Furman PRESTIGE Série Guide De L'utilisateur page 6

P-6900 AR E OWNER'S MANUAL
8. Your P-6900 AR E should be serviced by qualified service personnel when:
• The power supply cord or the plug has been frayed, kinked, or cut.
• Objects have fallen or liquid has spilled into the unit.
• The unit has been exposed to rain or extreme moisture.
• The unit does not appear to operate normally.
• The "Protection OK" indicator is not lit.
• The unit has been dropped, or the enclosure has been damaged.
9. Connecting your P-6900 AR E to a grounded AC service outlet is highly recommended. Though not necessary for the product to
function, It will help to avoid any possibility of electrical shock if connected equipment fails for any reason.
10. Do not attempt to service your P-6900 AR E beyond what is described in this manual. All other servicing should be referred to
qualified service personnel.
INSTALLATION
Because of the toroidal transformer design, the Furman P-6900 AR E may be positioned near most other equipment without fear
that the other equipment will be disrupted by leakage of a strong 50/60 Hz magnetic field (50Hz is recommended for best operation).
Nevertheless, suggested rack locations would be either at the top or bottom.
As with any rackmount equipment, be sure to use 10-32 machine screws for mounting in the rack's tapped holes (this is not a metric
size). In particular, beware of 10-24 screws, which may fit if forced but which will strip the threads. To avoid marring the front panel
finish, use plastic washers under the screw heads.
Rear Rack Mounting:
If you are installing the P-6900 AR E in a rack that has rear as well as front mounting rails, you may easily secure it to the rear of
your rack. Simply remove the securing screws from the side and front portions of the P-6900 AR E's adjustable rear rack ear and
reinforcement side plate (located on either chassis side), reverse it and re-attach to the P-6900 AR E chassis. (See Figure 1.a, page 10)
OPERATION
Voltage Selection Switch:
The voltage selection switch is only read by the regulator during power up. Once the regulator is active, this switch has no effect on
the output voltage. If the user desires to change the output voltage, adjust the switch to the desired setting and cycle power to the
regulator.
Dimmable/Switchable Digital Voltage and True RMS Current Meter:
Furman's laboratory precision AC digital voltmeter continually measures incoming voltages within a typical tolerance of +/-2.0VAC. It
should be noted that the voltage reading is determined by the incoming AC source.
The Furman true RMS current meter constantly measures the total circuit AC load, with a typical tolerance of +/-0.5 amp. Because the
meter features True RMS technology, the current readings are accurate regardless of load conditions (capacitive, inductive, or resis-
tive).
To switch between voltage and current, press the button labeled "Line Voltage/Current". To change the display intensity, hold this but-
ton down for two seconds to cycle through the 3 stages of brightness.
Voltage Range Indicator:
This tri-color Voltage Range indicator is located in the lower left corner of the digital voltage meter lens assembly. When the incoming
AC voltage is within a capture range of 180-260V (230V output setting – 190-270 @ 240V output setting) the tri-color indicator will be
green (optimal), indicating the unit is in regulation. However, if the regulator encounters a temporary transient condition the indicator
will turn amber (caution). This amber indication appears when there are excessive changes or sudden swings at the input (+/-20 volts).
If the incoming voltage is beyond the P-6900 AR E capture range (see above), the indicator will turn red. Red warnings indicate the
incoming voltage is far from optimal and beyond the capture range offering a constant 230V (or 240V switchable). In this condition,
the P-6900 AR E will continue to regulate from the last tap of the autoformer, providing an output voltage as close to 230V (or 240V) as
possible (e.g. an input voltage of 180V would equate to 221V at output – in the 230V switched output setting). When employing the
P-6900 AR E in mission critical applications where 230V is the primary concern, the red indication is invaluable.
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