Technical data

1 Getting Started Tutorial
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
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
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