Version Upgrade for DT4281 and DT4282
V2.01 Sep 30, 2026
- If you are unable to download software, please check the following:
- Please register a my HIOKI account and then use it to log in to the my HIOKI service.
| Application (InstallerVUP4DT.zip) | |
|---|---|
| Version Upgrade Procedure (DT428xVersionUpgradeProcedure.pdf) | |
| USB driver (PL23XX_Prolific_DriverInstaller_v4210.zip) |
If you are unable to download the files, please check the following.
・Please register for my HIOKI and log in through my HIOKI.
- Important -
○The software posted here is provided free of charge and represents the best version currently available.
○If any malfunction occurs as a result of downloading and installing this software, please contact your nearest sales office.
○All ownership rights, intellectual property rights, and any other rights related to this software belong to our company.
○Never turn off the instrument during the version upgrade. Also, do not disconnect the USB cable. If the power is turned off or communication is interrupted, the instrument may stop operating normally and require repair.
○Please use the latest version of the instruction manual.
Version upgrade procedure
For the version upgrade procedure, please download the “Version Upgrade Procedure.”
The dedicated communication adapter included in the DT4900-01 Communication Package (USB) is required for the version upgrade.
※If you are using instrument firmware earlier than V2.00, the version upgrade is not required (it cannot be upgraded).
Version Upgrade History
V2.01 (September 2026)
Bug Fix
・Fixed an issue in which the instrument would hang up when the “:SYST:RST” command was sent via USB communication with the DT4900-01 connected.
Operating Environment
Supported OS: Windows 11
Display: Resolution of 1024 × 768 or higher
Hard Disk: 500 MB or more of free space
Communication Interface: USB 2.0 (Virtual COM Port)