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1
O'l
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Il'l'll-
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Description
OUTPUT ADJUST Controls
OUTPUT ADJUST knob
is a two- speed rotary pulse
generator (RPG); faster rotation
causes greater rate of
change per rotation.
OUTPUT ADJUST knob functions as
either a voltage control or a
current control, as determined
by the pushbutton switch and
indicated by whichever indicator,
VOLTAGE or CURRENT, is on.
OUTPUT ADJUST controls
function only when the power supply
is under local control. Pushbutton switch is
also used to enter and exit test mode;
see Section V.
OVP Controls
The recessed ADJUST control sets
overvoltage protection trip voltage.
DISPLAY pushbutton switch causes
voltmeter to display the operating
OVP trip voltage (lower of
OVP trip voltage set locally by
ADJUST or OVP trip voltage
determined by remotely sent
soft voltage limit). When DISPLAY
is pushed in, OVP SET light to
the right, of voltmeter indicates that
voltmeter is displaying OVP trip voltage.
L.CL Pushbutton Switch
LCL returns power supply to
local control (unless local lockout
command has been received via
HP-IB).
SELF TEST Indicator
Indicates that unit is in self test
(always performed at turn on) or in
user-selected test mode.
Meters
Indicate output VOLTS and AMPS. 3fc
digit voltmeter has two ranges, 20.00 V
and 200.0 V, with automatically positioned
decimal point. OVP SET light to right
of voltmeter indicates that voltmeter
is displaying OVP trip voltage (200.0 V
range). 3Mt digit ammeter has one range,
20.00 A.
LINE Switch
Turns ac input power on and off.
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