Figure 19 Profile Screen. Electronics Diversified BIJOU 2.11, BIJOU Ver. 2.11

Figure 19 Profile Screen output of the dimmer equal to the percentage of travel of the fader. So if you raise a channel fader to a level of 65 the dimmer will be at 65% of its total output. If you do not select a different profile for a dimmer when you create your patch screen the Bijou will automatically assign Profile 1 to the dimmer.

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You will see on the PROFILE screen Profiles 2, 3 & 4 listed as Preheat. The selection of a Preheat Profile for a dimmer causes a small amount of current to be sent out of the dimmer even when the dimmer control fader and grand master is at ‘0’. This may be desired for outdoor dramas where condensation in a fixture could cause lamp failure or cracked lenses if they were suddenly turned from off (cold) to on. Another use of preheat is so that lamp filaments do not

POP on. A cold filament requires a substantial current to get it to glow, buy preheating the filament the lamp will fade up rather than pop on. The three preheat choices allow you to select the right amount of current for the size of filament you are working with.

Profile #6 is “Square Law” which, in theory, makes the visible output of lamp equal to the percent of travel of the fader controlling the dimmer output. So, in theory, if the fader is faded up to 35 the lamp will appear to be at 35% of its total light output. This is of coarse dependent on the optics of the fixture, the size of the lamp filament, the input power voltages to the dimmers and the length and size of the wiring from the dimmer to the fixture/lamp.

Profile #7 - Ballast. Used for non-incandescent fixtures such as neon, cold cathode & flourescent which need a higher starting current to get them to ignite/light.

Profiles 8 - 25 are user configurable to allow you to modify any dimmers output to your needs. To modify a profile go to it by use of the [Next] [Last] key or use [F3] followed by the desired profile number. So to go to Profile 17 you would push [F3] [1] [7] [Enter]. The number 17 (in the left column) will change from green to yellow indicating that you have selected that profile to modify.

To modify the output levels of a profile (in this case

Profile 17) you next enter the percentage of the fader output from the top row then use the [At] key followed by the percentage of dimmer output desired followed by [Enter]. So to make Profile 17 have a dimmer output of 30% when the fader is at 45 the sequence would be: [4] [5] [At] [3] [0]

[Enter]. Note the change in the 45% column of Profile 17.

As most productions use low wattage (1,000 watts or less) incandescent lamps the need to modify or select a profile other than Profile #1 is limited to special case applications and you may find you never select a profile in the

PATCH screen as Profile 1 is entered automatically as the system default.

To clear any modifications you have made to any of the profiles on this screen go to [Setup] hit [Next] [Next] which takes you to Clear Functions, hit [8] and at the “Are You

Sure?” prompt hit [Enter]. If you now return to the PATCH