Led Illuminator Switching On Threshold Adjustment; Led Illuminator Power Adjustment - Videotec ULISSE2 Manuel D'instructions

8.9.1 LED illuminator switching on
threshold adjustment
Switch-on threshold
regulator
Fig. 50
The illuminator has an integrated twilight sensor that
allows its automatic activation and deactivation at
predefined luminous conditions.
The twilight sensor is set in the factory at a
predetermined luminous level, suitable for most
installations (approximately 50lx). If you want to
adjust in different ways the threshold, loosen the
plug on the illuminator rear and proceed for the
adjustment with a screwdriver.
By rotating the trimmer clockwise, the night mode
changeover is anticipated (at a greater luminous
value). By rotating the trimmer anti-clockwise,
the night mode changeover is delayed (at a lower
luminous value).
Wait for appropriate brightness before switching on
the illuminator. Rotate the trimmer slowly until the
LED on the side of the trimmer switches on. Once the
intervention threshold has been surpassed (LED on),
rotate it slightly in the opposite direction.
MIN
OFF
Fig. 51
After making the adjustments make sure
that the plug is closed tight to ensure
perfect sealing.
MNVCU2_2222_EN
MAX

8.9.2 LED illuminator power adjustment

The illuminator is set in the factory to provide
maximum power. If you don't need to illuminate
distant subjects or if the image is over-exposed for
excessive brightness, decrease the power, so that
energy saving is also obtained.
Fig. 52
Loosen the hermetic plug. Rotate the trimmer,
clockwise to increase the power of the infrared
illuminators and anti-clockwise to decrease it.
MIN POWER
Fig. 53
After making the adjustments make sure
that the plug is closed tight to ensure
perfect sealing.
Infrared power control
MAX POWER
31