Ac Specifications; Table 7-2 U1251A Accuracy Specifications; Table 7-3 U1251A Accuracy Specifications - Agilent Technologies U1251A User's Manual And Service Manual

AC Specifications

AC specifications for U1251A
Table 7-2 U1251A accuracy specifications ± (% of reading + number of LSD) for true RMS AC voltage
Function Range
50.000 mV
500.00 mV
1000.0 mV
[1]
Voltage 5.0000 V
50.000 V
500.00 V
1000.0 V
Notes for U1251A AC voltage specifications:
1 Input impedance: > 1GHz for 50 mV to 1000 mV. Input impedance is 1.1 MΩ (nominal) with <100 pF for 5 V to 1000 V
ranges.
2 The input signal is lower than the product of 20,000,000 V-Hz (product of voltage and frequency).
Table 7-3 U1251A accuracy specifications ± (% of reading + number of LSD) for true RMS AC current
Function Range
500.00 µA
5000.0 µA
Current 50.000 mA
440.00 mA
5.0000 A
10.000 A
Notes for U1251A AC current specifications:
1 Input current > 35 µArms.
2 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.
3 Input current < 3 Arms.
Agilent U1251A/U1252A User's and Service Guide
Resolution 30 Hz to 45 Hz
0.001 mV 1 + 60
0.01 mV 1 + 60
0.1 mV 1 + 60
0.0001 V 1 + 60
0.001 V 1 + 60
0.01 V 1 + 60
0.1 V 1 + 60
Resolution
[1]
0.01 µA
0.1 µA
0.001 mA
0.01 mA
0.0001 A
[2]
0.001 A
Frequency
45 Hz to 1 kHz
0.6 + 40
0.6 + 25
0.6 + 25
0.6 + 25
0.6 + 25
0.6 + 25
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
[3]
2 + 40
[3]
2 + 40
Specifications
1 kHz to 10 kHz 10 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
8
1.6 + 60
1.6 + 60
1.6 + 40
1.6 + 40
1.6 + 40
[2]
1.6 + 40
-
3 + 80
3 + 60
3 + 60
3 + 60
3 + 60
153