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Posts Tagged ‘level switch’

Reducing Level Detector Proof Testing Complexity

Posted in Level, Safety on Tuesday, July 16th, 2019. No comments yet
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Each safety instrumented function (SIF) including its sensor, logic solver and final control element must be periodically tested to make sure it will perform as designed in the event of a safety demand. These “proof tests” help to uncover and failure conditions which may have developed since the last proof test or safety demand. A […]

Improving Safe Operations with Wireless Vibrating Fork Level Switches

Posted in Level on Wednesday, June 29th, 2016. One comment so far
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Level measurements can be some of the most important measurements for the safe operations of applications such as tank farms, boilers, pump control and more. Level measurement is a key part of monitoring and control strategies as well as safety instrumented functions. In a Process Worldwide article, How Wireless Vibrating Fork Frequency Monitoring Improves Process […]

Diagnostics in Vibrating Fork Level Switches

Posted in Level, Wireless on Thursday, March 29th, 2012. 5 comments so far
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An Emerson Exchange 365 community post, How Level Switches with Built–In Diagnostics Reduce Maintenance Costs, alerted me to a Process Worldwide article with the same title by Emerson’s Kevin Cullen. Kevin describes the advanced diagnostics available to instrumentation and control engineers in vibrating fork level switches. He describes the theory of operation of these level […]

Wireless Question – How to Connect Level Switch to Light or Horn

Posted in Measurement, Wireless on Tuesday, June 16th, 2009. No comments yet
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As wireless instrumentation based on the WirelessHART standard continues to move into the mainstream, I get great questions about it by email from time to time. Here’s one that came in this week that I thought I’d share: Do you guys know of a wireless alarm system that we could purchase that would accept an […]