Sper Scientific 840073 Multimeter - Auto-Ranging - Manual (Page 17)

1. DC Voltage Measurement
(figure 2)
G. Make Measurements(2)
( figure 2 )
1) Never measure voltage value exceeding 500V, although it is possible
to get the reading, which will cause damages to the internal circuit and
hurt users;
2) Measuring value input from “V
Ω
mA” (red test lead) and “COM”
(black test lead.)
3) The Meter has auto-range function
with initial range 400mV, at which,
the meter may display irregular
digits for open Circuit, and come
to ZERO for short circuit, which
are both normal.
17
Model UT30A: OPERATING MANUAL