Measurement Operation; Ac Voltage Measurement - UNI-T UT70C Operating Manual

Model UT70C: OPERATING MANUAL

Measurement Operation (1)

A. AC Voltage Measurement
Warning
To avoid harms to you or damages to the Meter from
electric shock, please do not attempt to measure
voltages higher than 1000V / 750V rms although
readings may be obtained.
The AC Voltage ranges are: 800.0mV, 8.000V, 80.00V,
800.0V and 1000V. To measure AC Voltage, connect
the Meter as follows:
1. Insert the red test lead into the
and the black test lead into the COM terminal.
2. Set the rotary switch to V .
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
In each range, the Meter has an input impedance
of 10M
measurement errors in high impedance circuits. If
the circuit impedance is less than or equal to 10k ,
the error is negligible (0.1% or less).
l When AC voltage measurement has been completed,
disconnect the connection between the testing leads
and the circuit under test.
red black
(figure 3)
. This loading effect can cause
16
(see figure 3)
V Hz terminal