SRD991

Intelligent Valve Positioner SRD991 with HART, FoxCom, PROFIBUS-PA, FOUNDATION Fieldbus H1 or Without Communication

Manufactured by

The Intellegent Valve Positioner SRD991 is designed to operate pneumatic valve actuators and can be operated from control systems (e.g. the Foxboro I/A Series System), controllers or PC-based configuration- and operation tools such as the DTMs VALcare™ or Valve Monitor. The positioner is available with different communication protocols. The multi-lingual full text graphical-LCD (optional with infrared interface), in conjunction with the 3 push buttons, allows a comfortable and easy local configuration and operation. For installations in contact with explosive atmospheres, certificates are available.

MAIN FEATURES

• Intelligent
• Auto-start with self-calibration
• Self diagnostics, status- and diagnostic messages
• Easy local operation with three key pads
• Multi-Lingual full text graphical LCD, or LEDs
• VALcare™ or Valve Monitor DTM for valve diagnostics and predictive maintenance with communication
• HART, FOUNDATION Fieldbus H1, PROFIBUS-PA, FoxCom
• Configuration by means of local keys, handheld terminal (HART), PC or I/A Series system or with an infrared interface by means of IrCom without communication
• Input signal 4 to 20 mA
• Stroke 8 to 260mm(0.3 to 10.2 in)
• Angle range up to 95 ° (up to 300 ° on request)
• Supply air pressure up to 6 bar (90 psig), with spool valve up to 7 bar (105 psig)
• Single or double-acting
• Mounting on linear actuators according to NAMUR
• IEC 534, Part 6 – VDI/VDE 3847
• Mounting on rotary actuators acc. to VDI/VDE 3845
• Protection class IP 65 (IP 66 on request), NEMA 4X
• Approved for SIL applications
• Explosion protection: Intrinsic Safety according to ATEX and FM/CSA
•  

OVERVIEW

The SRD991 consists of a basic device with a digital controller that supports different communication protocols (or also simply 4-20 mA input). Into this basic device, additional equipment can be built such as plug-in cards for electrical input/output signals, position feedback and pressure sensors. The pneumatic part is available in different versions (single/double acting or spool valve). For very large actuators, boosters with increased air capacity can be flanged on. Also, different manifolds for connection of gauges can be flanged on. For the pneumatic screw connections we offer different threads in the housing and adapters. The device can be configured locally by means of push buttons and LCD / LED, or with PC + EDC82 Modem connected to the service plug of the SRD991. By means of communication the device can be configured remotely or with IrCom + PC (Infrared Interface at approx. 0.5 m). A large variety of attachment kits for all common valves and actuators are available. The list is updated continuously and can be found on the Internet under http://www.foxboro-eckardt.com/products/positioners_en.html For high temperature or high vibration application, we recommend to mount the SRD991 remotely and not directly on the valve. For this, use the potentiometer unit (like the SRI990 - TXQxxxxx - H).

Supplied by DP-Flow