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Display AC Voltage
and AC Setting
Indicates both the AC
voltage setting of the
amplifier as well as the
AC line voltage input to
the amplifier.
This
function
accessible
either
Standby
mode
operating mode.
Temp
Displays the temperature
of the rear heatsink,
either in degrees Celsius
or Fahrenheit.
This button has a dual
function. When used
alone, this button is a
temperature
button.
When
used
simultaneously
with
some
of
the
other
buttons, it acts as a reset
button.
(See
Fault
section in this chapter.)
S-400 Amplifier Owner's Manual
VTL
RS-232 command:
>TUBETIME CLEAR
In Standby mode, pressing the
AC Voltage button displays the
AC voltage setting of the
amplifier (as preset by the
factory) in the Display Window.
RS-232 command: >ACINPUT
SET
is
Holding this button for more
in
than 5 seconds displays the AC
or
line voltage input to the amplifier.
RS-232 command: >ACINPUT
READ
In operate mode, pressing the AC
Voltage button displays the AC
line voltage input to the amplifier.
This function is accessible
either in Standby mode or
operating mode.
RS-232
commands:
Fahrenheit: >READTEMP F
Degrees Celsius:
>READTEMP C
Note: The amplifier continuously
monitors AC conditions, and shuts
down automatically under adverse
conditions. (See fault indications
later in this chapter.)
Degrees
When the user presses this button,
the LED above the button will be
lit and the Display Window will
display the amplifier temperature
at the Power supply heat sink.
The default temperature displayed
is in Fahrenheit. To display the
temperature in Celsium, hold
down the button for more than 10
seconds.
Note: The amplifier automatically
shuts down if the rear heat sink
temperature reaches 60 degrees C,
and when the temperature cools to 55
degrees C, the amplifier can be
35
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