16
Measurement Operation(3)
B.AC Voltage Measurement
(see figure 3)
red black
( figure 3)
Warning
To avoid harms to you or damages to the Meter from
electric shock, please do not attempt to measure
voltages higher than 1000V DC/750V AC although
readings may be obtained.
The AC voltage ranges are: 2.000V, 20.00V, 200.0V and
750.0V.
To measure AC Voltage, connect the Meter as follows:
1. Insert the red test lead into the
V
Ω
terminal and
the black test lead into the
COM
terminal.
2. Set the rotary switch to an appropriate measurement
position in
V
range.
3. Connect the test leads across with the object being
measured.
The measured value shows on the display, which is
effective value of sine wave (mean value response).
Note
l
If the value of voltage to be measured is unknown,
use the maximum measurement position (750V) and
reduce the range step by step until a satisfactory
reading is obtained.
Model UT90A: OPERATING MANUAL
