From single to multi-point control, Red Lion has the right PID controller for any application. Red Lion provides a wide range of proportional-integral-derivative (PID) controllers that are rugged, reliable and easy to deploy. Our PID controllers offer industry-leading features and reliable performance designed for the most demanding applications.
Panel Mount
PAX®2C
The Red Lion PAX®2C PID controllers offer universal inputs, including thermocouples, RTDs, process signals, DC current/voltage and resistance. Available in 1/8 DIN size models, PAX2C controllers work with field-installable option cards to seamlessly support changing applications and upgrade requirements. Learn more.
PXU
Red Lion’s PXU enables tighter, more reliable control over a wide range of processes from a single PID controller. Available in 1/16, 1/8 and 1/4 DIN size models, the PXU accepts process, thermocouple and RTD signals and presents values on one of the industry’s largest dual displays. Available options include DC analog control, RS-485 communication and user inputs. Learn more.
DIN Rail Mount
Graphite®, FlexEdge® and Modular Controller
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The FlexEdge and Graphite platforms and Modular Controller series allow users to seamlessly integrate multi-zone PID control, data acquisition and I/O into PC, DCS or PLC control systems. Stack hot swappable modules together for a space saving solution. Available features include protocol conversion, virtual HMI, advanced web server, SQL query and cloud connectors.
| Model | PXU | PAX2C | Modular Controller | Graphite® Platform | FlexEdge® Platform | |
| Size | 1/16 DIN 1/8 DIN 1/4 DIN |
1/8 DIN | DIN Rail | Various Panel and DIN Rail |
DIN Rail | |
| Display Capability | ✓ | ✓ | ✓ | Virtual | ||
| Universal Signal Input | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Single Loop | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Dual Loop | ✓ | ✓ | ✓ | ✓ | ||
| Multiple Loop | ✓ | ✓ | ✓ | ✓ | ||
| Heater Current Monitor | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Remote Setpoint | ✓ | ✓ | ||||
| Ramp/Soak Capability | ✓ | ✓ | ✓ | ✓ | ✓ |
For possible replacements of discontinued models, please see our Product Replacement Guide.
