3 Application Tutorial
58 U3402A User’s and Service Guide
Measure Resistance Using 2-Wire Mode
1 Connect the red and black test leads to the resistor and probe the test points
as shown in Figure 3- 5.
Figure 3-5 Terminal connection when measuring resistance using 2-wire mode
2 Press to select the 2- wire W measurement for primary display. The
2W is displayed.
3 Press . Use
and to select autoranging or manual ranging for
primary display.
Do not apply voltage exceeding 500 V PEAK between V.W.Hz and Lo input terminals.
When measuring low resistance, you may use the Rel operation to reduce the
measurement error created by the test leads resistance and contact resistance in the test
loop (0.1 W~ 0.5 W typical)
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