UNI-T UT30B Dokumentacja Pobierz pdf (Strona 24)

G.Make Measurements(8)

6. Diode measurement (see figure 7)

(figure 7)

1) Avoid damages to the meter. When

measuring diode, cut off the power supply

of the object and make sure there is no

charge in capacitor.

2) When measuring voltage drop of diode,

transistor, and other semiconductor

component at diode function, its silicon

semiconductor structure should be normal

positive reading and stay between 0.5V

and 0.8V. Negative display being “1” means

open circuit; when the red test lead is

positive pole and the black one is negative pole.

24

Model UT30B/C/D/F: OPERATING MANUAL

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