CAL CONTROLS CAL Series PID Temperature Controller, Relay / SSR, 240V

The CAL CONTROLS CAL Series PID Temperature Controller is a versatile and reliable unit designed for precise temperature regulation in a wide range of industrial applications. It features advanced PID autotune functionality, which automatically calibrates the Proportional, Integral, and Derivative settings to match your specific process, ensuring optimal control and stability from the outset.

A bright 4-digit LED display provides clear visibility of readings, which can be configured to show temperature in either degrees Celsius (°C) or Fahrenheit (°F). The unit also supports engineering units with adjustable zero and span settings for custom scaling. Intuitive, positive-feel buttons and a user-friendly menu system make initial setup and ongoing adjustments quick and straightforward.

This controller offers selectable inputs, compatible with various thermocouple types (B, E, J, K, L, N, R, S, T) as well as RTD/PT100 sensors and linear process signals. It supports dual output and heat/cool operation, with both a 2A relay output and a solid-state relay (SSR) driver output (4.25–5VDC) for flexible integration into your system. The ramp/soak function allows for controlled warm-up phases and timed temperature holds, perfect for processes requiring precise thermal profiles.

Housed in a robust casing with an IP66/NEMA4 rated fascia, it is protected against dust and water jets, making it suitable for demanding environments. The unit is CE compliant, UL Recognised, and CSA approved, meeting international safety standards. Its compact sleeve mounting design facilitates easy installation, servicing, and the potential future addition of communication boards.

Ideal for use in ovens, incubators, environmental chambers, and industrial machinery, this controller provides accurate and dependable temperature management for critical processes.