Major tech MT1877IV Manual de instrucciones - Página 8
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1. Set the function switch to the position.
2. Insert the black test lead plug into the negative (COM) socket and the
red test lead plug into the positive n jack.
3. Press the MODE button until "Ω" appears on the display.
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. Read the resistance on the display. The display will indicate the proper
decimal point, value and symbol.
3.11. CONTINUITY CHECK
WARNING: To avoid electric shock, never measure continuity on
circuits or wires that have voltage on them.
1. Set the range switch to the
2. Insert the black test lead plug into the COM socket and the red test lead
plug into the positive
3. Press the MODE button until "
4. Touch the test probe tips to the circuit or wire you wish to check.
5. If the resistance is less than 50Ω, the audible signal will sound. The
display will also show the actual resistance in ohms.
3.12. DIODE TEST
WARNING: To avoid electric shock, do not test any diode that has
voltage on it.
1. Set the function switch to the
2. Insert the black test lead plug into the COM socket and the red test lead
plug into the
3. Press the MODE button until "
4. Touch the test probe tips to the diode or semiconductor junction you
wish to test. Note the meter reading.
5. Reverse the probe polarity by switching probe position. Note this
reading.
6. The diode or junction can be evaluated as follows:
A. If one reading shows a value and the other reading shows OL, the
diode is good.
B. If both readings show OL, the device is open.
C. If both readings are very small or zero, the device is shorted.
NOTE: The value indicated on the display during the diode check is the
forward voltage.
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position.
socket.
socket.
" appears on the display.
position.
" appears on the display.
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