Getting Started
1
Keysight U3401A User’s and Service Guide
35
Performing voltage measurements
AC voltage
– Five ranges: 500.00 mV, 5.00 V, 50.00 V, 500.00 V, 750.00 V
– Measurement method: AC coupled true RMS—measure the AC component
with up to 400 VDC bias on any range
– Crest factor: Maximum 3:1 at full scale
– Input impedance: 1 M
Ω
±2% parallel with capacitance <100 pF on all ranges
– Input protection: 750 V RMS on all ranges
1
Press .
2
Connect the red and black test leads to the respective input terminals as
shown in
3
Probe the test points and read the display. In autoranging mode, the multimeter
automatically selects the appropriate range and the measurement is displayed
.
Figure 1-10
ACV terminal connection and display
WARNING
Exceeding the crest factor limit may result in an incorrect or a lower reading.
Do not exceed the crest factor limit to avoid instrument damage and the risk
of electric shock.
CAUTION
Ensure that the terminal connections are connected correctly before making
any measurement. To avoid damaging the multimeter, do not exceed the
rated input limit.
+
–
ACV
voltage
source
