CTH | Industrial controls

SRD991 – Intelligent Valve Control – Intrinsically Safe (Ex ia)

The SRD991 offers the most advanced technology available on the market today. This includes a start-up in two steps only and a multilingual full-text graphic LCD for configuration and operation.

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Description

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The SRD991 offers the most advanced technology available on the market today. This includes a start-up in two steps only and a multilingual full-text graphic LCD for configuration and operation. These are all available within the various process automation applied communication protocols.

The SRD991 offers enhanced applications and methods to analyze recorded stroke data. All the diagnostic features can be easily configured and displayed by the Positioner DTM (VALcare).

For application that do not allow leakage to occur, using bellow seal valves, Fugitive Emission Monitoring is the solution to avoid any serious emission from the packing (In conjunction with a pressure switch gauge, the positioner is able to detect any damaging leakage).

For the world of small actuators, the Top mounting positioner is designed for direct mounting on top of small actuators without yoke – Instead of the rotary potentiometer, a linear potentiometer is used that feeds back the actual position of the actuator.

Benefits

User friendly, menu-driven multilingual full text graphical LCD for local configuration

Advanced/Premium Diagnostics for valve Predictive Maintenance/valve signature and on-line friction

Easy mounting on any type of linear and rotary actuators

Available in HART, PROFIBUS-PA and FOUNDATION FIELDBUS H1 protocols

Suitable for safety applications up to SIL 3

Partial Stroke Testing (PST) for emergency shutdown applications

Modular concept with Plug and Play options (position feedback, limit switches, DO & DI)

Special corrosion resistant design (stainless steel 316) for offshore and Food &Beverage applications

Top Mounting version specially designed for very small control valves (diaphragm or angle seats valves)

Certified Ex ia/ IS according to ATEX, FM, CSA, EAC, NEPSI and INMETRO

Applications