Prokit's Industries MT-1620 - Manual (Page 28)

4.9 DC VOLTAGE MEASURING
WARNING
You can’t input the voltage which more than
600V DC, it’s possible to show higher voltage,
but it’s may destroy the inner circuit.
Pay attention not to get an electric shock
when measuring high voltage.
4.9.1 Connect the black test lead to the COM jack
and the red test lead to the V jack.
4.9.2 Set the transform switch at the V range
position.
4.9.3 Put down the "FUNC." to enter the DC
measurement. Auto range or manual range
can be transformed by putting the “RANGE”.
4.9.4 Connect test leads across the source or load
under measurement.
4.9.5 You can get reading from LCD. The polarity
of the red lead connection will be indicated
along with the voltage value.
NOTE:
 When only the figure ‘OL’ is displayed, it
indicates overrange situation and the higher
range has to be selected.
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