Lutron Electronics LCR-9083 User Manual page 9

5) Read the display. The value indicated corresponds to
the range selected. If the DISPLAY shows "1", it
indicates an Out-of-Range measurement. In order
to improve the resolution, Select the next higher range.
NOTE:
If the capacitance value is unmarked start
1) *
with the Lower range ( 2 nF ) and keep
increasing until a suitable reading is
obtained.
For the 200 nF range are designed for measuring from
2) *
2 nF to 200 nF only.
For the 2 uF range are designed for measuring from
*
0.02 uF to 2 uF only.
For the 20 uF range are designed for measuring from
*
0.2 uF to 20 uF only.
For the 200 uF range are designed for measuring from
*
2 uF to 200 uF only.
It is normal, if get the no convineant reading
value when measue capacitacitance :
< 2 nF of 200 nF range.
< 0.02 uF of 2 uF range.
< 0.2 uF of 20 uF range.
< 2 uF of 200 uF range.
3) Consideration for internal circuit's stray capacitance of 2
nF range, if intend to make the precision measurement,
should open the test alligators (not connect the measuring
capacitor ), record the display (for example 15 uF ..... it is
the circuit's stray capacitance). Then final true
measurement value will be the " reading value " deduct
above " internal circuit stray capacitance "
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