Amprobe AM-140-A - Manual (Page 17)

11
� Warning
When measuring a 3-phase system, special attention should be taken to
the phase-to-phase voltage that 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).
PC-COMM computer interface capabilities
The instrument equips with an optical isolated interface port at the meter
back for data communication. Optional purchase PC interface kit USB-KIT3
is required to connect the meter to the PC computer. The USB-KIT3 Data
Recording System software equips with a digital meter, an analog meter,
a comparator meter, and a Data Graphical recorder display. Refer to the
README file in the interface kit for further details.