UNI-T UT90A Especificações descarregar pdf (Página 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 VΩ 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

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