Functional Overview

The UT150-RR/RS is a precision digital PID controller designed for thermal process management in industrial and laboratory applications. It delivers accurate temperature control for heating cycles, drying ovens, and incubators. The RR designation indicates dual-relay outputs, allowing simultaneous control of primary and auxiliary devices, while the RS suffix provides RS-485 serial communication, enabling remote monitoring, setpoint adjustments, and integration with SCADA or DCS systems. Advanced PID algorithms minimize overshoot, stabilize process variables, and ensure repeatable thermal performance.

Technical Specifications

Performance Comparison

Compared to the base UT150, the UT150-RR/RS provides:

• Remote connectivity via RS-485 for plant-wide monitoring and data logging

• Dual-relay outputs for complex control scenarios, such as primary heating plus secondary alarms

• Enhanced PID control with auto-tuning, reducing overshoot and improving stability

These enhancements make it suitable for distributed thermal control networks or applications requiring both local and remote supervision.

Frequently Asked Questions

Can the UT150-RR/RS be calibrated for non-standard sensors?
The controller supports standard thermocouple and RTD types via internal software. Non-linear or custom sensor curves require external signal conditioning.

What is the maximum distance for the RS-485 connection?
RS-485 communication can extend up to 1,200 meters with proper termination resistors to prevent signal reflection.

Is the auto-tuning feature effective for all thermal loads?
Auto-tuning works well for most standard heating loads. Systems with extreme thermal lag or multi-stage dynamics may require manual PID adjustment for optimal stability.