Extech Instruments MultiPro MP510 User Manual page 12

Resistance and Continuity Measurements
1. Insert the black test lead banana plug into the negative COM jack and
the red test lead banana plug into the V/Ω/CAP jack.
2. Set the function switch to the "Ω
3. Press the SELECT key momentarily to select Continuity (if required).
4. Touch the test probe tips across the circuit or part under test. It is best
to disconnect one side of the part under test so the rest of the circuit
will not interfere with the resistance reading.
5. For Resistance tests, read the resistance on the display.
6. For Continuity tests, If the resistance is < 20Ω, an audible tone will
sound
Automatic test lead resistance calibration
When manually entering the 50Ω range (using the RANGE key) the
automatic test lead resistance feature will prompt ("Shrt" in the display)
the user to short the inputs for calibration. Short the test leads for about
3 seconds until the display shows zero. The resistance of the test leads
is now subtracted from the reading. The compensation value can be as
much as 5Ω.
Note: The compensation procedure must be repeated each time the
range or function is changed.
Capacitance Measurements
1. Insert the black lead into the negative COM jack and the red test lead
into the positive CAP jack.
2. Set the function switch to the "
3. Press the SELECT key momentarily to select Capacitance (if
required).
4. Touch the test leads to the capacitor to be tested and read the
measured value.
" position.
CAP" position.
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