Yokogawa UT150-RR/RS Digital Temperature Controller

Product Description

The Yokogawa UT150-RR/RS is a compact, panel-mount digital temperature controller from the UT100 series, engineered for reliable single-loop temperature regulation in industrial heating and cooling systems. Designed for high measurement accuracy and stable control behavior, it supports a wide range of sensor inputs and output configurations, making it suitable for diverse process environments.

This controller combines advanced PID algorithms with automatic tuning and overshoot suppression logic, ensuring fast response and minimal temperature deviation during startup or load changes. Its 1/16 DIN enclosure allows installation in space-restricted control panels while maintaining clear visibility of both process value and setpoint.

Key Characteristics

The Yokogawa UT150-RR/RS integrates measurement, control, alarm handling, and communication functions into a single compact unit. The front panel is sealed to IP65, supporting use in dusty or splash-prone industrial areas. RS-485 communication enables connection to PLCs, HMIs, and supervisory systems for centralized monitoring and parameter management.

Technical Specifications

Model: UT150-RR/RS
Series: Yokogawa UT100
Control Type: Single-loop temperature control

Control Functions

• PID control with auto-tuning
• ON/OFF control mode
• Heating or cooling operation
• Overshoot suppression control logic

Input Signals

• Thermocouples: K, J, T, E, N, R, S, B, L, U, PL-II
• RTDs: Pt100, JPt100
• DC voltage inputs:
  0–100 mV, −10 to 20 mV, 0.4–2 V, 1–5 V, 0–10 V

Outputs

• Relay contact output
• Voltage pulse output for SSR drive
• Analog current output 4–20 mA DC
  Supports time-proportional or continuous PID depending on output type

Performance

• Indication accuracy: ±0.3% of span (typical)
• Control cycle time: 500 ms
• Setpoint capacity: 2 selectable setpoints
• Dual 4-digit LED display for PV and SP

Alarm and Safety Functions

• Heater burnout detection (with compatible wiring)
• High/low alarm functions configurable by parameter

Communication

• Interface: RS-485
• Protocol: Yokogawa standard
• Baud rate: up to 9600 bps

Electrical and Mechanical

• Power supply: 24 V AC/DC
• Mounting size: 1/16 DIN
• Dimensions:  48 × 48 × 100 mm
• Front panel protection: IP65

Typical Applications

The UT150-RR/RS is commonly deployed in applications requiring stable and repeatable temperature control, including:

• Industrial furnaces and kilns
• Ovens and dryers
• Packaging and sealing machines
• Plastic and rubber processing equipment
• Laboratory and test chambers

Frequently Asked Questions

Can the UT150-RR/RS be used with different temperature sensors?
Yes. It supports a wide selection of thermocouples, RTDs, and DC voltage inputs, configurable through parameters.

Is it suitable for networked control systems?
Yes. The RS-485 interface allows integration with PLCs, SCADA systems, and operator panels.

Does it support both heating and cooling control?
Yes. The controller can be configured for heating or cooling applications depending on wiring and output selection.