HP 3457A Service Manual page 26

3457A
Table 1-1. Specifications
TRUE RMS AC CURRENT (Cont'd)
24 HOUR: Teal +
1 A range. (1 amp maximum input)
FREQUENCY PERCENT
OF
READING
>= 1 PLC
6 1/2 digits
NUMBER O}
0.1 PLC
5 1/2 digits
F COUNTS
-005 PLC
4 1/2 digits
General Information
1°C (ACDCI Function) After 2 hour warm-up Accuracy relative to calibration std
-0005 PLC
3 1/2 digits
1.6
0.45
0.35
0.7
16000
16000
16000
16000
20Hz
46Hz
1VO1HZ
** 400HZ
90 DAY: Tcal +
30 mA and 300 mA ranges.
* PERCENT
OF
READING
FREQUENCY
>= 1 PLC
6 1/2 digits
1600
1600
1600
3750
5°C (ACDCI Function) After 1 hour warm-up
NUMBER O}
0.1 PLC
5 1/2 digits
165
165
165
375
F COUNTS
005 PLC
4 1/2 digits
20
20
20
42
-0005 PLC
3 1/2 digits
16000
16000
16000
16000
17500
20Hz-45Hz
46Hz- 100Hz i
101Hz-20KHz 3
** 4OOHZ-20KHz 65
21KHz- 100KHz 95
+55
90 vaY: Teal +
1 A range. (1 amp maximum input)
* PERCENT
OF
READING
FREQUENCY
>= 1 PLC
6 1/2 digits
1600
1600
1600
3750
1750
1°c (ACDCI] Function) After 1 hour warm-up
NUMBER O|
0.1 PLC
5 1/2 digits
165
165
165
375
180
F COUNTS
-005 PLC
4 1/2 digits
20
20
20
42
22
+0005 PLC
3 1/2 digits
20
20
20
42
1600
1600
1600
3750
165
165
165
375
1.65
0.5
0.4
0.75
16000
16000
16000
16000
20Hz-45Hz
46Hz-100Hz
1O1HZ-20KHz
** 4OOHZ-20KHz
For 1 year specifications, add .08% to the 90 day Percent of Reading figures.
** Using AC fast filter (ACBAND 400) for frequencies above 400Hz.
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