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Operation; Dc Voltage Measurements - Megger AVO410 Guia Del Usuario

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OPERATION

AC VOLTAGE MEASUREMENTS
1.
Set the function switch to the V AC position (AUTO, T-RMS and AC volts
will appear on the display).
2.
Insert the black test lead in the COM jack and the red test lead into the
V jack.
3.
Connect the test probe tips to the circuit under test.
4.
Read the voltage on the display.

DC VOLTAGE MEASUREMENTS

1.
Set the function switch to the V DC position (AUTO and DC volts will be
appear on the display).
2.
Insert the black test lead into the COM jack and the red test lead into the
V jack.
3.
Connect the test probe tips to the circuit under test. Be sure to observe
the correct polarity (red lead to positive, black lead to negative)
4.
Read the voltage on the display. If the polarity is reversed, the display will
show (-) minus before the reading.
RESISTANCE (Ω) MEASUREMENTS
1.
Set the function switch to the Ω position (AUTO and MΩ will appear on
the display).
2.
In addition, O.L will be displayed indicating an open circuit.
3.
Insert the black test lead into the COM jack and the red test lead into the
Ω jack.
4.
Connect the test probe tips to the circuit under test.
5.
According to measured value the reading will be in Ω, kΩ or MΩ.
Note: The AVO410 provides an open circuit voltage <-1.5 V to the circuit
under test which will cause transistor junctions to conduct so it is advisable
to disconnect the item to be tested from the circuit to obtain an accurate
reading.
DIODE / CONTINUITY TESTS
WARNING: To avoid electric shock never test a diode or conduct a continuity
test on an energized circuit.
1.
Set the function switch to the diode/continuity position. (The diode and V
symbols will appear).
2.
In addition, .OL will be displayed indicating an open circuit.
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