Turn clockwise to
increase photocell
sensitivity
Note:
Power can be reduced
by up to 85% if image
over-exposure occurs.
Below 85% reduction
the LED's will oscillate.
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