p/Q amplifier


p/Q amplifier

The p/Q amplifier is comprised of a base card with front panel containing the valve amplifier for 4WRPH6 with closed loop pressure controller. When used with the appropriate servo solenoid valves and pressure sensors, this unit can be employed for controlling flow and pressure in a closed-loop control circuit. The input parameters are the setpoints for pressure p and flow Q.


  • Suitable for actuating directly operated and pilot operated servo solenoid valves
  • Analog amplifiers in Eurocard format for installation in 19" rack
  • Output stage with closed-loop control
  • Rapid energizing and de-energizing for fast response times
  • Enabling input
  • Short-circuit-proof outputs
  • External control shutoff
  • Open-circuit detectin for feedback signal cable and pressure sensor
  • Suitable for pressure sensors (1...6 V, 0...10 V, 4...20 mA)
  • Closed-loop position control with PID action

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