User manual

A-8
Appendix A MC-III™ EXP Flow Analyzer
3. Connect the adapter cable to the RS-485 port on the MC-III EXP main circuit board (Figure A.6, page A-5).
4. Connect the plug connector to an RS-485 converter cable (Figure A.5, page A-4), if applicable (black wire to
negative terminal).
TB2
4-20
OUT
RS-485 SLAVE
–
+
–
+
USB
CONNECTOR
PULSE
OUT
Figure A.10—Wiring of NuFlo USB adapter (required only when purchased as a kit)
5. If the USB port will not be used immediately, nest the blanking plug inside the union nut and screw the
union nut onto the adapter to cover the USB socket. Hand-tighten to ensure a snug connection.
Important Before using the USB adapter for the rst time, it is necessary to install a USB driver on
the computer used to run MC-III software. The driver is supplied on the MC-III software
CD provided with the USB adapter kit. For step-by-step installation instructions, insert
the CD in your computer and click the “Install USB Driver” link on the Welcome screen.
The software will install the appropriate driver that is compatible with your computer’s
operating system.