1Getting Started
18 U3402A User’s and Service Guide
Performing voltage measurements
AC voltage:
• Five ranges:
• Slow reading rate: 120.000 mV, 1.20000 V, 12.0000 V, 120.000 V, 750.00 V.
• Medium reading rate: 400.00 mV, 4.0000 V, 40.000 V,400.00 V, 750.0 V.
• Fast reading rate: 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 750 V.
• Measurement method: AC coupled true RMS—measures the AC component with up to 400 VDC
bias on any range
• Crest factor: Maximum 3:0 at full scale
• Input impedance: 1 MW ± 2% in parallel with < 120 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 Figure 1- 10.
3 Probe the test points and read the display. In auto- ranging mode, the
multimeter automatically selects the appropriate range and the
measurement is displayed.
Figure 1-10 ACV terminal connection and display
Ensure that the terminal connections are connected correctly before making any
measurement. To avoid damaging the multimeter, do not exceed the rated input limit.