7.2.5.1 Twilight sensor activation threshold
adjustment
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).
OFF
Fig. 12
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.
After making the adjustments make sure
that the plug is closed tight to ensure
perfect sealing.
7.2.5.2 Disabling the twilight sensor
To deactivate the illuminator from automatically
switching itself on, fully rotate the adjustment
trimmer anticlockwise (end run) (Fig. 12, page 10).
This way, switching the illuminator on and off will be
controlled by an external control (switch).
10
MAX
7.2.6 LED illuminator power adjustment
Adjusting the power of
the infrared illuminators
Adjusting the power of
the infrared illuminators
Fig. 13
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. 14
After making the adjustments make sure
that the plug is closed tight to ensure
perfect sealing.
MAX POWER
MNVCIRN_1828_EN