Fluke 8010A User Manual

OPERATION
APPLICATIONS
DIODE
TEST (kO,
1. DE-ENERGIZE
CIRCUIT
TO
BE MEASURED
2.
SELECT
Range
{2
-4- range preferred)
3.
SELECT FUNCTION
:
4.
CONNECT TEST LEADS
HIGH (+)
LOW
(-}
,
FORWARD
BIAS:
I-
Figure
2-9,
Diode
Test
Operation
2-43.
Burden
Voltage Error (Current)
2-44.
When a
multimeter is
placed
in series with
a circuit
to
measure
current,
the
voltage
drop of
the
multimeter
induces an error.
This voltage is
called the burden
voltage.
The maximum
full-scale burden voltages
for
your
Multimeter are 0.3
V
for
the
four
lowest ranges
and 0.9V
for the
highest
range.
2-45.
These
voltage drops can
affect the accuracy
of the
current
measurement
if
the current source is unregulated
and the resistance of
the
shunt and fuses
of
the
multimeter
exceeds
1 /
1000
of the
source resistance.
If
the
multimeter
burden voltage is
significant, the formula in Figure
2-11
can
be
used
to calculate
the
burden voltage error.
2-46.
Test Lead
Compensation (Resistance)
2-47.
When
measuring
low
resistances,
the
effects
of test
lead
resistance may
add a significant error.
This error
is
compensated
for by measuring the lead
resistance and
subtracting it
from
the resistance measured in the circuit.
The
test
lead
resistance
of
the
8010A
must
be
subtracted
manually, by
the
operator, to compensate for this error.
The 8012A
provides a ZERO function, for
Low
Ohms
resistance
measurements,
that “zeros out” the value of the
test
lead
resistance.
Figure
2-7
and
the paragraphs on
Low
Ohms
Resistance describe how to use the ZERO
function
of
the 8012A.
2-48. Use the following procedure, to manually
compensate
for test lead resistance:
1. Setup
the Multimeter
as shown in
Figure
2-6.
Short
the
test
leads together
(press
the
test
leads
together firmly).
2-9

Fluke 8010A Specifications

General

Brand	Fluke
Model	8010A
Category	Multimeter
Language	English