RS Pro RS IDM-20 Manuel D'instructions page 7

Pocket Digital Multimeter / English
Resistance measurement
WARNING: To avoid electric shock, disconnect power to the unit under test
and discharge all capacitors before taking any resistance measurements. Remove
the batteries and unplug the line cords.
1. Set the function switch to the position.
2. Press the MODE button to indicate on the display.
3. 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.
4. Read the resistance in the display
Continuity check
WARNING: To avoid electric shock, never measure continuity on circuits or
wires that have voltage on them.
1. Set the function switch to the position.
2. Press the MODE button to indicate on the display
3. Touch the test probe tips to the circuit or wire you wish to check.
4. If the resistance is less than approximately 150, the audible signal will sound.
If the circuit is open, the display will indicate "OL".
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Diode test
1. Set the function switch to the
2. Press the MODE button to indicate
3. Touch the test probes to the diode under test. Forward voltage will typically indicate
Capacitance measurement
1. Remove the bottom cover and secure the screw.
2. Replace old battery with fresh Two 1.5V AAA type battery.
3. Replace the bottom cover and secure the screw.
1. Set the function switch to the "
2. Press the SELECT button until "nF" appears in the display.
3. Press the RELATIVE button to zero the display.
4. Connect the test leads to the capacitor to be measured.
5. Read the value on the display.
position.
on the display.
0.400 to 0.700V. Reverse voltage will indicate "OL". Shorted devices will indicate
near 0V and an open device will indicate "OL" in both polarities
WARNING: To avoid electric shock, disconnect power to the unit under test
and discharge all capacitors before taking any capacitance measurements. Remove
the batteries and unplug the line cords. Never measure continuity on circuits or
wires that have voltage on them.
• ))) " position.
Pocket Digital Multimeter / English
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