Tektronix 475A - Dm44 Displays and Measurements; Resistance

DM44
DISPLAYS
AND
MEASUREMENTS
Except
for
the
TIME
and
1/TIME
functions,
the
DM44
is
independently
usable
anytime
the
oscilloscope
is
turned
on.
The
TIME
and
1/TIME
functions
are
discussed
in
the
Oscilloscope
Applications
and
Measurements
section
of
this
manual
under
Delayed
or
Mixed
Sweep
Measurements.
RESISTANCE TABLE 2
Resistance Ranges
tt rrr A
MEASUREMENT
20.00—02.00 | 20M0—2 MQ
TO NN,
CAUTION N RANGE
LON LON MO LOS MO
The meter may be damaged by attempting to — ZM 2.000—0.200 _ 2 MQ—200
measure
voltage
if
the
meter
is
in
the
resistance
200
kQ
J
200.0—
20.00
„200
kQ--20
KA.
Q
mode of operation (OHMS FUNCTION button push- = 20.00— 10-—02.00 20 K0--2 KA
ed in) and the applied voltage is in excess of 120 V 2.000—0.200 2 kQ—200 Q
rms. m | 200.0—000.0 | 2000—00 ~
f. Push in the OHMS FUNCTION button and the
20 MQ RANGE button. See Fig. 8. A blinking readout on any range, when connected to
any unknown resistance, indicates an overrange condi-
2.
Connect
the
+
and
COM
leads
to
the
unknown
Hon
and
a
need
to
select
a
higher
range.
resistance.
3. Reduce the range, using the following tabie, until å A blinking reådout, when meter leads are disconnected
proper readout is obtained. is normal.
20
475A/DM44
Operators
|
©