The IR33 series of universal electronic controllers from Carel are a panel mounted controller offering an updated and upgraded module to replace its IR32 predecessor. The IR33 series controllers feature two independent control loops and now with the addition of auto tuning and a real-time clock for cycle and alarm management, the IR33 range of controllers fare suitable for a range of applications.

Featuring a simple user interface with a clear LED screen and large control buttons, the controllers are easy to commission as well as coming in a standard 76.2 x 34.2mm size suitable for a 71 x 29mm panel cut out. Powered from 12 to 24 V ac/dc or by 115-230 V ac the units can also be used with transformers to for powering low voltage controllers from 110 V ac or 230 V ac.

All of the IR33 series controllers are capability of network connectivity for both monitoring and programming purposes to make the IR33 controllers truly versatile. Using the optional RS-485 series interface you can content any of the SSR, Relay or Relay/Analogue units for complete ease of use.
• Temperature input or universal input
• Relay or SSR output versions
• 2 independent control loops
• Auto-tuning PID control
• Real-time clock
• Infrared receiver and buzzer
• Plug-in terminals
• Remote Control option
• Programming key compatibility