Model UT233: OPERATING MANUAL
20
When there is no input or single phase, the Meter
displays
OL
. button is not valid.
It can only sum up and save the current
measurement value. The maximum and minimum
value cannot sum up and save.
Only at this range can carry out sum of watts
measurement, other ranges cannot carry out this
measurement.
USB interface connection is invalid when carrying
out sum of watt measurement.
When testing has been completed, disconnect the
connection between the testing leads and the circuit
under test and remove testing leads from the input
terminals.
Note