Ac Specifications; Table 7-2 U1251B Accuracy Specifications - Agilent Technologies U1252B User's Manual And Service Manual

AC Specifications

AC specifications for U1251B
Table 7-2 U1251B accuracy specifications ± (% of reading + number of LSD) for true RMS AC voltage
Function Range
50.000 mV
500.00 mV
1000.0 mV
[1][2]
Voltage 5.0000 V
50.000 V
500.00 V
1000.0 V
Notes for U1251B AC voltage specifications:
1 Input impedance: Refer to
2 AC mV/V and AC µA/mA/A specifications are true RMS AC coupled, valid from 5% to 100% of range. The crest factor
may be up to 3 at full scale, up to 5 at half-scale, except for 1000 mV and 1000 V ranges, where the crest factor is 1.5 at full
scale and 3 at half scale.
Table 7-3 U1251B accuracy specifications ± (% of reading + number of LSD) for true RMS AC current
Function Range
500.00 µA
5000.0 µA
[1]
Current 50.000 mA
440.00 mA
5.0000 A
10.000 A
Notes for U1251B AC current specifications:
1 AC mV/V and AC µA/mA/A specifications are true RMS AC coupled, valid from 5% to 100% of range. The crest factor
may be up to 3 at full scale, up to 5 at half-scale, except for 1000 mV and 1000 V ranges, where the crest factor is 1.5 at full
scale and 3 at half scale.
2 Input current > 35 µArms.
3 Current can be measured from 2.5 A up to 10 A continuously. Add 0.5% to the specified accuracy if the signal measured is
in the range of 10 A to 20 A and for a period of up to 30 seconds. After measuring current > 10 A, leave the meter to cool
down for a period that is twice the measuring time used before application of low current measurement.
4 Input current < 3 Arms.
Agilent U1251B/U1252B User's and Service Guide
Resolution
30 Hz to 45 Hz
0.001 mV
0.01 mV
0.1 mV
0.0001 V
0.001 V
0.01 V
0.1 V
Table 7-19.
Resolution
[2]
0.01 µA
0.1 µA
0.001 mA
0.01 mA
0.0001 A
[3]
0.001 A
45 Hz to 1 kHz
1 + 60 0.6 + 40
1 + 60 0.6 + 25
1 + 60 0.6 + 25
1 + 60 0.6 + 25
1 + 60 0.6 + 25
1 + 60 0.6 + 25
1 + 60 0.6 + 40
30 Hz to 45 Hz 45 Hz to 2 kHz
1.5 + 50
1.5 + 40
1.5 + 40
1.5 + 40
[4]
2 + 40
[4]
2 + 40
Specifications
Frequency
1 kHz to 5 kHz 5 kHz to 30 kHz
1.0 + 40
1.0 + 40
1.0 + 25
1.0 + 25
1.0 + 25
1.0 + 25
1.0 + 40
Frequency
2 kHz to 20 kHz
0.8 + 20
0.8 + 20
0.8 + 20
0.8 + 20
0.8 + 20
0.8 + 20
< 3 A/5 kHz
7
1.6 + 60
1.6 + 60
3.5 + 120
3.5 + 120
3.5 + 120
-
-
3 + 80
3 + 60
3 + 60
3 + 60
3 + 60
159