Input - Fluke 893A Instruction Manual

50
kHz
to
100
kHz
0. 1
to
110 volts ac
±0.
5%
of
input
1-8.
GENERAL
SPECIFICATIONS
INPUT
AND NULL VOLTAGE
RANGES
ELECTRICAL
SPECIFICATIONS
Completely
solid-state
INPUT
RANGES
1
10
100
1000
DC NULL RANGES
0
.
001
,
0
.
01
,
0
.
1
0
.
001
,
0
.
01
,
0
.
1
,
1.0
0
.
01
,
0
.
1
,
1
.
0
,
10
0
.
1
,
1
.
0
,
10
,
100
INPUT
RANGES
1
10
100
1000
AC NULL RANGES
0.001,
0. 01^ 0.
0.01, 0.1,
1.0
0. i, 1.0,
10
1.0,
10,
100
DC
INPUT RESISTANCE
Infinite at
null
from
0 to
1100
volts dc.
AC INPUT
IMPEDANCE
One
megohm
shunted by
less
than 20
pf
on
all
ranges.
OVERRANGE
10% overrange
capability on
each
range.
METER
RESOLUTION
10
microvolts
maximum
resolution.
1
ppm
of
range
for dc
ranges above one
volt.
10
ppm
on
the
one
volt dc
range and
all
ac
ranges.
READOUT
DIAL RESOLUTION
10
microvolts
maximum
(10
ppm
of
range).
1-7.
CONVENTIONAL VOLTMETER
(TVM)
DC
VOLTMETER ACCURACY
±3%
of
range.
INPUT RESISTANCE OF NULL DETECTOR
10
megohms
on
the
0.
01 and
0,
001
volt
ranges and
100
megohms
on
all
other ranges.
REFERENCE ELEMENT
Temperature compensated
zener
diodes.
REGULATION
OF
REFERENCE SUPPLY
0.
0005%
for a
10%
line
change.
REFERENCE VOLTAGE
STABILITY
(Peak-to-Peak)
10
ppm
per hour
20
ppm
per day
40
ppm
per
month
90
ppm
per year
KELVIN-
VARLEY
DIVIDER
ACCURACY
±0.
005%
of
readout dial setting above l/lO
of
full-scale.
RECORDER OUTPUT
Available as
the
-02
option, adjustable
from
0 to
±0.2
volts
for
an end-scale meter
deflection.
Low
side
grounded and
loading does not effect
deflection
accuracy.
POLARITY
Reversible with
front
panel
control.
WARM-UP
TIME
Less
than one minute.
DC
COMMON MODE
REJECTION
120 db
(1
uv/volt
of
common
mode
voltage) for
maximum
of
±500
volts.
AC
VOLTMETER
ACCURACY
5
Hz
to
20 kHz
O.OOl
to
1100 volts ac
±3%
of
input
20
kHz
to
100
kHz
0,
001
to
110
volt
ac
±3%
of
input
DC
INPUT RESISTANCE
RANGE
INPUT RESISTANCE
-
Megohms
1000 100
100 100
10
100
1
100
0
.
1 -
0
-
0.
100
*
0
.
01
-
0
-
0
.
01
10
* 0
.
001
-
0
-
0
.
001
10
These
ranges obtained using
null
ranges with Readout
dials set to zero.
AC INPUT
IMPEDANCE
One
megohm
shunted by
less
than 20
pf
on
all
ranges.
OVERRANGE
10% overrange
capability on
each
range.
1-2
AC
COMMON MODE
REJECTION
Up
to 100
volt
peak-to-peak, 50
to
500
Hz
signal,
pro-
duces
no measurable instrument error
for dc
measure-
ments.
INPUT
POWER
115/230
volts ac,
50
to
500 Hz,
at
approximately
four
watts
for line
operation and approximately
eight watts
when recharging
batteries on
the
-01
option equipped
instruments.
Minimum
of
eight
hours operation on
fully
charged
batteries
of
the
-01
option equipped
instru-
ments.
1-9.
ENVIRONMENTAL
SPECIFICATIONS
OPERATING
TEMPERATURE
RANGE
Within
dc
accuracy
specifications
from
10° C
to 40°
C
(50°F
to
104°F), derated
at 15
ppm/°C
outside these
limits to 0°C and 50°C
(32°F and
122°F).
Within ac accuracy
specifications
from
10°
C to 40°
C
(50°F
to 104°
F),
derated
at 40
ppm/°C
outside these
limits to
0°C and 50°C
(32°F
and
122°F).
HUMIDITY
Within
all
specifications up
to
80% relative humidity be-
low
25° C.
6/16/72
893A