Dimmer Test; Reference Voltage; Thermal Management - ETC SMARTRACK User Manual

Smartrack User Manual
chasers or practicals might be set to 30mS for special effects work. A tour-
ing rack used for concert lighting, on the other hand, might be set globally
to 30mS, but with the odd 10kW dimmer at 500mS.
IMPORTANT: A slower response speed will also have beneficial effects on
lamp life, since the shock to cold filaments will be reduced, as the time
period required to ramp them to full brightness is increased.

2.4.3 Dimmer test

Any or all dimmers may be selected and set to a level, using the rotary
potentiometer on the front panel. The dimmers in a rack may be 'flashed
through' to a level, by setting the pot to the desired intensity, and stepping
through the dimmers using the

2.4.4 Reference Voltage

Smartrack needs to know the voltage expected by the user for full on
(100%), to which all other levels are scaled. This reference voltage is set
by the user or installer, using the rack controls.

2.5. Thermal Management

Smartrack runs remarkably cool, and uses computer controlled brushless dc fans
to do so with minimum noise and maximum fan life. One fan is incorporated into
the end of each power assembly, and air is drawn very efficiently over the
chokes and power device heatsinks before being exhausted through the front
panel.
Since Smartrack's air inlet and exhaust vents are all on the front panel, there is
no problem stacking Smartracks vertically and horizontally, or mounting in sim-
ple flightcases.
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or buttons.
ETC Ltd