Red Lion Controls P48 PID Controller - Process

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Red Lion Controls P48 PID Controller - Process

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Quick Overview

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The Red Lion Controls P48 PID Controller accepts either a 0 to 10 VDC or a 0/4 to 20 mA DC signal, precisely displays the input process signal according to the programmable scaling points, and provides an accurate output control signal (time proportional or linear DC) to maintain the process at the desired control point. The controller’s comprehensive yet simple programming allows it to meet a wide variety of application requirements.

In the PID control mode the controller operates with on-demand auto-tune, which will establish the tuning constants. The PID tuning constants may be fine-tuned by the operator at any time and then locked out from further modification. The controller employs a unique overshoot suppression feature, which allows the quickest response without excessive overshoot. The unit can be transferred to operate in the manual mode, providing the operator with direct control of the output. The controller may also operate in the ON/OFF control mode with adjustable hysteresis. A second setpoint is also available to allow quick selection of a different setpoint setting.

Dual 4-digit displays allow viewing of the process and setpoint simultaneously. Front panel indicators inform the operator of the controller and output status. On some models, the main control output and the alarm outputs are field replaceable.


  • 50 mm x 50 mm
  • Dual 4 Digit Display, 0.4" (10 mm) Red and 0.3" (7.6 mm) Green
  • Relay, SSR Drive, Triac Outputs
  • Linear DC Outputs

Ram Meter carries the Red Lion Controls P48 PID Controller - Process in addition to a full line of Temperature Displays & Controllers products. For questions about the Red Lion Controls P48 PID Controller - Process and other products, or for custom and large orders call us at (800) 446-4035 or contact us online.

Additional Information

Manufacturer Red Lion Controls
Model Number P48
Spec Sheet Red_Lion_Ctrls_P48_Specs.pdf
Input Process
Display Digital
Mounting Panel Mount
Power ACV, DCV
Additional SKUs P4800001, P4800011, P4810000, P4810010, P4810101, P4810111, P4810105, P4810115, P4810107, P4810117, P481010A, P481011A, P4811100, P4811110, P4811102, P4811112