Overview
Emerson Process Management offers Rosemount and Micro Motion instrumentation to ensure plant compliance with IEC 61511 Safety Instrumented Systems (SIS) while maximizing profitability. These instruments help reduce costs and maintain flexible production levels.

Compliance and Certification
IEC 61511 allows for two methods of sensor qualification: certification to IEC 61508 or using sensors with a proven history of safe operation (prior-use). Emerson supports both methods, providing sensors that are either certified or have a proven track record.

SIS System Components

• Certified SIS System: The DeltaV™ SIS system includes scalable logic solvers, integrated configuration software, and digital communications, along with AMS™ Suite for documentation and archiving.
• SIS Sensors: Rosemount and Micro Motion sensors offer stability and reliability, reducing costs and increasing uptime through improved performance and simplified compliance.
• SIS Final Control Elements: Utilizing Bettis®, Hytork®, and FieldQ® pneumatic valve actuators and Fisher® FIELDVUE® digital valve controllers, these elements provide diagnostics to extend proof-test intervals.
• SIS Services: Emerson offers professional safety personnel and service teams to help comply with safety standards and optimize SIS throughout its lifecycle.

Smart SIS Integration
Emerson's smart SIS extends the PlantWeb® digital plant architecture, using digital intelligence and diagnostics from sensor to logic solver to final control. This approach offers automated safety-loop testing and advanced diagnostics, increasing system availability and reducing life-cycle costs.

Prior-Use and Certified Sensors

• Prior-Use Sensors: Rosemount and Micro Motion devices have billions of safe operational hours, supported by third-party documentation, providing confidence for safety systems.
• Certified Sensors: Emerson offers industry-leading pressure, temperature, flow, and density safety-certified sensors, meeting IEC 61508 standards for SIL 2 & 3 applications.

Benefits

• Cost Reduction: Both prior-use and certified sensors lower costs through reliability and performance.
• Ease of Use: Familiarity with hardware and procedures reduces installation and validation costs.
• Simplified Compliance: Emerson simplifies documentation for IEC 61511 compliance with online access.
• Maximized Uptime: Sensors offer superior stability and reliability, with proof-test requirements every 5 years and calibration every 10 years.

Conclusion
Emerson's Rosemount and Micro Motion sensors provide reliable and cost-effective solutions for SIS applications, ensuring compliance and enhancing plant safety and profitability.