The IR33Z7HR20 is a panel-mounted PID temperature controller from Carel’s IR33 series
The IR33Z7HR20 is a panel-mounted PID temperature controller from Carel’s IR33 series, designed for HVAC and refrigeration systems that demand precision and flexibility.
Key Features
Power Supply: Operates on 115–230 V AC, suitable for a wide range of installations
Sensor Inputs: Compatible with NTC, PTC, and Pt1000 sensors for accurate temperature monitoring
Outputs:
4 relay outputs
4 digital outputs
Ideal for managing multiple stages or devices
Real-Time Clock (RTC): Supports time-based control and alarm logging, even during power outages
Auto-Tuning PID: Automatically adjusts control parameters for optimal performance
Infrared Remote Capability: Allows remote access to main functions and configuration settings
User Interface: Clear LED display with large buttons for easy setup and operation
