Fluke 83V FE 83V & 87V Users Manual - Page 28

Using Conductance for High Resistance or Leakage Tests

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80 Series V Users Manual Using 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 as shown for measuring resistance (Figure 5); then press Cuntil 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. 20

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80 Series V
Users Manual
20
Using 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
M
Ω
, 1/1 nS = 1,000 M
Ω
.
To measure conductance, set up the Meter as shown for
measuring resistance (Figure 5); then press
C
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.