CAREL IR33 Universal Temperature Controller 4 SSR Output

The CAREL IR33 Universal Electronic Controller is the advanced successor to the IR32 range, delivering enhanced functionality for precise temperature management in a variety of commercial and industrial applications. This versatile controller supports a range of sensor inputs, including PT100, J and K type thermocouples, DC voltage and DC mA signals, making it suitable for diverse system configurations.

With two independent control loops, this device enables simultaneous regulation of separate zones or processes, improving efficiency and control accuracy. The auto-tuning PID control optimises performance automatically, reducing setup time and ensuring stable, reliable operation. A built-in real-time clock allows for the management of working cycles and the logging of alarms, supporting proactive maintenance and operational scheduling.

Designed for usability, the controller features a simple and intuitive user interface, alongside an infrared receiver and buzzer for convenient local interaction and alerts. Housed in a compact panel-mounting enclosure, this unit fits neatly into existing panels, while plug-in terminals simplify installation and maintenance.

Connectivity is enhanced through an optional RS-485 serial interface, enabling network-based monitoring and programming, which is ideal for larger installations requiring centralised oversight. The controller operates on a versatile 12 to 24 V AC/DC power supply, accommodating various electrical setups. With four SSR (Solid State Relay) outputs for robust load control, the CAREL IR33 provides reliable temperature regulation in demanding environments.