Tektronix PS 503A, Инструкция по эксплуатации

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Operating Instructions—PS 503A
VOLTS DUAL
TRACKING Control
VOLT:
CURRENT LIMIT
VOLTS Controls
and Indicators
Variable coarse and fine
controls provide con­
tinuously variable + or —
voltage selection from the
respective 0-20 volt
supply. The presence and
variability of output
voltage is verified by
voltage indicator lights
(OUTPUT button
pressed). Brightness of
lights varies with output
voltage.
400 mA LIMIT Indicator
Light emitting diode in­
dicates when PS 503A Is
installed in a standard
compartment of a power
module, limiting the
current output.
Floating Output
Terminals
5-way binding post ter­
minals that provide either
a
positive 0-20 volts
between the binding post
on the right (red) and
COMMON, or a negative
0-20 volts between the
binding post on the left
(green) and COMMON.
When the PS 503A is in­
stalled in the high power
compartment of
a TM 504
or TM 506 power module
that
has a high power
compartment, the current
available at either the +or
— outputs is from less
than 100 mA to at least
1 A. When the PS 503A Is
installed in a standard
compartment, the current
available is
from less than
100 mA to at least
400 mA. 0 to 40 volt out­
put is obtained between
the + and — output ter­
minals.
+5 Ground-Referenced
Output Terminals
5-way binding-post termi­
nals that provide a
ground-referenced +5 V,
1 A, fixed output.
VOLTS
DUAL TRACKING
(PULL)
When pulled out, varies
both the + and — outputs
from 0 volts to the value
set on the + and — VOLTS
controls. The ratio be­
tween the + and - outputs
is maintained throughout
the range of the VOLTS
DUAL TRACKING con­
trol.
OUTPUT Pushbutton
When pressed, applies
power to both
0-20V
binding post terminals
and the +5V binding post
terminal.
CURRENT LIMIT
Controls and Indicators
Continuously variable
controls that select the +
and — output current limit.
Light-emitting diode in­
dicates when hard
limiting
occurs.
1834’ 05
REV. B MAR 1977
Fig. 1-3. PS 503A controls and connectors.