Carel IR33Z7HR20 universal PID controller with four outputs

The Carel IR33Z7HR20 is an advanced universal controller with all the features already found in the previous IR32 series plus new and improved features such as automatic PID tuning, clock and time group control. The controller has a simple user interface, while additional symbols and navigation menus have been added to the display, making the user interface even more user friendly.

The IR33 platform controllers form a complete product range with an integrated electronic microprocessor with LED display, designed especially for the control of stand-alone refrigeration units. These controllers are particularly suited to applications that require high switching performance, a large number of outputs, functions and control with direct keypad input, high IP front panel protection, as well as a compact form factor that significantly reduces overall dimensions. The large number of models produced provides the best solution for each application at the most competitive price. The Carel IR33 universal features a display that includes 3 digits with decimal point, minus sign and icons to simplify reading values and checking operating status.

Other features and functions of Carel IR33 controllers:

• easy and quick installation in a panel or on a DIN rail
• different operating modes: direct, reverse, neutral zone
• 1 or 2 programmable/selectable inputs
• iR33 platform controllers can be networked with a higher-level monitoring system
• buzzer