18
Model UT30A: OPERATING MANUAL
Measurement Operation (8)
( figure 7)
3) It will take several seconds for the display to become stabilize when resistance
value is over 1M
Ω
, it is normal, because it is auto-range.
F. Diode measurement
( figure 7)
Warning
Cut off the power supply of the object to
avoid damages to the Meter When
measuring diode, no charge in capacitor.
1) Measuring value inputs from “V
Ω
mA”
jack (red test leads) and “COM” jack
(black test leads).
2) When measuring voltage drop of PN,
for a good silicon semiconductor
structure, normal positive reading
should stay between 0.5V~0.8V.
Negative display being “OL” means
black red
