Holster And Flex-Stand; Applications; Measuring Voltage (Ac/Dc); Measuring Current - Fluke 8010A User Manual

Holster
and
Flex-Stand
The
meter
comes
with
a snap-on
holster that
absorbs shocks
and
protects the
meter from rough
handling.
The
holster
is
equipped
with
a
Flex-Stand.
Some
uses
of
the holster with
Flex-Stand are
shown
in
Figure
3.
APPLICATIONS
This section
discusses
some common
applications for
your
meter,
and
alerts
you
to
some
considerations
to
keep
in
mind
when
taking
measurements.
Measuring
Voltage
(AC/DC)
To measure
voltage,
connect
the
meter
in
parallel
with the load
or
circuit
under
test.
Each
of
the
five
ac/dc voltage ranges
presents
an
input
impedance
of
approximately 10 Mfi
in
paral-
lel
with less
than 100 p F.Ac
voltage
isac-coupled
to
the 10 Mfi
input.
To improve the accuracy
of
dc
voltage
measurements
made
in
the
presence
of
ac
voltages,
measure
the
ac
voltage
first.
Note
the
ac
voltage
range and manually
select
a
dc
voltage
range
that
is
the
same
or higher than the
ac voltage range. This
method improves
the
dc
voltage
accuracy by
ensuring that the
APPLICATIONS
Measuring
Voltage
(AC/ DC)
input protection
circuits are not being
activated.
A
typical
application
is
measuring
the
dc
offset
voltage
of
an
amplifier
in
the presence
of
an ac
signal.
Measurement
errors
due
to circuit
loading can
result
when
making
either
ac
or
dc
voltage measurements on
circuits with
high
source impedance.
In
most
cases, the error
is
negligible
(0.1% or
less)
if
the measurement
circuit
source impedance
is
10 kilohms
or
less.
Measuring
Current
WARNING
DO NOT
ATTEMPT AN
IN-CIRCUIT
CURRENT
MEASUREMENT WHERE
THE POTENTIAL
IS
GREATER THAN
600V.
YOU
MAY DAMAGE
THE
METER OR
BE INJURED
IF
THE FUSE BLOWS
WHILE
CURRENT
IS
BEING
MEASURED
IN
A
CIRCUIT WHICH
EXHIBITS
AN OPEN
CIRCUIT
VOLTAGE GREATER THAN
600V.
To measure
current,
connect
the meter
in
series with the load
or
circuit
under
test.
Press
the
BLUE
button
to toggle
between
alternating
and
direct current.
17