Megger AVO300 Series, Руководство пользователя

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decimal point, value and symbol (AC, V, etc.).
DC CURRENT MEASUREMENT
CAUTION: Do not make current measurements on the 10A scale for
longer than 30 seconds. Exceeding 30 seconds may cause damage to the
meter and/or the test leads.
1. Insert the black test lead plug into the negative (COM) jack.
2. For current measurements up to 4000 µA DC, set the function switch to
the uA position and insert the red test lead plug into the (µA) jack.
3. For current measurements up to 400 mA DC, set the function switch to
the mA range and insert the red test lead plug into the (mA) jack.
4. For current measurements up to 10 A DC, set the function switch to the
A position and insert the red test lead plug into the 10 A jack.
5. Press the AC/DC button until "DC" appears in the display.
6. Remove power from the circuit under test, then open up the circuit at
the point where you wish to measure current.
7. Connect the black test probe to the negative side of the circuit. Connect
the red test probe to the positive side of the circuit.
8. Apply power to the circuit.
9. Read the current in the display. The display will indicate the proper
decimal point, value and symbol.
10. Remove power from circuit before disconnecting test leads
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MAX/MIN button (AVO310 only)
The MAX/MIN function allows the meter to capture the highest or lowest
measurement for later reference.
1. Press the MAX/MIN button to begin measurement. The indicator "MAX"
or MIN will appear in the display.
2. If the "MAX MIN" messages are flashing, the instrument is in MAX/MIN
mode but not recording, press the MAX/MIN button to select a mode.
3. To return to normal AUTO measurement mode, hold down the
MAX/MIN button for 2 seconds.
DC VOLTAGE MEASUREMENTS
1. Set the function switch to the V DC position ("mV" will appear in the
display).
2. Insert the black test lead plug into the negative (COM) jack and the red
test lead plug into the positive (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 in the display. The display will indicate the proper
decimal point and value. If the polarity is reversed, the display will show
(-) minus before the value.
AC VOLTAGE MEASUREMENTS
1. Set the function switch to the V AC position.
2. Insert the black test lead plug into the negative (COM) jack and the red
test lead plug into the positive (V) jack.
3. Connect the test probe tips to the circuit under test.
4. Read the voltage in the display. The display will indicate the proper