This Manual is applicable to the De Sisti F4.7 Vari-White
Revised on July 2018
ILT ITALY srl
Via Cancelliera, 10/a
00041 Albano Laziale (Rome) Italy
tel. +39 06-902901 fax +39 06-90231051
www.desisti.it
LOCAL DIMMING CONTROL
This function is to LOCALLY DIM THE LED INTENSITY from 0 to 100%
(Product is delivered with default setting of the Dimmer at 0)
he right knob is doing the dimming action and it goes with a fine tuning in
normal condition, or a fast dimming when rotating KNOB 2 while keeping
KNOB 1 pressed in.
When the DISPLAY is in STAND BY Mode, please rotate
KNOB 2 to act on
the LIGHT INTENSITY Dimming…Clock
Wise to increase the level and Counter Clock Wise to
decrease it. Fine control:
1 full TURN of the KNOB 2 = 5% Dimming Variation
For faster Dimming Control keep KNOB 1 pressed
and rotate KNOB 2:
1 full TURN of the KNOB 2 = 40% Dimming
Variation
1 full TURN of the KNOB 2 = 5% Dimming Variation
LOCAL CORRELATED COLOR TEMPERATURE
CONTROL
This function is to LOCALLY ADJUST the CORRELATED
COLOR TEMPERATURE from 2.750°K to 6.900°K (Product
is delivered with default setting of the CCT at 2750°K)
The rotation of KNOB 1 will determine CCT increments
according to the following table (STEP MODE)
If a continuous CCT Adjustment is required (LINEAR
MODE) it is necessary to operate through a DMX Console:
please see DMX parameters above
LOCAL OR REMOTE CONTROL SETTINGS
The LED Fresnel has the facility to block the LOCAL DIMMING and CCT
SETTINGS and maintain it when the POWER is turned off and than on again.
This allows for the LIGHT to be TUNED and FOCUSED locally and its dimming
plus CCT level can be blocked, so that for instance a system lighting a SET can be
operated by a remote switch or simple brakers by TURNING POWER ON.
The machine is set to Auto save OFF as default: in this condition the Fixture can
be controlled locally until a DMX device is connected to it. Once the Console will
be acting it will take priority over any local control.
To turn the Auto sve ON please follow these instructions:
- rotate KNOB 2 and select Auto save OFF
- press KNOB 2 to highlight the status of Auto save, in this case OFF
- rotate KNOB 2 to turn the status of Auto save to ON and press it
- leave the settings in this condition; the light will ignore any DMX Control. In this
mode any local dimming setting will be maintained and will be automatically
recalled after power off, when turnig the power on again.
CHANNEL SETTING (RESOLUTION & FUNCTION)
This function is to SET THE DIMMING RESOLUTION either at 8 bits or at 16 bits.
Select DMX resol by rotating and pushing KNOB2, the following choices are
available:
- 8 bits resolution (the display will show 8 bit). The fixture utilizes 1 DMX Circuit for
the Light Dimming, which is the BASE CIRCUIT set in the ADDRESS.
- 16 bits: 16 bits resolution (the disply will show 16 bit and this is the default
setting).
The fixture utilizes 2 DMX Circuits:
The Base Circuit set in the address is the Coarse Dimming, the second Circuit
(Base +1) is the Fine Dimming.
Of course the benefit of the 16 bits function the corresponding circuits on the DMX
Lighting Board shall also beset at 16 bits.
The DMX channels Base +2 and Base +3 are dedicated to the CCT Variation
Control as described previously.
