Introduction; Specifications; High Frequency Probe; High Frequency Probe (85Rf) - Fluke 8021B Instruction Manual

8021
ACCURACY DC (OVERALL)
... 20
kV
to 30
kV
±2%
(calibrated at
25 kV)
UPPER LIMIT
Changes
linearly
from
2%
at
30
kV
to
4%
at
40
kV
LOWER
LIMIT
Changes
linearly
from
2%
at
20
kV
to
4%
at
1
kV
ACCURACY AC (OVERALL)
.
. .
±5%
at
60
Hz
6-21.
HIGH
FREQUENCY PROBE
(83RF)
6-22.
Introduction
6-23.
The83RF
Probe extends
the
frequency range of the
DM
M's
voltage
measurement
capability to
include 100
kHz
to
100
MHz
inputs
from 0.25 to 30
V
rms.The probe
operates
in
conjunction with
the
instrument's dc voltage
ranges,
and
provides a
dc output
that
is
calibrated to
be equivalent
to
the
rms value of a
sinewave
input.
8-24.
Specifications
FREQUENCY RESPONSE ±i dBfrom iOOkHzto
i
00
MHz
(relative
toac/dc
transfer ratio)
AC-TO-DC
TRANSFER RATIO RMS
Input
DC
Output
(23
±5°C)
(100
kHz)
0.25
-0.5V
0.25
-0.5V
±1.5
dB
0.5 -
2.0V 0.5 -
2.0V ±0.5
dB
2.0
-30V
2.0
-30V
±1.0
dB
EXTENDED FREQUENCY
RESPONSE
Useful for relative
readings
from 20
kHz
to
250
MHz.
RESPONSE
Responds
to
peak value of
input; calibrated to
read
the
rms
value of
a sine
wave.
VOLTAGE
RANGE
0.25
to
30V
dc
MAXIMUM
DC INPUT
200V
dc
TEMPER ATU RE CO
EFFI
Cl
ENT
(0
to
18°C, 28
to
50° F)
±0.1 of ac-to-dc transfer
ratio
specifications per
°C
INPUT
CAPACITANCE
<5 pF
6-25.
HIGH
FREQUENCY PROBE
(85RF)
8-26. Introduction
6-27.
The Model
85RF
High Frequency Probe allows
measurements
over a
frequency
range of 100
kHz
to
500
MHz
from .25V
to
30V rms.
It
operates
in
conjunction with the
DM
M's dc voltage
ranges,
and
provides a
dc output
that
is
calibrated to
be equivalent
to
the
rms value of
a
sinewave input.
6-28.
Specifications
FREQUENCY RESPONSE
100
kHz
to 100
MHz
±0.5
dB
100
MHz
to
200
MHz
±1.0
dB
200
MHz
to
500
MHz
±3.0
dB
EXTENDED FREQUENCY
RESPONSE
Useful for relative
readings from 20 kHz.
to
700
MHz.
RESPONSE
Responds
to
peak
value of input; calibrated to
read
rms
value of a sine
wave.
6-5