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the Resistance
Using
Ranges
the exception
With
the 200
of
power',
they generate voltage across the
'high
ie
of
scale
—20mV
1%
full
reading.
per
semiconductor junction,
across
a
the
and
cause
an error
if
reading
select the
this, either
next range, or reverse
9
the
20M
(On
range instability of reading may result from noise
pick-up across the
impedance.
high
twist
leads
together).
or
Testing of Semiconductor Junctions
2K9 resistance
The
acts
effectively as
range
the
socket
source
with
common
semiconductor junction such that
ing
a
the
meter will read
approximate forward voltage drop
the junction
connected
When
is
saturate
to its maximum
source
will
meter will read overrange.
further indication of
A
the junction
can be obtained by selecting
obtained.
until
ranges
reading
is
a
then
reverse leakage current can
the
excitation current for
range
page
9.
the resistance ranges
Q
range,
resistor at
the
resistor
is in
place
If
this
junction
could forward bias
above
is
10% of range.
avoid
To
the
leads.
short
To avoid this, use
leads,
constant
mA
current
a
1
as positive terminal.
connect-
By
forward biased,
it is
volts.
in
reversed bias
mode,the
in
current
circuit voltage, and
open
the
condition of
resistance
higher
The appropriate low voltage
determined
be
to the
by referring
the specification
quoted
in
are
the
the
on
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