160
Agilent U1251A/U1252A User’s and Service Guide
8
Specifications
U1251A AC Specifications
Table 6
U1251A
AC Accuracy ± (% of r No. of Least
Significant
Digit)
[1] Input impedance: > 1GHz for 50 mV to 1000 mV. Input impedance is 1.1 M
Ω
(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).
[3] Input current >35
μ
Arms.
[4] Current can be measured from 2.5 A up to 10 A continuously. An additional 0.5%
needs to be added to the specified accuracy if the signal measured is in the
range of 10 A to 20 A for 30 seconds maximum. After measuring a current of
>10 A, leave the meter to cool down for twice the measuring time used before
application of low current measurement.
[5] Input current < 3 Arms.
Function
Range Resolution
Frequency
30 Hz
to
45 Hz
45 Hz
to
1 kHz
1 kHz
to
10 kHz
10 kHz
to
30 kHz
True RMS
AC Voltage
(1)
50.000 mV
0.001 mV
1+60
0.6+40
1.0+40
1.6+60
500.00 mV
0.01 mV
1+60
0.6+25
1.0+40
1.6+60
1000.0 mV
0.1 mV
1+60
0.6+25
1.0+25
1.6+40
5.0000 V
0.0001 V
1+60
0.6+25
1.0+25
1.6+40
50.000 V
0.001 V
1+60
0.6+25
1.0+25
1.6+40
500.00 V
0.01 V
1+60
0.6+25
1.0+25
1.6+40
(2)
1000.0 V
0.1 V
1+60
0.6+40
1.0+40
N/A
Function
Range Resolution
Frequency
30 Hz
to
45 Hz
45 Hz
to
2 kHz
2 kHz
to
20 kHz
AC Current
500.00
μ
A
(3)
0.01
μ
A
1.5+50
0.8+20
3+80
5000.0
μ
A
0.1
μ
A
1.5+40
0.8+20
3+60
50.000 mA
0.001 mA
1.5+40
0.8+20
3+60
440.00 mA
0.01 mA
1.5+40
0.8+20
3+60
5.0000 A
0.0001 A
2+40
(5)
0.8+20
3+60
<3 A/5 kHz
10.000 A
(4)
0.001 A
2+40
(5)
0.8+20
Summary of Contents for U1251A
Page 34: ...34 Agilent U1251A U1252A User s and Service Guide 1 Getting Started Tutorial...
Page 116: ...116 Agilent U1251A U1252A User s and Service Guide 5 Maintenance...
Page 120: ...120 Agilent U1251A U1252A User s and Service Guide 6 Accessories...
Page 156: ...156 Agilent U1251A U1252A User s and Service Guide 8 Specifications...
