HP 3457A - Page 10

3457A
General
Information
Table
1-1.
Specifications
DC
VOLTS
INPUT
CHARACTERISTICS:
MAXIMUM
RESOLUTION
READING
RANGE |6 1/2 digits|6 1/2 digits|5 1/2 digits|4 1/2 digits|3 1/2 digits
30
mv
|
30.30000
10
nv
100
nv
1
uv
10
uv
300
mv}
303.0000
100
nv
1
uv
10
uv
100
uv
3
Vv
3.030000
1
uv
10
uv
100
uv
1
mv
30
Vv
30.30000
10
uv
100
uv
1
mv
10
mv
300
Vv
303.0000
100
uv
1
mv
10
mv
100
mv
INPUT RESISTANCE (OHMS):
30 millivolt through 3 volt range - 10 gigaohms
30 volt and 300 volt range - 10 megohms (+/- 1%)
MAXIMUM INPUT VOLTAGE: (non-destructive)
HI or LO to Earth Ground: + 450V peak
MEASUREMENT ACCURACY: +(% of reading + Number of Counts)
Auto-Zero ON
24
HOUR:
Tcal
+
1°C
2
hour
warm-up
Accuracy
relative
to
calibration
standard
24
hour
specifications
apply
if
the
instrument
is
calibrated
between
90
and
100%
of
full-scale.
For
calibration
between
33
and
90%
of
full-scale,
add
.00015%
to
%
Reading.
% READING NUMBER OF COUNTS
100
PLC*
10
PLC*
1
PLC*
+1
PLe*
+005
PLC*
+0005
PLC*
6
1/2
digits|6
1/2
digits|6
1/2
digits|5
1/2
digits|4
1/2
digits|3
1/2
digits
215 235 350
24 25 35
5 6 6
10 20
6 6
90 DAY: Tcal + 5°C After 1 hour warm-up
RANGE
|
%
READING
NUMBER
OF
COUNTS
100
PLC*
10
PLC*
1
PLC*
+1
PLO*
+005
PLC*
+0005
PLC*
6
1/2
digits|6
1/2
digits|6
1/2
digits]5
1/2
digits|4
1/2
digits|3
1/2
digits
365 385 500
39 40 50
6 Ka 7
41% 20 30
6 c4 Kg