Tektronix 475A - Display; Dm44

DISPLAY
11. Internal Graticule—Eliminates parallax. Risetime,
amplitude and measurement points are indicated at the
left-hand graticule edge.
12. BEAM FINDER—Compresses the display to within
the graticule area independently of display position or
applied signals and provides a visible viewing level.
13. INTENSITY—Controls brightness of the crt dis-
play.
14. FOCUS— Adjusts for optimum display definition.
15. SCALE ILLUM—Controls graticule illumination.
16.
ASTIG—Used
in
conjunction
with
the
FOCUS
control
to
obtain
a
well-defined
display.
It
does
not
require
readjustment in normal use.
17. TRACE ROTATION—Adjusts trace to align with
the horizontal graticule lines.
DM44
18.
Input
Connectors—Two
banana
jacks
provide
+
(red)
and
COM
(black)
inputs
for
voltage
and
resistance
oniv.
19. Probe Connector—input connector for the
temperature probe.
20. Readout—Negative polaritv indication is
automatic
for
negative
dc
voltage
and
temperature
witħ
no
polaritv indication for positive measurement. A blinking
display indicates overrange. The decimal point is position-
ed by the FUNCTION and RANGE controls for multimeter
operation and by the oscilloscope A TIME/DIV switch in
the TIME or 1/TIME modes.
21. RANGE—Selects from .2 V to 1.2 kV dc in 5 ranges
(1200
volts
is
the
maximum
safe
input
in
the
1.2
kV
dc
mode); from 200 ohms to 20 megohms in 6 ranges.
22. FUNCTION—Selects VOLTS, OHMS, TEMP (°C),
1/TIME, or TIME functions of the DM44.
23. Scale Factor Lamps—Two lamps.
In the TIME function, the Readout and Scale Factor
Lamps
indicate
the
time
difference
between
the
two
intensified zones on the crt display. One lamp or the other
will
light
to
indicate
ms
or
us.
No
lamp
lit
indicates
seconds.
In the 1/TIME function the Readout and Scale Factor
Lamps
indicate
the
number
of
measured
intervals
per
unit
of time. One lamp or the other will light to indicate intervals
per ms (1/ms lamp) or intervals per us (1/us lamp). No
@
475A/DM44
Operators
7