Lightronics RE82D - Manual (Page 2)

Page 2 of 8
RE - 82 RACK MOUNT DIMMER
Revision 2.4
OWNERS MANUAL
11/29/2007
www.lightronics.com
Lightronics Inc 509 Central Drive, Virginia Beach, VA 23454 TEL 757 486 3588
DESCRIPTION
The RE-82 is an 8 channel dimmer with a maximum capacity of 2,400 watts per channel giving a total of 19,200
watts. The RE-82 is controlled by a lighting console. The unit can be supplied to use either the DMX-512 control
protocol or the LMX-128 control protocol. Channels A - D and/or channels E - H may be switched to operate in
"relay" mode. In relay mode channels are either full on or full off (non-dim) depending on console fader position.
The unit is overcurrent and overtemperature protected. A fan is used to ensure proper cooling. Dimming
channels may be reassigned in multiples of 4 channels via switches in the front panel.
POWER REQUIREMENTS
Each RE-82 requires BOTH PHASES of a SINGLE PHASE 120/240 VOLT AC service or TWO PHASES of a
THREE PHASE 120/208 VOLT AC service. The neutral conductor is shared by two hots so it is important that the
two hots used are of different phases. EACH PHASE must be capable of providing 80 AMPS. Line frequency can
be either 50 or 60HZ. One or more RE-82 dimmers are to be installed into a standard 19" equipment rack with
provisions for connection to an appropriate electrical service in accordance with the National Electrical Code.
LIGHTING LOAD CAPACITY
Each RE-82 channel has a 2400 Watt MAXIMUM rating and is protected by a fast acting 20 Amp circuit breaker.
20 Amps equates to 2400 Watts at 120VAC. If you operate a channel at 2400 watts then you are very close to
tripping the breaker. This will occur if AC line voltages are high or you have power surges. Other conditions
which may cause the fuse to blow include turning a cold lamp quickly on to full intensity. A maximum practical
load of 2000 Watts per channel will allow for some overhead and help prevent breaker tripping.
INSTALLATION
PLACEMENT
The RE-82 is designed to be mounted in a standard 19" equipment rack using the four mounting holes in the face
plate. If the dimming system will be used for touring shows, it is recommended that you provide additional support
for the rear of the unit. The dimmer is fan cooled and requires no space between units when multiple dimmers are
used together in a rack. Air enters the dimmer through slots on the side and exits through holes in the bottom of
the face plate. Make certain these ventilation holes are not obstructed. Do not place the RE-82 where it will be
exposed to moisture or excessive heat.
RE-82 CONTROL PANEL