Major tech MT715 Manual de instrucciones - Página 11
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5.3. Low Z Voltage Measurements
NOTES: Observe all safety precautions when working on live voltages. Do
not connect to circuits that exceed 600V AC/DC when the meter is set to
Low Z.
Low Z is used when there is a suspicion of a "ghost" voltage. Ghost
voltages are present when non-powered wires are in close proximity to
wires powered by AC voltage. Capacitive coupling between wires make it
appear that non-powered wires are connected to a real source of voltage.
The Low Z setting places a load on the circuit which dissipates and greatly
reduces ghost voltage.
1. Set the rotary function switch to the Low Z position.
2. Momentarily press the MODE button to select AC or DC voltage. The
AC or DC symbol will appear on the LCD display.
3. lnsert the black test lead into the COM input jack and the red test lead
into the V input jack. If measuring DC voltage, touch the red test lead
to the positive side of the circuit and the black test lead to the negative
side of the circuit.
4. Touch the test leads to the circuit under test.
5. Read the voltage on the LCD display.
5.4. Resistance Measurements
1.
Insert the black test lead into the negative COM terminal and the red
test lead into the V Ω
2.
Set the function switch to the Ω
3.
Use the MODE button to select Resistance Measurements
4.
Touch the test probe tips across the circuit or component under test.
5.
Read the resistance on the LCD display.
5.5. Continuity Measurements
1.
Insert the black test lead into the negative COM terminal and the red
test lead into the V Ω
2.
Set the function switch to the Ω
3.
Use the MODE button to select continuity
change when the MODE button is pressed.
4.
Touch the test probe tips across the circuit or component under test.
5.
If the resistance is at less than 50Ω, a tone will sound.
CAP positive terminal.
CAP position.
CAP positive terminal.
CAP position.
̎ ̎
. The display icons will
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