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3. Communicating with PC via USB
The USB cable can be connected/disconnected even if the power to the instrument is ON. However, in this manual,
the power must be turned OFF before connecting the USB cable.
[Connecting Method]
1. Set the POWER switch to OFF(O).
2. Connect the USB cable to the USB port on the in-
strument.
3. Check that the USB cable’s plug is fully inserted and
connected firmly.
● Use the USB cable IF-A18 of optional accessory.
● When disconnecting the USB cable, pull it by holding the plug. Never
pull the cable by its cord.
● Pay attention to the shape of the USB cable’s plug and make sure that
the correct USB plug is connected to the USB port on the instrument.
● If the computer has two or more USB ports, the USB cable can be
connected to any of them.
● When it uses at the same time with other machines, it doesn't some-
times work normally.
<Notes on Communication via USB>
● One computer can control up to five instruments.
● If you want to control more than two instruments from one computer via both RS-232C and USB, connect only
one instrument via USB. It is not possible to control instruments via RS-232C, when you connect two instru-
ments or more via USB.
4. Remote Measurement
In remote measurement mode, the instrument is controlled from the computer.
[Operating Procedure]
1. Press the REMOTE key.
The REMOTE LED will light up, indicating the instrument is ready for remote measurement (i.e. ready for
communication via RS-232C or USB).
USB port
USB cable
RS-232C cable or USB cable
REMOTE LED