Fluke 8021B - Introduction; Battery Eliminator; (A81); Current Shunt (80 J-10)

8021
B
VOLTAGE
RANGE
0.25V dc
to 30V
rms
MAXIMUM
DC
INPUT
200V
dc
INPUT
CAPACITANCE
<5
pF
AC-TO-DC
TRANSFER RATIO
. 1:1
RATIO
ACCURACY
0.5 dB
at 10
MHz
5-
29.
BATTERY
ELIMINATOR
(A81)
6-
30.
The
A8 1
Battery
Eliminator converts
the 802
1 B from battery
to
ac-Iine operation.
It
is
available
in
a
variety
of line-power
configurations,
as shown
in Table
6-1.
When
connected
to the
8021 B it effectively
removes
and replaces
the output
of the
8021 B battery.
The
battery
does not
need to be removed
from the
circuit.
WARNING
DO
NOT
SUBSTITUTE
A CALCULATOR
TYPE BATTERY
ELIMINATOR
FOR
THE A81. THESE UNITS
DO NOT
PROVIDE
THE
PROTECTION
NECESSARY
FOR COMMON
MODE MEASUREMENTS
UP
TO
500V DC.
ALWAYS
USE THE MODEL
A81 FOR AC-LINE
OPERATION.
NOTE
The
“
BT’ indicator
may come on when
using
the A81. This
does not
affect
the
operation
of
the 8021 B.
6-31.
CURRENT SHUNT
(80J-10)
6-32.
Introduction
6-33.
The Model 803-10
Current Shunt
extends the
current measuring
capability of
the
DMM
to
10
amps
continuous
(20 amps for
periods not exceeding
one minute)
dc to 10
kHz
at
an accuracy
of
±0.25% in excess of
the voltmeter
accuracy.
Table
6-1.
A81 Model
vs
Input
Power
A81-100
100V ac
±10%,
48 to
62 Hz
A81-1
15
115V ac
±10%, 48 to
62 Hz
A81 -230-1
230V ac
±10%, 48
to
62
Hz
(U.S.
type
plug)
6-6