Getting Started Tutorial 1
Keysight U3402A User’s and Service Guide 45
Testing Continuity
The continuity test measures the resistance of a tested circuit with 2-wire method
at approximately 0.5 mA and determines whether the circuit is intact. The beeper
emits a continuous beep tone when the input resistance value is less than the
approximate 10 Ω.
Measurement are displayed as shown below:
– Measurement method: 0.5 mA ± 0.2% constant current source, open circuit
voltage limited to < +9 V
– Continuity threshold: 10 Ω fixed
– Input protection: 500 V RMS on all ranges
1 Press to toggle to the continuity measurement function.
2 Connect the red and black test leads to the input terminal as shown in
Figure 1-19.
3 Probe the test points and read the display.
Reading rate Measurement display
Slow 120.000 Ω range
Medium 400.00 Ω range
Fast 400.0 Ω range
Disconnect circuit power and discharge all high-voltage capacitors before
testing the circuit continuity to avoid damaging the multimeter or the device
under test.
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