AD2821A OPERATION MANUAL
Notes on Use
l This meter is only for indoor use.
l Turn off the AD2821A while switching the power supply
between battery and DC adapter or replacing the
battery.
l Although internal circuit protection is provided, DC
voltage or current may damage
measure a capacitor, be sure the capacitor is fully
discharged.
l Take out the battery when the meter is not in use for
more than 3 months.
l A single standard 9V battery can be used for the power
supply. AD2821A will not work normally when battery
voltage is less than 6V.
l The 12V AC to DC adaptor is recommended to be used
for AD2821A power supply.
l Perform Open and Short corrections for accurate
measurement especially when test fixture is changed.
l The functions locked with password are not accessible
by users.
AD2821A. Before you
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