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in the input connector.
Note:
It's necessary to insert the XLR termination plug (with 120 Ohm) in the last lighting in the link in order to
ensure proper transmission on the DMX data link.
Lamp
The MH-640 is to be operated with a MSD 230 V/250 W GY-9.5 or MSD 230 V/200 W GY-9.5 lamp.
A relay inside of the MH-640 allows you to switch on and off the lamp via the Control Board on the top side
or via your controller without affecting the rest of the lighting.
Switching on and off the lamp via the Control Board
1. Switch on the MH-640 and wait until the fixture reset has finished.
2. Press the [Mode] key in order to access the main menu. Browse through the menu by pressing the [Up]
and
[Down] keys until the display shows "LAMP". Confirm by pressing [Enter] key.
3. Use the [Up] and [Down] keys to select "On" for switching on the lamp and "Off" for switch off the lamp
and press [Enter] to confirm or [Mode] to cancel.
Note :
It is also important to note that the discharge lamp is a cold restrike type, which means that it has to be cold
before re-striking. For this reason, you have to wait 5 minutes (max. speed of fan must be adjusted) after
having switched off the lamp before you can switch it back on again. If you try to switch on the lamp within 5
minutes after having switched it off, the MH-640 will store this information and automatically ignite the lamp
when the 5 minutes period has expired. The message "HEAt" will appear on the control board display at the
back side of the MH-640. If the ignition of the lamp is seven times unsuccessful, on the display will appear
"LA.Er", meaning that the lamp could be damaged or even missed, or there could be a failure on the ignitor
or ballast.
Colour-wheel
The MH-640 features a colour-wheel with 7 color positions - 6 of these with dichroic colors and the last one
open. The wheel can be positioned between two adjacent colors in any position. It is also possible to rotate
the color-wheel continuously at different speeds - the so-called "Rainbow effect" is created.
CMY- Colour-mixture
The CMY color mixing system is based on graduated cyan, magenta, and yellow color filters. A continuous
range of colors may be achieved by varying the amount of each filter from 0 to 100%.
Beam-effects
The beam-shaper allows you to widen and flatten beam. Beam shaper rotates within 180°.
Frost-filter on the same wheel as beam shaper softens the beam.
Dimmer
Smooth 0 - 100 % dimming is provided by the dimmer-unit.
Shutter / Strobe
This unit provides strobe-effects between 1 and 10 flashes per second.
Fan
The MH-640 is cooled by three axial fans - one each in the projector head and one in the base. The speed of
the fan (and of course the noise) can be continuously reduced if very quiet performance is required.
By the Control Board using the "FAnS" function you can choose 4 types of low fan speed operating:
1. "HIGH" - high speed of the fans
The cooling fans work on max. speed (max. cooling).
2. "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.
3. "Lo.OF" - low speed / Switch off the lamp
The fan keeps the adjusted low speed until the temperature exceeds max. inside temp. then the MH-640
All manuals and user guides at all-guides.com
Remotely controllable functions
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