HP 3457A - Page 12

3457A
General
Information
Table 1-1. Specifications
DC VOLTS (Cont’d)
MAXIMUM READING RATES: (Readings/Second)
INTEGRATION | DIGITS READING RATE
TIME DISPLAYED |60 HZ |50 Hz
0.0005 PLC 31/2 1350 1350
0.005 PLC 4 1/2 1250 1250
0.1 PLC 5 1/2 360 312
1 PLC 6 1/2 53 45
10 PLC 6 1/2 4.8 4.0
100 PLC 6 1/2 48 -40
Reading
Rates
apply
with
the
keyboard
lock
ON,
Auto-Zero
OFF,
Display
OFF,
Math
Func-
tion
OFF,
Delay
Time
set
to
0.0,
Manual
ranging,
readings
stored
in
internal
memory
using
Timer
Trigger
and
single
precision
integer
format.
DC CURRENT
INPUT CHARACTERISTICS:
MAXIMUM
RESOLUTION
SHUNT
READING
RESISTANCE
RANGE
|6
1/2
digits|6
1/2
digits|5
1/2
digits|4
1/2
digits|3
1/2
digits
300
uA|
303.0000
uA
100
pA
1
mA
10
nA
100
nA
Ohm
3
mA}
3.030000
ma
1
nA
10
nA
100
nA
1
uA
Ohm
30
mA}
30.30000
mA
10
nA
100
nA
1
uA
10
uA
10
Ohm
mA]
303.0000
mA
nA
1
uA
10
uA
100
uA
1
Ohm
A
1.000000
A uA
10
uA
100
uA
1
mA
«1
Ohm
MAXIMUM
BURDEN
VOLTAGE:
0.35V
-
300UA,
3mA and
30mA
ranges.
0.6V
-
300mA
range.
1
V
-
1A
range.
MEASUREMENT ACCURACY: +(% of reading + Number of Counts)
After 1 hour warmup, with Auto-zero ON.
24
HouR:
Tcal
+
1°C
After
two
hour
warm-up.
Accuracy
relative
to
calibration
standard.
RANGE
|
%
READING
NUMBER
OF
COUNTS
100
PLC*
10
PLC*
1
PLC*
«1
PLC*
-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
54 54 65 9
54 54 65 9
54 54 65
154
504
155