Specification Sheet

Appendix | Glossary
200
www.lutron.com | 1.800.523.9466 |
www.lutron.com | 1.800.523.9466 |
Power Failure Memory
When power is restored after a power failure, lighting
and shading is restored to the same levels set prior to
the power-failure. This minimizes the inconvenience of
power service interruptions.
Preset
Predetermined light intensity (shade position) for a
lighting (shade) zone that can be recalled by pressing
a single button. Also see Scene.
Quiet 3-Speed Fan Control
A fan control that offers three pre-set speeds plus off,
and can typically be used for controlling one ceiling
paddle fan. These fan controls do not cause the
motor to hum. Also see Fully Variable Fan Control.
Quiet 7-Speed Fan Control
A fan control that offers seven pre-set speeds plus
off, and can typically be used for controlling up to
four ceiling paddle fans. These fan controls do not
cause the motor to hum. Also see Fully Variable
Fan Control.
Radio Frequency (RF)
RF provides a wireless control method for operating
lighting, shades and other systems. Lutron utilizes
Clear Connect
TM RF control technology operating at
frequencies in the 400Mhz range that pass through
most materials, and are designed to be extremely
reliable. Lutron’s methods provide less interference
to and from other devices.
Radio Frequency Interference (RFI)
RFI is generated by most electronic equipment,
including solid-state dimmers. RFI can create a
buzzing noise in nearby audio and radio equipment.
Every Lutron dimmer contains a filter to suppress
RFI; additional filtering may be required in some
applications. It is recommended to keep dimmers
eight feet away from AV and other electronic
equipment to minimize RFI interference.
RFI Filter
An electrical circuit that is part of all Lutron dimmers.
It is intended to reduce radio frequency interference
(RFI) and lamp buzz.
Scene
The lighting effect achieved by adjusting one or
more zones of lighting to the desired intensity.
Also see Preset.
Sensor
A device that detects motion, daylight, heat, partition
location, etc., and provides the information to allow
for automatic control of lighting, window shading and
other building systems.
Single-pole Dimmer/Switch
A switch or dimmer that controls a lighting zone from
one location only.
Slide-to-Off
Style of dimming control with a linear slide knob in
which the lowest travel position is off.
Smart “Electronic” Dimmers
Smart dimmers use a microprocessor to set the light
level and offer more advanced features, such as
multi-location control, RF or IR remote control
capability, long fade times, etc. These dimmers
typically have a tap switch for on/off, a rocker switch
to change light levels and a column of LED’s to
indicate relative light levels.
Square Law Dimming
A dimmer or control is calibrated so that the linear
slider position or LED indicator column provides a
true representation of the light level, as perceived by
the user. For example, if the slider is set at the halfway
point or one-half or the column of LEDs is lit, the
light level appears to be at 50%. Dimmers adjusted
in this way will also use the full range of the slider or
LED indicator without any “dead” travel at the top or
bottom slide position, or indicator LED column.
pe
r
ceived light
lev
e
l
% Slider Travel
% Light
25
25
50
50
75
75
100
100
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o
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Square law dimming