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Digital Multimeter
How to Make Measurements
17
How to Use Conductance for High Resistance or
Leakage Tests
Conductance, the inverse of resistance, is the ability of a
circuit to pass current. High values of conductance
correspond to low values of resistance.
The Meter's 60-nS range measures conductance in
nanosiemens (1 nS = 0.000000001 siemens). Because
such small amounts of conductance correspond to
extremely high resistance, the nS range lets you
determine the resistance of components up to
100,000 MΩ, 1/1 nS = 1,000 MΩ.
To measure conductance, set up the Meter for measuring
resistance as shown in Figure 5, then press until
the nS indicator appears on the display.
The following are some tips for measuring conductance:
• High-resistance readings are susceptible to
electrical noise. To smooth out most noisy readings,
enter the MIN MAX recording mode; then step to the
average (AVG) reading.
• There is normally a residual conductance reading
with the test leads open. To ensure accurate
readings, use the relative (REL) mode to subtract
the residual value.
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