Mastech MAS345 - Current Measurement Procedure; Resistance Measurement Procedure

1. Connect the black test lead to the COM jack and the red test lead to the mA jack
-10-
for a maximum of 400mA. For a maximum of 10A, move the red lead to the 10A
jack.
2.
3.
4.
Set the function switch at mA or 10A range and push the DC/AC button to select
DCA or ACA measuring mode.
Connect test leads in series with the load in which the current is to be
measured.
Read LCD display. The polarity of red test lead connection will be indicated
when making a DC measurement.
3.3 RESISTANCE MEASURING
1. Connect the black test lead to the COM jack and the red teas lead to the V/Ω
jack. (NOTE: The polarity of the red test lead connection is positive “+”)