26
6.6 Iris
Motorized iris for different beam diameters
6.7 Shutter / Strobe
The shutter unit is situated on the gobo wheel and it enables to produce strobo effect from 1 to 7 flashes per
seconds.
6.8 Effect wheel
This wheel has both hot and cold color temperature filters (3200 K and 5600 K). Total numbers of color combinations
are 36.
6.9. Dimmer / Wash light
0 - 100% smooth dimming and the wash light is provided by the special effect wheel.
6.10 3-facet prism
3-facet prism is situated at the special effect wheel.
6.11 Fan:
The SC-740 is cooled by axial fan situated at the rear side of the lighting. The speed of the fan (of course the noice)
can be continuously reduced if very quiet performance is required.
By the control board using the "FAnS" function you can choose 3 types of low fan speed operating:
1. "reG" - continuous controlling of the fan speed
the fan automatically raises its speed in order to control inside temperature of the lighting,
if the temperature inside increases about certain level (the low fan speed reduces the cooling of the lighting).
This cycle can repeat several times until the temperature inside is on suitable level.
2. "Lo.HI"- low/high speed of the fan operating
the fan keeps the adjusted low speed until the temperature exceeds max. inside temp. of the fixture, then
the SC-740 automatically switch from low to high the fan speed.
3. "Lo.OF" - low speed / Switch Off the lamp operating
the fan keeps the adjusted low speed until the temperature exceeds max. inside temp.. then the SC-740
automatically switch Off the lamp.
7. The SC-740 Control Board
The control board situated on the top side of the SC-740 offers several features. You can simply set the lighting
address, read the number of lamp or unit hours, switch On and Off the lamp, run test show, make a reset and
also use special functions for manual, demo and service purposes.
The main menu is accessed by pressing the [Mode] key - press this one so many times until the display shows
message "A001" (with actually stored address). Browse through the menu by the pressing [Up] and [Down]
keys - the display shows step by step these messages: A001, rPAn, rTilt, 16br, Lati, Poti, LAMP, tESt, rESE,
SPEC. Press [Enter] if you wish to select one of them. The functions provided are described in the following
sections and the function hierarchy is shown below.
7.1 Main functions
- DMX 512 Address settings:
The letter "A" flashes. Use the [Up] and [down] keys to select required address (001 - 496) and press [Enter] to
confirm or [Mode] to cancel and return to the main menu.
- Pan reverse:
This function allows you to invert the pan movement. Use the [Up] and [Down] keys to select "On" if you wish
this feature or "Off" if you don’t wish this feature and press [Enter] to confirm or [Mode] to cancel and return
to the main menu.
- Tilt reverse:
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