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The EWM-PQ-AA has been developed as a classic p/Q controller but it work well also with high response valves via an analogue command input for pressure and flow. The p/Q controller automatically switches between Q and p control modes to assure that the set point limits for P has not to exceed. The pressure feedback is analogue type. The card use the RS232C interface, and is settable via notebook, using the software kit EWMPC.
| Description | Units |
|---|---|
| Power Supply | 12 ÷ 30 V DC Ripple Included External Fuse 1.0 A |
| Current Consumption | 100 mA |
| Command (Pressure) Value | 0 ÷ 10 V (Rι = 33 kΩ) 4 ÷ 20 V (Rι = 250Ω) |
| Speed Input (Q Input) | 10 (Rι = 90 kΩ) |
| Feedback Value | 0 ÷ 10 V (Rι = 33 kΩ) 4 ÷ 20 V (Rι = 250 Ω) |
| Output Value - E0 Version | 10 (Max Load 5 mA) |
| Output Value - E1 Version | 4 ÷ 20 V (Max Load 390 Ω) |
| Sensor Resolution for Command and Feedback Value and For Speed (Q) Input | 0.012% |
| Interface | RS 232 C |
| Electromagnetic Compatability (EMC) 2004/108/EC | Immunity EN 61000-6-2 Emissions EN 61000-6-4 |
| Housing Material | Thermoplastic Polymide PA6.6 Combustibility Class V0 (UL94) |
| Housing Dimensions | 120 (d) x 99(h) x 23 (w) mm |
| Connector | 4x4 Poles Screw Terminals - PE Direct Via DIN Rail |
| Operating Temperature | -20 / 60 °C |
| Protection Degree | IP 20 |
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