Diode Test,Capacitance Functions - Amprobe AM-250 User Manual

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Caution

�

Using Resistance, Continuity, Diode or Capacitance function in a live circuit

will produce false results and may damage the instrument. In many cases

the suspected component must be disconnected from the circuit to obtain

an accurate measurement reading.

Diode test,Capacitance functions

Defaults at e. Press

test function. Normal forward voltage drop (forward biased) for a good silicon

diode is between 0.400V to 0.900V. A reading higher than that indicates a

leaky diode (defective). A zero reading indicates a shorted diode (defective).

An OL indicates an open diode (defective). Reverse the test leads connections

(reverse biased) across the diode. The digital display shows OL if the diode is

good. Any other readings indicate the diode is resistive or shorted (defective).

Defaults at e. Press SELECT button momentarily 3 times to select

Capacitance function. Relative zero

parasitic capacitance of the leads and the internal protection circuitry of the

meter when measuring low capacitance in the order of Pico Farad (pF).

SELECT button momentarily 2 times to select

mode can be used to zero out the

Diode

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Table of Contents