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Bettis EHO Electro-Hydraulic Operator (Smart)
Principais características
- Equipped with a full‑color LCD (TFT) Local Display Module that shows valve position, alarms, configuration menus, temperature, and live diagnostics.
- Provides real‑time performance insights, including valve torque curves, PST curve, operating data, alarms, and full data‑logger records through DCMlink.
- Offers over 25 built‑in alerts and alarms, complete with troubleshooting guidance displayed directly on the HMI.
- Supports Modbus, HART (HART7), and FOUNDATION Fieldbus, ensuring compatibility with plant‑wide control and asset‑management systems.
- Certified for ATEX Ex d IIB T4, IECEx Ex d IIB T4, CSA, and FM hazardous environments.
- Achieves SIL 3 (Smart EHO, spring‑return) and SIL 2 (standard EHO) safety levels per IEC 61508 / IEC 61511.
- Designed for low power consumption, enabling reliable operation at remote sites, with optional solar‑power capability.
- Optional accumulator provides stored hydraulic energy, enabling multiple actuator operation during power loss and supporting modulating control when required
- Utilizes a dependable spring-return actuator for the fail-safe stroke combined with an integral hydraulic power pack and electronic control module
- Designed as an emergency shutdown actuation solution to stop process flow upon the detection of a command signal or loss of power, protecting personnel, equipment, and the environment
- Consistently operates in challenging environments, hostile environments, and when power is challenged
- Environmental Protection: Control enclosure: IP68, Hydraulic actuator: IP67M, Motor: IP68