Press Release Summary:
Designed to mount directly to top of control valve, Research ControlÂ® SRD991 uses linear connection, which mitigates hysteresis between positioner and actuator by feeding back actual position of actuator consistently and accurately. Unit is available with graphical LCD screen, 2 levels of diagnostics, and variety of protocols including HART, PROFIBUS-PA, and FOUNDATION Fieldbus H1.Â All diagnostic features can be configured and displayed by positioner DTM.
Original Press Release:
New Top-Mount Smart Valve Positioner Provides Improved Flow Control, Greater Shutoff Force
MILWAUKEE, Wis. – Badger Meter is excited to introduce its new Research Control® SRD991 top-mount valve positioner which pushes the limits of process control and optimization. The new valve positioner mounts directly to the top of a control valve with a rugged linear potentiometer.
While most valve positioners are side-mounted, the new top-mounted SRD991 uses a linear connection, which mitigates hysteresis between the positioner and actuator by feeding back the actual position of a valve actuator – faster, more accurate and more consistent than ever before. This provides significantly improved flow control.
Top-mount valve positioners should be used when the application calls for high positioning accuracy or when greater force is required over the standard actuator, such as in the case of high shutoff pressures or excess packing friction. The SRD991 top-mount positioner is available with a large amount of benefits including a LCD screen, protocols (HART, PROFIBUS-PA and FOUNDATION Fieldbus H1) and two levels of diagnostics. All the diagnostics features can be easily configured and displayed by the positioner DTM. Moreover, the Positioner DTM enables a complete health report of the valve with full configuration and diagnostics data. The simple installation and setup of the SRD991 positioner allows an easy upgrade of any BLRA pneumatic positioner.
• Graphical LCD display
- Easy to operate
- Multilingual full-text menu
- Local parameter configuration
- Real-time status and diagnostic messages
• Advanced diagnostics
- Predictive valve maintenance
- Valve signatures
- Online friction
• Partial stroke test (PST) for emergency shutdown applications
• Network protocols & connectivity
- HART Protocol with only 420 Ohms load
- PROFIBUS-PA acc. to IEC 1158-2 based on FISCO
- FOUNDATION Fieldbus H1 acc. to IEC 1158-2 based on FISCO with PID, AO, 2xDI, DO function blocks and LAS functionality
For more information visit http://www.badgermeter.com/Flow-Instrumentation/Control-Valves/Valve-Positioners.htm.
About Badger Meter
Badger Meter is an innovator in flow measurement and control products, serving water utilities, municipalities, and commercial and industrial customers worldwide. The company's products measure water, oil, chemicals, and other fluids, and are known for accuracy, long-lasting durability and for providing valuable and timely measurement data. For more information, visit www.badgermeter.com.