10
Capacitance;
BeepLit
TM
Diode
Inputs are made via the test lead terminals
V-COM
. Press the
SELECT
button
momentarily to select the
subject functions in sequence. Last selection will be saved as
power up default for repeat measurement convenience.
◎
BeepLit
TM
Diode
●
Reading indication:
Forward voltage drop (forward biased) for a good silicon diode
is between 0.400V to 0.900V. A higher reading indicates a leaky diode (defective). A
zero reading indicates a shorted diode (defective). An over-range display indicates an
open diode (defective). Reverse the test leads connections (reverse biased) across the
diode. The digital display shows over-range if the diode is good. Any other readings
indicate the diode is resistive or shorted (defective).
●
Beep-Alert & BeepLit
TM
indication:
When the display reading drops across 0.850V,
the meter alerts a short beep to signal a reasonable forward voltage drop of common
diodes. However, if the reading further drops below 0.100V, the meter gives a
continuous beep tone together with flashing display backlight to indicate a shorted
diode or a complete wire. It is similar to that of BeepLit
TM
Continuity function but
BeepLit
TM
Diode, instead, is based on voltage threshold to indicate a complete wire.
Note:
Summary of Contents for BM785
Page 1: ...USER S MANUAL BM789 BM786 BM785 Digital Multimeter ...
Page 22: ...21 ...