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Charged Capacitors. Always discharge any capacitor prior to
making a measurement since a charged capacitor may seriously
damage the meter.
Effect Of High D on Accuracy. A low D (Dissipation Factor)
reading is desirable. Electrolytic capacitors inherently have a
higher dissipation factor due to their normally high internal
leakage characteristics. If the D (Dissipation Factor) is excessive,
the capacitance measurement accuracy may be degraded.
It is best to check with the component manufacturers data sheet to
determine the desirable D value of a good component.
Combining Autoranging and Manual Ranging Operation.
Combining autoranging and manual ranging is a very convenient
way to gain the advantage of both modes. Starting in the
autoranging mode, insert or connect the inductor to be measured,
The instrument quickly steps to the correct range for measurement.
Next, press the
RANGE key to switch to the manual
ranging
mode. The instrument will be on the correct range. The display will
indicate whether a calibration needs to be performed to obtain
optimum accuracy. If not, take the reading. If so, perform the
calibration then take the reading, This method combines the speed
of autoranging and the accuracy of manual ranging and is very
easy and simple to perform.
Series Vs Parallel Measurement (for Inductors). The MT4080
normally measures inductance in the series equivalent mode. The
series mode displays the more accurate measurement in most cases.
