Stork Solutions

PUR-94 Advanced PID controller

Introducing PUR-94: Advanced PID Controller for Precise Process Control

The PUR-94 is a cutting-edge PID controller equipped with dual control loops for both heating and cooling applications. Powered by an auto-tuning function and Fuzzy-Logic algorithm, this controller ensures optimal performance and efficiency. Its versatility shines through customisable features, including built-in REL/OC (SSR) and/or analogue outputs tailored to your requirements. With a universal input accepting a wide range of signals such as 0/4-20 mA, 0-10V, 0-150 mV, Pt 100/500/1000, or TC (K, S, J, T, N, R, B, E), the PUR-94 adapts seamlessly to various systems. The LED display offers clear visibility, while the RS-485 port enables easy data transmission. Configure effortlessly with the local keyboard or our free S-Config software. Discover precise control with PUR-94.

Product Highlights

The PUR94 is an advanced PID controller with dual control loops for heating and cooling. It boasts an auto-tuning feature and utilises a Fuzzy-Logic algorithm for optimal performance. Depending on customer preference, it offers built-in REL, OC (SSR), or analogue output, including active current, passive isolated current, or active voltage output. The controller features a universal input that supports 0/4-20 mA, 0-10V, 0-150 mV, Pt 100/500/1000, or TC (K, S, J, T, N, R, B, E) inputs. It automatically compensates for the cold junction of thermocouple sensors and provides linearised characteristics for RTD and TC inputs. With a range of characteristic curves (linear, square root, quadratic, user-defined, and volume characteristic for cylindrical tanks), it is versatile for various process control systems. The controller includes a 24V DC / 100 mA output to power measuring transducers and facilitates data transmission through its RS-485 port for production process monitoring. Configuration is possible using the free S-Config software via the RS-485 communication port.


  • PID, Auto-tuning, Fuzzy Logic
  • Controller with a large, 20 mm high, LED display
  • Universal input: 0/4-20 mA, 0-10V, 0-150 mV, RTD or TC
  • REL / OC (SSR) outputs
  • Analogue output: active or passive, power supply output: 24V DC
  • RS-485 / Modbus RTU in standard
  • Signal peak value detection
  • Free configuration software S-Config

To download the latest datasheet click here: PUR 94

Additional information


Default Title

Send through your product enquiry

Thank you for visiting Stork Solutions.


Please fill in the form and send through your enquiry. If you are interested in multiple products then please add the details into the message section.


We look forward to receiving your enquiry.


Thank you

Stork Solutions