Amprobe AM-250 Digital-Multimeter - Manual (Page 11)

5
µA, mA, and A Current functions
Default at DC. Press SELECT button momentarily to select AC.
Beep-Jack™ Input Warning
The meter beeps to warn the user against possible damage to the meter due
to improper connections to the µA, mA, or A input jacks when other function
(like voltage function) is selected.
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Caution
Discharge capacitors before making any measurement. Large value
capacitors should be discharged through an appropriate resistance load
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Caution
When measuring a 3-phase system, special attention should be taken to
the phase-to-phase voltage which is significantly higher than the phase-
to-earth voltage. To avoid exceeding the voltage rating of the protection
fuse(s) accidentally, always consider the phase-to-phase voltage as the
working voltage for the protection fuse(s).