Specifications; Operating - Fluke 731B Instruction Manual

731B
1-7.
SPECIFICATIONS
Output
Voltage
Range
10.0
1.0
1.018
+AE
1.019
+AE
AE
Output
10.0V dc
1
.OV dc
1.018
to
1.018999V
dc
1.019
to
1.019999V
dc
0
to
999
liV
dc with
1
juV resolution
Output
Accuracy: Absolute accuracy
at
23°C +1°C
after
30
minute
warm-up
Range
Period
10V
IV
1
.01
8+ -Ae
Ae
30 days 90 Days
1
Year
+ 10
PPM
+
10
PPM
+ 10
PPM
+
15
PPM
+ 15
PPM
+ 15
PPM
+ 30
PPM
+ 30
PPM
+30
PPM
+ 2
uV
Transfer Accuracy: 4
Hr
Between
standard
cells
on 1.018V
+
2
ppm
AE
or
1.019V +
AE
ranges:
Between
standard
cell
and
IV
3
ppm
output:
Between 10V output and standard
5
ppm
ceil
or
IV
output:
Temperature
Coefficient:
Less than
1
PP^/i/C^
10°Cto45°C
Less than 2
PPM/c",
0''C
to
lO^C and 45°C
to
55°C
Output
Current:
IV, 1.018V,
1.019V
Ranges:
The Reference
Transfer
Standard
is
designed
to per-
form
as a
standard
cel!
and therefore
is
intended to
operate into a high
impedance on
the IV,
1.018V and
1.019V ranges drawing minute
currents.
This impe-
dance
is
usually
infinity as in
potentiometric
circuits,
or, in
other
applications should be
at least
100 Meg-
ohms
to prevent source
loading.
Source Resistance:
10V Range <0.0717
IV,
1.018V. 1.019V,
AE
Ranges:
<
1
kS7
Output
Protection:
The output
may
be shorted indefinitely
without
damage
to instrument.
Line Regulation:
Less
than
1
PPM
for
+10%
line variation.
Ripple
&
Noise:
Less than
1
PPM
P-P dc
to
1
Hz
Less than 20 juV
RMS
1
Hz
to
1
MHz
Except
<70
juV
RMS @
10V
output
Common
Mode
Rejection:
120
db
at
DC
100
dbateO
Hz
85 db
at
400 Hz
Isolation:
Output
may
be
floated
up
to
500
VDC
between
chassis
ground and
guard.
Calibration
Adjustment:
10 Volt Range:
The
10 volt range
is
used
in
applications
where some
degree
of
loading
is
placed on
the
Reference Transfer
Standard such
as a
Kelvin Varley Divider or other
re-
sistance networks.
Loading
Effect
on
the
10V
Range
Load
R.
Output Change (PPM)
100 M12
0
10 M17
0.005 «=0
1
M17
.05
0.1
M17
.5
10
KQ
5
Separate
internal
adjustments
for the 5
output
vol-
tages.
Front
panel
adjustment
common
to
ail
voltages
including the 10.000V
output.
Basic reference adjust-
ments
accessible
from
the front panel.
Temperature/Humidity:
+0°C
to
+55°C
operating.
—
40'^C to
+60°C
non-operating.
Up
to
70%
RH
for
temperatures
<35°C
Shock
&
Vibration:
Meets requirements
of
MIL-T-21200L
1-2