UT3500 series
User Manual
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2. In the device manager on the computer, it will be prompted as "other devices". At this
time, you need to install the driver.
3. You need to download the CH340 driver (you can download it from the browser by
yourself). The file is: CH341SER.EXE. Click [Install], and the "Driver Installation Succeed"
window will appear after the installation is complete.
4. Open the device manager on the computer. After the driver installation on Windows is
complete, a port number COM17 will appear, as shown in the red box in the figure. This
port number needs to be recorded and used for communication.
10.4 Communication Protocol
The instrument supports 2 communication protocols: SCPl and Modbus (RTU).
SCPI Protocol:
SCPI is the abbreviation of English Standard Commands for Programmable Instruments.