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Integrated analytical measurement systems are often complex, costly, and have multiple stakeholders involved throughout all phases of the system’s integration project – from conception to commissioning. With so many factors to consider, including stringent specifications, thorough documentation, and tight deadlines to meet, any minor delay can cause a major setback and place your bottom line at risk.
Most industrial companies aren’t equipped to go into the systems integration business in order to meet their analytical systems’ needs. Emerson is! With a unique combination of analytical expertise, process knowledge, and global resources, Emerson is a single-source provider of complete analytical solutions for liquid and process gas applications including integration of third party analyzers. From sample handling systems and standalone instrumentation panels and cabinets, to three-sided shelters and environmentally controlled walk-in enclosures, Emerson offers wide flexibility in system packaging to meet project and application requirements.
Far from just nuts and bolts hardware, Emerson manages systems projects through the Project Management Office (PMO) where highly trained systems engineers take care of everything from Front End Engineering Design (FEED) and consulting services to manufacturing, integration and testing, to commissioning and on-going lifecycle support.
A new guide available HERE shows you how to stay on time and on budget, ensure project certainty and reduce risks. The guide outlines ways to –
Download a copy of the guide HERE and get a better idea of how to take the risk and worry out of executing complex analytical systems projects. We also invite you to learn more about the Emerson advantage in systems integration by visiting Emerson.com/RosemountAnalyticalSystems.
And come join the Emerson Exchange 365 Community to get real solutions to real-world problems and maximize performance, productivity, and profitability: www.emersonexchange365.com.
Hi everyone. You know that here at Analytic Expert we focus on bringing you solutions-oriented information to solve your plant and processing problems. Today however, we’d like to pause and give you a glimpse into what your confidence in us means.
The Asian Manufacturing Awards were conceived in 2012 to recognize companies that deliver cutting-edge industrial technology solutions and services in control, instrumentation, and automation. This year, the Awards received close to 100 nominations across the 25 award categories. The nominations were assessed by a judging panel made up of ten internationally recognized experts and practitioners from a variety of industry sectors and disciplines. Their extensive industry knowledge and experience enabled them to adjudicate effectively and ensure deserving winners in each category.
Emerson has participated since 2012 and has won a number of awards in this prestigious event, but this year was the topper (so far) –
AMA AWARDS 2017 – Automation & Control Category:
AMA AWARDS 2017- Industry Solution Category:
The Awards Ceremony Gala Dinner was held July 27th at the Mandarin Orchard Hotel Singapore, Imperial Ballroom, and, as you’ll see from all our photos, a great time was had by all.
Thank you for your interaction, challenges, and confidence that make awards like these both possible and gratifying. And thank you for letting us take a moment to bask in the glory.
We’re deep into the winter holiday season, so we thought it would be interesting to take a break from our normal process technology news and take a look back at one of our popular throwback blog posts from our archives about the origins of some of the winter holidays we celebrate. Enjoy and happy holidays from all of us at Emerson Process Management, Rosemount!
How Much Solstice Do You Know?
Since we’re getting in a winter holiday mood, we thought it would be interesting to track some of the origins of holidays at midwinter … so here we go.
The winter solstice in the northern hemisphere is the time at which the sun appears at noon at its lowest altitude above the horizon. It occurs on the shortest day and longest night of the year. The significance of the midwinter event appears to have been recognized even during Neolithic and bronze age times. At Stonehenge in Britain and Newgrange in Ireland, the axes of the structures seem to have been carefully aligned to the solstice sunrise (Newgrange) and sunset (Stonehenge). The solstice would have been very significant to people not certain of living through a harsh winter, called the “famine months.” In temperate climates, the midwinter festival was the last feast celebration before deep winter began. Most cattle were slaughtered so they would not have to be fed during the winter, so it was almost the only time of year when a supply of fresh meat was available. The majority of wine and beer made during the year was finally fermented and ready for drinking at this time – a cause for celebration in uncertain times.
Knowledge of when the solstice occurs has only recently been determined to near its instant according to precise astronomical data tracking. It is not possible to detect the actual instant of the solstice. To be precise to a single day, one must be able to observe a change in azimuth, or elevation less than or equal to about 1/60 of the angular diameter of the sun. Observing that it occurred within a two-day period is easier, requiring an observation precision of only about 1/16 of the angular diameter of the sun. Thus, many observations are of the day of the solstice rather than the instant. This is often done by watching the sunrise and sunset using an astronomically aligned instrument that allows a ray of light to cast on a certain point around that time.
There are many, many celebrations that occur at or around the winter solstice. But no matter how you celebrate midwinter, we hope the time is full of love, laughter, and light.
By C.D. Feng
Happy New Year! Time flies.
In my last blog post, I discussed the basics of ground loop, the most common and yet dreaded phrase field service engineers hear when electrochemistry-based sensors misbehave.
Here is where we left off last time:
The equivalent circuit of a pH sensor in a sample solution, where Eg is the voltage developed at the pH glass electrode of the pH sensor, Er, the voltage developed at the reference electrode of the pH sensor, Rg, the resistance of the pH glass membrane, Rr, the resistance of the reference junction, and Rs, the resistance of the solution.
The signal of the pH sensor is Eg – Er, and we can obtain the signal by measuring it with a voltmeter as connected below:
Now, we have the equivalent circuit of the pH sensor connected to a pH meter (a voltmeter).
The two open-ended nodes are now connected to the voltmeter, and form a closed circuit loop. In other words, the sensor in the sample solution is not an open circuit anymore. Once it’s a closed circuit loop, there will be current flowing through the loop, because there are batteries in the loop.
In this case, the voltage measured is not exactly Eg – Er anymore, but:
Eg – Er – iRg – iRs – iRr (1)
However, a modern pH meter has EXTREMELY HIGH INPUT IMPEDANCE, which means that it will not allow almost any current passing through it, i.e. the current ‘i’ through the closed loop is close to zero. Zero times any number is still zero, so the above equation becomes:
Eg – Er (2)
This means a pH meter can accurately measure the signal from the pH sensor. This is also why you can not use a regular voltmeter to measure the signal of a pH sensor.
Is this circuit loop a ground loop?
Unfortunately no. Very close, but not a ground loop.
However, the practice above is a very good warm up for me to describe the ground loop in my next blog post. And with the practice above, you have learnt the critical requirement of a pH meter, the EXTREMELY HIGH INPUT IMPEDANCE.
In the real world, the EXTREMELY HIGH INPUT IMPEDANCE of the pH meter can be compromised, either by the low quality or deterioration of the cable connecting from the pH meter to the pH sensor, or by the contamination of the terminals either at the pH meter or at the sensor.
Once it’s compromised, you will have an i in equation (1), and when that happens, your pH meter will not measure the pure pH sensor signal Eg – Er anymore, it will have an erroneous reading, and equation (1) tells you exactly why.