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Jim Cahill
1 Jun 2021
Solving Level Measurement Challenges in Tough Process Conditions in the Chemical Industry
According to OSHA, the chemical industry has one of the most stringent safety regulations. Regular inspections, servicing, and maintenance work are required due to the intense stress that is often placed on the equipment due to exposure to very aggressive substances and extremely high temperatures and pressures. Depending on the size and type of plants and operations concerned, maintenance often involves a complete shutdown...
Jim Cahill
10 May 2021
Selecting the Right Point Level Switch to Prevent Dangerous Spills of Solids Materials from Vessels and Silos
If you have vessels and silos containing solids materials such as cement, grains, wood chips and plastic pellets, it is vital to prevent overfills. Should an overfill result in a spill, the consequences can be extremely serious, with falling materials having the potential to cause injuries or even fatalities. In addition, product can be wasted, production time lost, environmental fines incurred, and the vessel or silo...
Jim Cahill
9 Apr 2021
Pump Health Monitoring Interactive Virtual Webinar
While processes have been monitored with sensors for many decades, advancements in technology, especially with the Industrial Internet of Things (IIoT) , has made monitoring for improved safety, efficiency, and reliability much more achievable than in the past. For example, in many plants, pumps that are considered non-critical are not monitored. These are either infrequently manually inspected or run to failure. Today...
Jim Cahill
25 Feb 2021
Advanced Level Measurement Instrumentation
Given the weather extremes we’ve experienced here in the U.S. in recent weeks, manufacturers and producers with outdoor production facilities need accurate and self-diagnosing instrumentation to assure reliable operations. Level measurements are one critical area where this is especially true. In a Flow Control article, Advanced level instrumentation improves performance and safety , Emerson’s Nicole Meidl and Megan...
Jim Cahill
26 Jan 2021
Making the Most of Built-In Proof-Testing for Your Safety Lifecycle Management
It’s not surprising that safety is a top priority for plant managers and operators, but minimizing risk in these environments is no simple task. Safety Instrumented Systems (SIS) are failsafes built into critical processes to maintain maximum operational integrity. These systems consist of independent sensors and control equipment in series in order to detect abnormal operating conditions. Should an issue arise, the...
Jim Cahill
8 Dec 2020
Solving Chemical and Petrochemical Level Measurement Challenges
At the Emerson Exchange Americas Virtual Series, Emerson Phil Lever and Linda Hagerskans shared ways to solve level measurement challenges for chemical and petrochemical producers. Their presentation covered: …three common Level measurement challenges within the Chemical industry, including remote proof-testing of switches, early detection of interface level and reliable level measurement in reactors. We will walk...
Jim Cahill
8 Dec 2020
Solids Level Measurement Technologies
Measuring the level of solids has unique challenges with an uneven surface in many cases. In an Emerson Exchange Americas Virtual Series presentation, Emerson’s Regina Nemeth and Lovisa Rogestedt discussed: …how the complete Rosemount Solids Level Portfolio , including both continuous and point level detection, meets your process requirements and provides a reliable and safe solution for your applications. Lovisa...
Jim Cahill
3 Dec 2020
Hygienic Non-Contacting Radar Level Measurement
At the Emerson Exchange Americas Virtual Series, Emerson’s Felix Johansson and Patricia Borghede introduce the world’s first non-contacting radar level transmitter designed for food & beverage applications. Here is their presentation abstract: To meet the need for highly accurate and reliable level measurement in hygienic applications, Emerson has developed the Rosemount 1408H Level Transmitter, the world’s first non...
Jim Cahill
2 Sep 2020
Multiple Systems Working Together Prevent Tank Overfill Disasters
In Hydrocarbon Engineering’s Tanks & Terminals Supplement , Emerson’s Helena Hjortsberg looks at all the elements of a comprehensive overfill prevention system in her article, A Coordinated Strategy. Overfilling a tank storing hydrocarbons or other flammable chemicals can cause an environmental incident under the best circumstances, but also a high probability of an explosion and fire. Given the costs in lost product...
Jim Cahill
22 Jun 2020
Low Dielectric Radar Level Measurement
Guided wave level measurement technology works by sending low-energy microwave pulses along a metal probe which is then reflected by the surfaces. The probe is in direct contact with the media and detects a level when reaching a media with a different dielectric constant. It calculates the distance to the surface, which is then subtracted from the total length to calculate the level. For applications with fluids with...
Jim Cahill
3 Mar 2020
Tips for Accurate DP Level Measurements
Nicole Meidl Differential pressure (DP) for liquid level measurement works by measuring the hydrostatic head pressure at the bottom of the vessel and the specific gravity of the liquid. The height of the liquid in inches is the pressure of the liquid column in inches of water divided by the specific gravity of the liquid. I share this as background for a Processing magazine article, Better ways to use differential...
Jim Cahill
11 Dec 2019
Liquid Level Measurement Automation Basics
Lydia Miller What is the purpose of your level measurement? If you know the answer to that I highly recommend an Intech article, How to measure liquid level in vessels , by Emerson’s Lydia Miller . This article is but one of a number of excellent learning articles in the International Society of Automation (ISA)’s Automation Basics series of articles. Lydia opens highlighting different purposes for level measurements...
Jim Cahill
11 Dec 2019
Liquid Level Measurement Automation Basics
Lydia Miller What is the purpose of your level measurement? If you know the answer to that I highly recommend an Intech article, How to measure liquid level in vessels , by Emerson’s Lydia Miller . This article is but one of a number of excellent learning articles in the International Society of Automation (ISA)’s Automation Basics series of articles. Lydia opens highlighting different purposes for level measurements...
Jim Cahill
5 Nov 2019
Frequency Modulation for Improved Radar Level Measurement
Ingemar Serneby For those that still listen to FM radio over the airwaves given our increasingly streaming digital world, you may know that the FM stands for “frequency modulation”. Information such as the music you hear on an FM music station is encoded in the radio signal through subtle changes in the frequency of the signal. In a Flow Control magazine article, How frequency modulation can improve effectiveness...
Jim Cahill
5 Nov 2019
Frequency Modulation for Improved Radar Level Measurement
Ingemar Serneby For those that still listen to FM radio over the airwaves given our increasingly streaming digital world, you may know that the FM stands for “frequency modulation”. Information such as the music you hear on an FM music station is encoded in the radio signal through subtle changes in the frequency of the signal. In a Flow Control magazine article, How frequency modulation can improve effectiveness...
Jim Cahill
22 Oct 2019
Successfully Applying Non-Contacting Radar in Black Liquor Mixing Tanks
In the Kraft pulping process, wood fibers are separated, and resinous materials removed, using an alkaline (typically sodium hydroxide and sodium sulfide) cooking liquor, also known as white liquor. This process converts wood into cellulosic pulp used in the papermaking process. This digesting process turns the white liquor into black liquor, which contains : …lignin fragments, carbohydrates from the breakdown of...
Jim Cahill
8 Oct 2019
Improving Floating Roof Tank Performance
Christoffer Hoffmann Bulk liquid storage terminals are a critical component in the energy industry supply chain between production and distribution. Floating roof tanks are commonly used to avoid having a vapor space or ullage between the liquid level and roof found in fixed-roof tanks. A Storage Terminals magazine article, Staying on the Radar , shared some thoughts from Emerson’s Christoffer Hoffmann on avoiding...
Jim Cahill
8 Oct 2019
Improving Floating Roof Tank Performance
Christoffer Hoffmann Bulk liquid storage terminals are a critical component in the energy industry supply chain between production and distribution. Floating roof tanks are commonly used to avoid having a vapor space or ullage between the liquid level and roof found in fixed-roof tanks. A Storage Terminals magazine article, Staying on the Radar , shared some thoughts from Emerson’s Christoffer Hoffmann on avoiding...
Jim Cahill
24 Sep 2019
Two-Wire FMCW Radar Level Transmitter Advantages
Christoffer Widahl and Jimmie Soderstrom presented The New Normal for Process Radar—The New Two-Wire FMCW [Frequency-Modulated Continuous Wave] Radars are Here!, at the 2019 Emerson Exchange conference. Jimmie opened with a question, “Why measure level?” It is to monitor that supplies are sufficient to keep processes running, control processes to run at maximum output and to control safety functions such as overfill...
Jim Cahill
24 Sep 2019
Two-Wire FMCW Radar Level Transmitter Advantages
Christoffer Widahl and Jimmie Soderstrom presented The New Normal for Process Radar—The New Two-Wire FMCW [Frequency-Modulated Continuous Wave] Radars are Here!, at the 2019 Emerson Exchange conference. Jimmie opened with a question, “Why measure level?” It is to monitor that supplies are sufficient to keep processes running, control processes to run at maximum output and to control safety functions such as overfill...
Jim Cahill
29 Aug 2019
Overcoming Citrus Processing Level Measurement Challenges
Don Parry Just imagine that you’re an operator in a facility that makes concentrated orange juice and the production process requires you to manually check the levels of large processing tanks in the freezing process conditions. Parkas and gloves are a part of your work attire. These were the conditions as told in an excellent story told in Processing magazine, Radar Level Measurement Improves Inventory Control for...
Jim Cahill
14 Aug 2019
How to Install a Rosemount Non-Contacting Radar Level Transmitter
Here’s a quick one-minute YouTube video, Rosemount 5408 How To – Mechanical Installation showing the mechanical installation of a Rosemount 5408 Non-Contacting Radar level transmitter. Not much to say other than it looks very straight forward. Visit the Non-Contacting Radar section on Emerson.com for more on this technology and applications to continuously measure levels in tanks and vessels. You can also...
Jim Cahill
14 Aug 2019
How to Install a Rosemount Non-Contacting Radar Level Transmitter
Here’s a quick one-minute YouTube video, Rosemount 5408 How To – Mechanical Installation showing the mechanical installation of a Rosemount 5408 Non-Contacting Radar level transmitter. Not much to say other than it looks very straight forward. Visit the Non-Contacting Radar section on Emerson.com for more on this technology and applications to continuously measure levels in tanks and vessels. You can also...
Jim Cahill
16 Jul 2019
Reducing Level Detector Proof Testing Complexity
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 new whitepaper, Reducing the Complexity of Proof-Testing with New Generation Point Level...
Jim Cahill
16 Jul 2019
Reducing Level Detector Proof Testing Complexity
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 new whitepaper, Reducing the Complexity of Proof-Testing with New Generation Point Level...
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