Dc Current Measurements; Backlight - Megger AVO410 Manuel Utilisateur

DC CURRENT MEASUREMENTS

1. Set the function switch to the DC A position. (AUTO and DC A will
appear on the display).
2. Insert the black test lead into the COM jack and the red test lead into the
A jack.
3. Remove power from circuit under test, then open circuit at a convenient
point where current is to be measured.
4. Connect the black test probe to the negative side of the circuit. Connect
the red test probe to the positive side of the circuit.
5. Carefully apply the power
6. Read the measured on the display.
7. Remove supply before removing test leads and reconnecting circuit.
FEATURE BUTTONS

BACKLIGHT

The AVO410 has a backlit display for all the different functions which has an
auto off in 60 seconds.
MIN MAX
The MIN MAX function enables the user to display both a minimum and a
maximum measured reading. To activate, first select a function and make a
measurement. Press the MIN MAX button to store the maximum reading.
Should the value increase then the new value will be stored. Pressing the
MIN MAX button once more will switch the instrument display to minimum
reading.
Pressing the HOLD button while in MIN MAX mode will stop the AVO410
updating the maximum and minimum displayed reading. Holding down the
MIN MAX button for >1 sec. will switch the function off.
HOLD
Press the HOLD button to freeze the reading on the display. The MIN MAX
function is unavailable when the Hold is active.
RS-232
The RS232 feature on the meter has been disabled.
RANGE
When any of the individual functions are first selected the unit will be in the
auto ranging mode.
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