CEM DT-337, Operating Instruction, Page: 9 / 13

8
DC/AC Voltage Measurements
1. Insert the black test lead into the negative COM terminal
and the
red test lead into the positive V terminal.
2. Set the function switch to the V position.
3. Select AC or DC with the
MODE button.
4. Connect the test leads in parallel to the circuit under test.
5. Read the voltage measurement on the LCD display.
Resistance and Continuity Measurements
1.
Insert the black test lead into the negative COM terminal
and the
red test lead into the positive terminal.
2.
Set the function switch to the •)))
Ω
position.
3.
Use the multifunction MODE button to select resistance.
4.
Touch the test probe tips across the circuit or component
under
test. It is best to disconnect one side of the device under
test so
the rest of the circuit will not interfere with the resistance
reading.
5.
For Resistance tests, read the resistance on the LCD
display.
6.
For Continuity tests, if the resistance is < 150 Ω , a tone
will sound.
Diode Measurements
1. Insert the black test lead banana plug into the negative
COM jack and the red test lead banana plug into the
positive diode jack.
2. Turn the rotary switch to the •))) position.