HIOKI DT4900-01 Multimeter USB Communication Package | Optical communication with electrical isolation, USB cable L1003 included, for DT4250／DT4280 series and DT4261

Overview

In electronics R&D labs, semiconductor plant inspections and quality verification (QA/QC) workflows, recording multimeter readings by hand is inefficient, and missed or mistyped readings can undermine the credibility of an entire set of test data. The genuine authorized HIOKI (Japan) product DT4900-01 communication package (communication adapter and USB cable L1003; software downloaded free from the HIOKI website) is a data digitization solution designed for HIOKI high-end digital multimeters (such as the DT4250/DT4280 series).

The package uses optical communication to electrically isolate the PC from the multimeter. With DMM Communicator, downloaded free from the HIOKI website, readings can be monitored in real time, plotted as graphs and saved as CSV.

Key Technical Specifications

Electrical Isolation and USB Connection

• Optical isolation protection: Signals are converted and transmitted optically, breaking the physical electrical connection between the PC and the multimeter, so the PC is protected even while the multimeter measures high voltage or large current.
• USB 2.0 (virtual COM port): Supports Windows 10／11; USB cable L1003 (0.9 m) included.

PC Software and Analysis Functions

• Real-time trend plotting and logging: DMM Communicator plots voltage, current, resistance or temperature data from the multimeter as a time-versus-value trend graph, making intermittent small voltage dips or temperature drift easy to spot.
• CSV export: Measurement data can be saved as CSV or pasted into Excel for analysis.

Compatible Models

• Compatible models: DT4250 series (DT4252, DT4253, DT4255, DT4256, etc.), DT4280 series (DT4281, DT4282) and DT4261. DMM Communicator software is downloaded free from the HIOKI website and supports Windows 10／11.

Applications

• Electronics R&D and stress testing: Long-duration temperature rise tests of power supplies (SPS); logging component aging data on circuit boards.
• Plant facilities and preventive maintenance: UPS voltage monitoring; power logging of plant equipment.
• Quality verification (QA/QC) and compliance acceptance: No manual transcription; provides raw data records with timestamps.