HP 3457A Service Manual page 20

3457A General Information
Table 1-1. Specifications
TRUE RMS AC VOLTAGE (Cont'd)
24 HOUR: Teal + 1°C (ACV Function) After 2 hour warm-up Accuracy relative to calibration standard
300 V range.
FREQUENCY PERCENT NUMBER OF COUNTS
oF >= 1 PLC 0.1 PLC -005 PLC -0005 PLC
READING |6 1/2 digits|5 1/2 digits|4 1/2 digits|3 1/2 digits
20Hz-45Hz 0.56 720 76 12
45Hz- 100Hz 0.21 720 76 12
1OOHz-20KiIz 0.13 720 76 12
** GOOHZ-20KHz 0.14 720 510 55
20KNz- 100KHz 1.0 3300 334 38
90 DAY: Teal + 5°C (ACV Function) After 1 hour warm-up
30 mv to 30 V ranges.
FREQUENCY * PERCENT NUMBER OF COUNTS
OF >= 1 PLO 0.1 PLC -005 PLC -0005 PLC
READING |6 1/2 digits]5 1/2 digits|4 1/2 digits]3 1/2 digits
20Hz2-45Hz 0.56 1120 116 16
45Hz-100Hz 0.21 1120 116 16
100H2-20KHz 0.13 1120 116 16
** 4OOHZ-20KHz 0.14 1120 550 59
20KHz-100KHz] 0.66 2100 224 27
100KHz-300KHz| 3.16 9700 974 102
30OKH2- IMHz 10.16 66400 6640 668
90 DAY: Teal + 5°c (ACV Function) After 1 hour warm-up
300 V range.
FREQUENCY * PERCENT NUMBER OF COUNTS
OF >= 1 PLC 0.1 PLC -005 PLC -0005 PLC
READING |6 1/2 digits]5 1/2 digits|4 1/2 digits]3 1/2 digits
20Hz-45Hz 0.62 1120 116 16
45Hz-100Hz 0.27 1120 116 16
100Hz-20KHz 0.19 1120 116 16
** 400HZ-20KHz 0.2 1120 550 59
20KHz-100Kiiz} 1.06 3700 374 42
* Specifications apply within one week of AC auto-cal (ACAL 2) for stable temperature conditions.
(Teal £5°C). If AC auto-cal is not used, add 0.6 to the percent of reading figures.
** Using AC fast filter (ACBAND 400) for frequencies above 400Hz.
For 1 year specifications, add .1% to 24 hour percent of reading figures, add 600 to 6 1/2 digit
counts, add 60 to 5 1/2 digit counts, add 6 to 4 1/2 digit counts, add .6 to 3 1/2 digit counts
(Teat +5°c).
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