Keysight U3606B, Руководство пользователя

Страница: 53 / 210

Operation and Features 2
Measuring Current
U3606B User’s Guide 35
AC current measurement
Available ranges 10.0000 mA, 100.000 mA, 1.00000 A, 3.0000 A
Measurement
method AC coupled true rms
Burden voltage
and shunt
resistance
• < 0.2 V/10
Ω
for 10 mA range
• < 0.2 V/1
Ω
for 100 mA range
• < 0.3 V/0.05
Ω
for 1 A range
• < 0.7 V/0.05
Ω
for 3 A range
Input protection Protected with a 3.15 A/500 V, FF fuse
Crest factor
For < 5:1 errors included. Limited by the peak input and
100 kHz bandwidth. Maximum 3.0 at full scale.
Peak input 300% of range. Limited by maximum input.
Table 2-2 Current measurement summary (continued)
Item Description
N O T E
Please expect some delay when obtaining a stable AC current reading on
the following test conditions:
• The signal has a large DC current offset comparable to the AC current
signal
• Changes on the range/function
N O T E
Using the AC+DC function
The U3606B is a true-rms multimeter that returns an accurate rms reading
not only for sine waves, but also other AC signals such as square, triangle,
and staircase waveforms without any DC offset. However, you may choose
to return the measured AC signal
with its DC offset by using the AC+DC
function.