Getting Started
1
Keysight U3401A User’s and Service Guide
37
Performing current measurements
Measuring AC (RMS) or DC Current in mA
– Measurement ranges: 500.00
μ
A, 5.00 mA, 50.00 mA, 500.00 mA
– Shunt resistance: 0.01
Ω
to 100
Ω
for 500
μ
A to 10 A ranges
– Input protection: Internal 25 A, 440 V FH fuse for one terminal
1
Press
or .
2
Power off the measured circuit.
3
Connect the red and black test leads to mA input terminal as shown in
.
4
Probe the test points in series with the circuit.
5
Power on the measured circuit and read the display.
Figure 1-12
ACI
RMS or DCI (mA) terminal connection and display
ACI or DCI
current source
+
–