UNI-T UT205A Operating Manual page 18

To measure current, do the following:
1. Set the rotary switch to the current measurement mode.
2. Check the lever is in good condition.
3. Press the lever to open the transformer jaws.
4. Center the conductor within the transformer jaw.
The measured value shows on the display, it is a effective value of sine wave
(mean value response).
Note
When current measurement has been completed, disconnect the connection
between the conductor under test and the jaw, and remove the conductor away
from the transformer jaw of the Meter.
Model UT205A/206A: OPERATING MANUAL
18