14
Model UT231: OPERATING MANUAL
When the voltage input is higher than 30V, the
display shows to warn you to take extra care
of safety.
When the input voltage is higher than 600V
(r.m.s.), the display shows OL.
The AC Voltage ranges are:
15V, 100V, 300V and 600V
The frequency range is:
20Hz~500Hz
Warning
To measure AC v frequency, connect the Meter
as follows:
Insert the red test lead into the
V
terminal and black
test lead to the
COM
input terminal.
Press the
MENU
to select Voltage (main display)
+ Frequency (secondary display) range and connect
the two test leads to the object being measured.
The double display shows the AC voltage True
RMS value and the frequency value.
1.
2.
3.
Press
MAX/MIN
again to show the present AC
voltage True RMS value.
The display shows
OL
when the input voltage is
higher than 600V (r.m.s).
6.
7.
When the measurement has been completed,
disconnect the connection between the testing leads
and the circuit under test and remove testing leads
from the input terminals.
Note
Press
MAX/MIN
once, the LCD displays MAX, it
starts recording the maximum AC voltage True RMS
value.
Press
MAX/MIN
again, the LCD displays MIN, it
starts recording the minimum AC voltage True RMS
value.
4.
5.
