358 Series dual valve pressure controllers
PCD-Series Dual Valve Absolute and Gauge Pressure Controllers use two proportional valves to precisely control the absolute or gauge pressure of gases within closed or dead-ended volumes.
Fast & accurate. Custom valve sizing and PID tuning ensure controllers reach pressure setpoints in milliseconds and maintain control with NIST-traceable accuracy to ±0.125% of full scale.
Efficient, versatile control. Maintain absolute or gauge pressure immediately upon powering up, with readings displayed in your choice of engineering units. Additionally, the second proportional valve exhausts excess pressure only when needed to maintain your setpoint, eliminating the need to continuously bleed costly gas.
Easy integration. Custom process ports and electrical connectors, and your choice of EtherNet/IP, EtherCAT, DeviceNet, Profibus, Modbus (RTU and TCP/IP), or serial communications for easy integration into your industrial process.
| Accuracy | ± 0.25% of full scale High Accuracy Option : ± 0.125% of full scale |
| Repeatability | ± 0.08% of full scale |
| Sensor Response Time | <1 ms |
| Instrument warm-up time | < 1 s |
| Operating temperature | -10 to +60 °C |
| Analog signals options | 4–20 mA, 0–5 VDC, 1–5 VDC, 0–10 VDC |
| Digital signals options | S-232 serial (default) RS-485 serial, Modbus RTU (over RS-232 or RS-485 serial), Modbus TCP/IP, DeviceNet, EtherCAT, EtherNet/IP, PROFIBUS |
| Electrical Connection Options | 8-pin mini-DIN by default, 8-pin M12, DB-9, DB-15, 6-pin locking |
| Maximum common mode pressure for differential pressure models | ≤ 6,9bar models: 13,7 bar 34,4 bar models: 51,7 bar |
| Materials | 303, 304, and 316L stainless steel; FKM, alumina ceramic, glass, gold, heat-cured epoxy, heat-cured silicone rubber, polyamide, glass reinforced polyphenylene sulfide, silicon |
| Connections | 1/8′′ NPT female Options : Compression, face seal, push-to-connect, BSPP, SAE, or Swagelok® (including tube, VCO®, and VCR®-compatible). |