The
15 amp AR-1215 AC Line Voltage Regulator is intended to protect audio,
video, computer and other electronic equipment from problems caused
by AC line voltage irregularities-sags, brownouts, or overvoltages that
can cause sensitive digital equipment to malfunction, or, in extreme
cases, to sustain damage.
The AR-1215 is designed to provide a steady, stable 120 VAC output.
It accepts any input voltage from 97V to 141V and transforms it to a
constant 120V, ±5V. Voltages beyond that range may also be converted
to usable levels, depending on how far out of range they are. The AR-1215
can handle loads totaling up to 15 amps as long as the input voltage
is above 124 volts. For voltages below that level, its capacity must
be derated at approximately .15 ampere per volt.
The AR-1215 has been designed specifically with the unique needs of
audio and video in mind. Its technology differs from that of computer-oriented
voltage regulators in many important ways. For example:
The AR-1215 does not use a ferro-resonant transformer, which would be
heavy and bulky, radiate a large magnetic field, and be too frequency-sensitive
to be usable with generators. Instead, it uses a use a design based
on an eight-tap toroidal autoformer. The toroidal design assures minimal
leakage of stray magnetic fields.
The AR-1215 circuitry monitors the incoming line voltage with each cycle,
comparing it to an extremely precise voltage reference, accurate to
±0.15%. If a voltage fluctuation requires that a different tap
be selected, the new tap is electronically switched exactly at the zero-crossing,
to avoid distorting the AC waveform. (Most commercial voltage regulators
using multiple-tapped transformers switch taps at uncontrolled times,
thereby creating voltage spikes, and often creating clicks that can
leak into the audio.) Hysteresis of 1.5V in the switching circuits avoids
"chatter." The design is not sensitive to small errors in
line frequency, making them ideal for use with generators.
The AR-1215 also features power conditioning that is truly in a class
by itself, thanks to the quantity, quality and configuration of the
overvoltage suppression devices used. These include MOV's, high voltage
inductors and capacitors, and precise high-inrush magnetic circuit breakers.
This unique combination can safely divert large spikes as well as filter
audible high frequency noise.
An additional feature, Extreme Voltage Shutdown, senses dangerously
high or low voltages and shuts down the output before any damage is
done. The output remains off until the overvoltage or undervoltage is
removed, with an LED indicating the shutdown condition. This invaluable
feature provides positive protection to your equipment from accidental
connection to incorrect line voltages (for example, 220V when 120V is
expected-- a not uncommon hazard in the entertainment industries.)
The AR-1215 has eight outlets on the rear panel, and one on the front
panel. All outlets are regulated, spike-suppressed, and filtered against
RFI with a 3-pole filter. There are no controls except the circuit breaker/on-off
switch. A bar-graph meter comprised of 10 LED's indicates input voltage,
while another LED indicates "In Regulation" status (i.e.,
that the output voltage is within ±5V of 120V.) The unit is housed
in a compact, single-space rack-mount chassis, 1.75" high and 8"
deep (8.9 x 43.2 cm) and weighs only 12 lbs. (5 kg).
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SPECIFICATIONS |
Current
Rating:
|
15
amperes for input voltages of 124V (104V for AR-1215J in 100V mode)
or higher; derate at 113 mA per volt to a minimum of 12.3A
|
"In
Regulation" Range:
|
AR-1215:
Provides regulation ±5V in 120V mode from 97 to 141V.
AR-1215J:
Provides regulation + or - 4V in 100V mode from 80 to 122V
|
Shutdown
Range:
|
120V
mode, below 75V or above 150V;
100V mode, below 65V or above 135V |
Voltmeter
Accuracy:
|
+
or - 5V |
Spike
Protection Modes:
|
Line
to neutral, neutral to ground, line to ground |
Spike
Clamping Voltage:
|
Initial
turn-on at 200V; TVSS rating of 400 volts peak at 500 A, L-N, N-G,
L-G (tested to UL-1449) |
Response
Time:
|
1
nanosecond |
Maximum
Surge Current:
|
6,500
amps (8 x 20 ms pulse) |
Maximum
Spike Energy:
|
80
joules per node; 240 joules total |
Noise
Attenuation:
|
Differential
mode: Greater than 40 dB.
Transverse and common modes: Greater than 60 dB, 1-200 MHz.
|
Dimensions:
|
1.75"
H x 19" W x 8" D (4.5 x 48.3 x 20.5 cm) |
Weight:
|
12
lbs. (5 kg) |
|