IT-Reference 7 - Owner’s Manual
- 6 -
outlets. 5 mA of current is enough to cause the
GFCI to trip; to troubleshoot this type of problem,
start with nothing connected to the IT-Reference
7’s balanced power outlets. Then, add each
piece of equipment until the GFCI trips. Contact
the manufacturer of the suspect unit for possible
solutions.
I
n d I c at o r
l e d
s
e
xtreme
V
oltage
s
hutdoWn
I
ndIcator
:
This LED is normally off. It monitors AC wiring
faults – for example, accidental connection to
an open neutral from a 08 or 0VAC feed (this
is a common occurrence if the AC outlet source
is not a dedicated line, but instead has been
wired with a daisy-chained neutral from a homes
breaker box). The Series Multi-stage Protection
(SMP) circuit senses voltages that are so high
that operation would be impossible and shuts
the power down before damage can occur.
Upon initially applying power to these units,
the Extreme Voltage indicator LED will light if
the input voltage is above the extreme voltage
cutoff, and power will not be applied to the unit’s
outlets. If the unit has been operating with an
acceptable input voltage and subsequently that
voltage exceeds 137V, it will shut off power to
the outlet and the Extreme Voltage LED will
light.
P
rotectIon
ok I
ndIcator
– F
ront
P
anel
b
lue
led P
oWer
I
ndIcator
Although the Furman SMP circuit assures
virtually maintenance free protection from
transient voltage spikes and surges, nature
has a way of occasionally creating electrical
forces that are beyond the capabilities of any
Transient Voltage Surge Suppression device
to absorb without some degree of damage. In
the rare instance that this occurs, the blue LED
located in the center of the front panel will dim,
even though AC power is present at the unit’s
outputs. If this happens, some level of protection
from voltage surges will remain, but the unit’s
clamping voltage rating will be compromised.
The unit must be returned to Furman Sound,
or an authorized Furman’s Service center for
repair.
d
ImmIng
the
P
rotectIon
ok F
ront
P
anel
I
ndIcator
Some installations will require placement of
this power conditioner within sight of your video
screen. When the rooms lights are fully dimmed
for video viewing this can be an annoyance, so
we have included a dim switch on the rear of the
unit. This will not disable the indicator; it simply
reduces its brightness.
NOTE: If the mains power is above the high cutoff
voltage and has caused the unit to remove power
from its outlets, it cannot restore power without the
operator manually turning the unit off, then on again.
Avoid turning the unit back on without first checking
the source of the problem and changing the AC
source if necessary.
s
at e l l I t e
– c
a b l e
t
r a n s I e n t
V
o lta g e
s
u r g e
s
u P P r e s s o r s
The IT- Reference 7 features transient voltage
surge suppression for both cable and satellite
lines utilizing standard coaxial connectors. As
these surge suppressors are in-line, they will
require an additional cable to connect from
their output to the control device requiring
protection.
All in-line surge suppressors feature our
exclusive ground-contamination-free technology.
This aids in eliminating audio buzzing, and the
video hum-bars that can result from typical in-
Summary of Contents for IT-Reference 7
Page 1: ......
