Amprobe AM-420 Manuale d'uso - Pagina 11
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Measuring DC Current
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To avoid personal injury or
damage to the Meter:
1. Do not attempt to make an
in-circuit current measurement
when the open-circuit
potential to earth ground
exceeding 250V.
2. Switch to proper function and
range for your measurement.
3. Do not place the test probe in
parallel with a circuit when the
test leads are connected to the
current terminals.
4. Connect the test leads to the
circuit before powering the
circuit under test.
5. After measurement, switching
OFF the circuit's power before
removing test leads from the
circuit.
Measuring Resistance
X�
Disconnect circuit power and
discharge all high-voltage
capacitors before testing
resistance.
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