EX205T-EU-EN V1.0 8/12
7
RESISTANCE MEASUREMENTS
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. Rotate the function switch to the
Ω
position.
2. Insert the black test lead banana plug into the negative
COM
jack.
Insert the red test lead banana plug into the positive
jack.
3. Touch the test probe tips across the device under test.
4. Read the resistance in the display.
CONTINUITY CHECK
WARNING:
To avoid electric shock, never measure continuity on circuits or wires that have a
voltage potential.
1. Rotate the function switch to the
position.
2. Insert the black lead banana plug into the negative
COM
jack.
Insert the red test lead banana plug into the positive jack.
3. Press the
MODE
button to indicate“
" on the display
4. Touch the test probe tips to the circuit or wire you wish to check.
5. If the resistance is less than the continuity threshold, the audible signal will sound.
DIODE TEST
1. Rotate the function switch to the green
position.
2. Insert the black test lead banana plug into the negative
COM
jack and the red test
lead banana plug into the positive jack.
3. Press the
MODE
button to indicate “ “and “
V
” on the display.
4. Touch the test probes to the diode under test. Forward voltage will typically indicate
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.
