Emerson Exchange 365
Blogs
    • 23 Mar 2018

    Enabling Safer Operator-Machine Interactions through Enhanced Control of Machine Stoppages

    Authors: Enrico De Carolis , Mike Johnson As packaging line machinery has become more sophisticated, it’s also become more complex. This increased complexity, coupled with a high number of interactions between operators and machines, increases ...
    • 14 Mar 2018

    Digital Transformation for Safe Operations

    One of the big topics last week at CERAWeek 2018 was the role technology can play to improve business performance—especially in areas such as safety, reliability and efficiency. These advancing technologies coupled with improved work practices can deliver a digital transformation to companies that undertake this journey. At this week’s Safety Case Symposium 2018 Singapore conference, Emerson’s Jonas Berge...
    • 15 Jan 2018

    Adding Wireless Level Switches for Storage Tank Overfill Prevention

    Storage tanks holding volatile fluids must have reliable level measurements to avoid unsafe overfill conditions. A Control Engineering Asia article, Wireless vibrating fork technology enables Hengyang Petrochemical to implement cost-effective overfill prevention solution , describes how this petrochemical producer sought to reduce the risk of overfill conditions. The plant had existing non-contacting radar level measurement...
    • 20 Dec 2017

    Vortex Flow Meters in Safety Instrumented Functions

    Safety instrumented systems provide a layer of protection beyond the control system to safely shutdown the process during abnormal situations. A safety instrumented function (SIF) or “safety loop” includes the sensing device, logic solver and final control element to perform safety function upon demand. Flow measurement devices are often the sensing devices in these SIFs. Some flow measurement technologies...
    • 8 Aug 2017

    Proof Testing Level Measurement Devices

    Safety instrumented systems (SIS) include the sensor(s), final control element(s) and logic solver(s) for each of the safety instrumented functions (SIFs) in the SIS. To verify the SIFs are performing the amount of risk reduction intended for their application, they must be periodically proof tested. PCN Europe magazine interviewed Emerson’s Teddy Tzegazeab on how proof testing has changed for SIFs with liquid...
    • 13 Jul 2017

    Level Sensor Safety Proof Testing

    Backing up your computer or server is a waste of time if restoring the backup fails when you need it. Good practice is to test these backups on separate test systems periodically to make sure they restore properly. Similarly, safety instrumented systems (SISs) need to assure that each safety instrumented function (SIF)/safety loop does what it’s intended to do to bring the plant to a safe state in the event of a...
    • 7 Jul 2017

    Safety Instrumented Function Valve Selection

    Valves are critical components inside of safety instrumented functions (SIFs) since they do the work of touching the process flows to bring the plant to a safe state in the event of a safety demand. In a Valve magazine article, How Valve Selection Can Impact SIS in Refining Applications , Emerson’s Janine McCormick describes the important criteria in finding the right valve for the required safety performance...
    • 30 Jun 2017

    Remote Partial Proof Testing Level Sensors

    For safety instrumented functions (SIFs), proof testing is the process of identifying undetected dangerous failures in the sensor, final control element and logic solver which comprise the SIF. Dangerous failures are those that could put the safety instrumented system (SIS) in a hazardous or fail-to-function state. If undetected, in the case of level measurements, this could lead to an overfill and spill, with potentially...
    • 2 Jun 2017

    Instrumentation Diagnostics and Safe, Reliable Operations

    As technology has advanced in power and sophistication, its ability to self-diagnose and perform predictive diagnostics has too. In a Plant Engineering article, Using diagnostic functions to improve system safety , Emerson’s Mark Menezes shares examples of how these diagnostics are used to self-diagnose instrumentation problems as well as those in the surrounding production process. He opens highlighting the...
    • 8 May 2017

    Optimizing Safety Instrumented System Proof Testing

    If you are new to the world of process safety, you quickly learn that it has its own jargon with phrases such as safety instrumented functions, proof test intervals, PDFavg, etc. A Flow Control magazine article, Ensuring safety compliance with optimized proof testing , written by Emerson’s Afton Coleman , Erik Mathiason and Tonya Wyatt does a great job of introducing and explaining these concepts. They open...