Keysight recommends using the most current version, which includes the most up-to-date bug fixes and security patches available.
Release Date Version Version Description
2015-11-26 3.00 Update to fix U1231A/U1232A/U1233A miscellaneous bugs.
Release Date Version
2015-11-26 3.00
Version Description
Update to fix U1231A/U1232A/U1233A miscellaneous bugs.

How to Download

  1. Unzip the zip file to a folder.
  2. Go to folder PL23XX_Prolific_DriverInstaller_v202, click on the PL23XX-M_LogoDriver_Setup_v202.Exe to install the U1173B IR-USB cable driver.

How to Install

  1. Connect the multimeter to your PC via the U1173B IR-USB connectivity cable and turn on the multimeter.
  2. Go to Start > All Programs > Keysight Technologies > Keysight U123xA Firmware Update > Keysight U123xA Firmware Update Software (Version 3.00).
  3. Click “Auto Search COM Port” button to search and detect the unit. The model number, serial number and current firmware version of the multimeter will be displayed in the “Model Number”, "Serial Number" and "Current Version" field.
  4. Make sure the instrument is in connected status before you start firmware update. Click “Upload Firmware” to start firmware update.
  5. The multimeter will reset and recover itself after the firmware update.
  6. Reset the multimeter to its Default values through the setup menu (refer to User's Guide page 96). This step is mandatory.
     

Licensing

  • Does Not Require a License

Installs on: Instrument

Operating System

  • Windows 7
  • Windows Vista
  • Windows XP
  • Windows 2000

Prerequisites

  • System Requirements: Intel Pentium 4, 1GHz or equivalent, 512MB RAM, 1GB HDD free space
    Operating Systems: Windows 2000 SP4, Windows XP SP3, Windows Vista SP2, Windows 7 SP1
    Required accessory: U1173B IR-USB Connectivity Cable

Supported Instruments

  • U1231A, U1232A, U1233A
No previous versions available
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