Yokogawa Electric Corporation UT550-04 Temperature Controller

The Yokogawa UT550-04 Temperature Controller is a PID-driven device engineered for industrial control systems to regulate and maintain precise process temperatures, delivering stable thermal profiles essential for consistent production output in heating equipment, furnaces, and process control panels. It accepts universal input types (thermocouple or RTD), presents a digital PV/SV display, and provides model-dependent outputs such as relay, voltage pulse, or current, all powered from 100–240 VAC and designed for panel-mount installation in control cabinets and equipment housings. Common applications include manufacturing lines and automated production equipment where accurate temperature regulation is critical; its multi-alarm capability supports reliable process monitoring, while optional communications facilitate integration with other control devices and SCADA systems. The UT550-04 (MPN UT55004) is a common replacement option for Yokogawa UT55A and UT35A, making it a practical choice for retrofit, expansion, or replacement projects to help maintain equipment performance.