Central North-West Local Section held one of its’ monthly Technical Lectures on the evening of Wednesday 7th November, at the offices of Yokogawa UK (Companion Company)
The lecture was “The Blunt-end of Measurement & Control”, given by John Ahern of Electro-Mechanical Installations of Stockport. John is a Consultant Instrument Design Engineer in conjunction with EMI Ltd.
The lecture discussed the effects that “blunt” equipment such as thermowells, orifice plates, Venturi, wedge-meters, pitot tubes and even instrument manifolds.
Good control starts with good measurement. Modern trends have emphasised the performance of equipment such as digital transmitters and signal processing, often forgetting all such signals originate in the “blunt” equipment above. For example, errors such as +-1% are quoted in flow loops, with little understanding of the effects of varying pressure, temperature and viscosity on the errors associated with orifice plates.
The lecture was well attended and well received. You can find details of future lectures on the InstMC website under “Events” and “Local Sections”.
EMI, founded in 1967, is a specialist manufacturer of process instrumentation and associated accessories based in North West UK. The company has a 50 year proven track record supplying to the oil & gas, chemical & nuclear industries.
John Ahern for Electro-Mechanical Installations discusses the performance of thermowells, orifice plates, Venturi and pitot tubes to Central North-West Local Section
Shedding Light on Functional Safety
On Wednesday 15th November, Central-North-West Local Section staged the lecture “Shedding Light on Functional Safety Certificates”.
It was presented by Dr Hassan El-Sayed of CSA Group Test & Certification, based in Chester.
The lecture covered the accuracy and applicability of data often supplied on functional safety certificates for use in SIL rated instrument loops.
Plant operators are often in the position of having to take such data at face-value, perhaps not realising this data must be transposed into the reality of their particular application. It’s also easy to confuse the application of IEC61508 and IEC61511 and what can be claimed when using each.
Sixteen local C&I engineers attended and as always the lecture was hosted by Yokogawa UK at their offices in Runcorn.
Technical Lecture Organiser, Tom S Nobes said “Thanks to Dr El-Sayed for an interesting and challenging lecture on a complex subject. This is an often misunderstood area, often not made any easier by the way the data is presented. Thanks again to Yokogawa UK (Companion Company) for our use of their facilities.”
CSA Group certifies products against European and International Standards for explosion and functional safety, ISO9001, ISO14001 and OHSAS18001 management systems and personnel competence certification in the fields of explosion safety and environmental product installation.
Dr Hassan El-Sayed of CSA Test & Certification lecturing on “Shedding Light on Functional Safety Certificates”, for Central North-West Local Section at Yokogawa UK’s offices.