Pneumatic valve positioner VSD

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Valvescan Type VSD CF8M (316) stainless steel ATEX / IECEx dual Certified Ex d valve controller is an integrated valve information device for Emergency Shutdown (ESD) valves. Combining valve position monitoring and full stroke test (FST) or partial stroke test (PST) functionality, the VSD unit is an information hub for the ESD valve, enabling plant operators to verify the capabilities of the most critical valves in their installations without having to significantly modify existing operating methodologies IP.66/67 CF8M (316) stainless steel enclosure for superior corrosion protection and mechanical resistive properties (Optional: CF3M (316L) stainless steel and coated anodised aluminium). ATEX / IECEx Dual Certified II 2 GD / Ex d (ia) IIC T4/6 flameproof for zone 1 & 2 hazardous areas. Valve position by a continuous feedback transmitter and/or discrete switches / sensors (mechanical or proximity). Full or partial stroke test functionality with local or remote initiation. Various protocols can be used to communicate with the VSD including HART, Modbus and Bluetooth (Optional: Foundation Fieldbus). Up to 6 conduit entries for easy connection options. Smart calibration allows easy installation and configuration. Stored valve stroke profile (initial ‘as new’ signature and ‘last operation’ signature) allows a predictive maintenance regime to be effected (Optional: Extended memory for storing all ESD valve signatures). Low power requirements. IEC 61508 / 61511 functional safety certified SIL1 to 4. A screw-on cover ensures secure isolation of electrical components.