Yokogawa 791001 Recorder Feature Extension Unit

The Yokogawa 791001 Recorder Feature Extension Unit expands a Yokogawa chart recorder’s capabilities, enabling enhanced data recording and processing in industrial data acquisition systems. Designed for internal or module-based installation, it integrates with Yokogawa chart recorders (model-dependent) to add features such as additional inputs, improved communication options, and expanded data handling functionality. It operates on 100–240 VAC, draws 25 VA, and supports a maximum current of 0.2 A, delivering extended performance in process plants, power plants, and manufacturing facilities. Typically available as surplus or legacy components, this extension unit is used to upgrade or replace existing recorder extensions, helping maintain legacy systems and extend their useful life.