Operations and Features 2
U3402A User’s and Service Guide 21
Performing Voltage Measurements
Measuring AC Voltage
1 Press .
2 Connect the red and black test leads to the respective input terminals as
shown in Figure 2- 1.
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 2-1 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.
• 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 M
W
±2% in parallel with <120 pF on all ranges
• Input protection:
750 V RMS on all ranges
U3402-90001.book Page 21 Friday, July 24, 2009 4:04 PM
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