OPEN PARA LA SEGURIDAD Y EL RENDIMIENTO
Mejore la seguridad y el rendimiento de su planta gracias a la gestión de alarmas, la supervisión de rendimiento y de activos, la visualización web de datos, la optimización, el control avanzado y la sintonía con la nueva herramienta TaiJi.
Repiensen sus métodos de trabajo y obtengan resultados inmediatos gracias a nuestros servicios, nuestra capacitación y nuestra pericia en asesoría. Manejen el cambio inteligentemente con nuestras soluciones probadas.
April 2004
In this issue
 |
About us |
|
Classes and seminars |
|
Trick for this month |
|
To contact us |
See our previous issues :
http://www.topcontrol.com/techinfo/news.php
|
|
Our next Webinar April 15 2004, 10 :30 (E.T. DST, GMT-4) :
Tuning Slow loops in minutes
http://www.topcontrol.com/training/tlistcourses.php?idcours=32
Price : 295$ per connection (no limit on number of attendees in the room)
Credit card or PO.
|
|
Next classes:
Boston Mass, May 3-5.
Class on Detailed loop analysis with Expertune.
See at http://www.topcontrol.com/training/tlistcourses.php?idcours=10
Boston Mass, May 6-7.
Seminar on performance assessment techniques #SE-120-2E
See at http://www.topcontrol.com/training/tlistcourses.php?idcours=29
Michel Ruel will be part of a course
«Process Integration - turning data into knowledge for decision making.»
http://www.paptac.ca/english/layout/index.htm by PAPTAC in May 10-14 2004.
Also in June, Webinars, classes in Houston, Milwaukee and St-John NB.
See our new calendar for 2004 Classes & Seminars
See at http://www.topcontrol.com/training/tcalendar.php
|
|
Sampling
To analyze oscillation problems, signals have to be sampled fast enough: sampling has to be faster than phenomena.
If a loop is tuned aggressively, oscillations will be present; the period will be a multiple
of dead time (~2 to 5). If oscillations are coming from a valve problem, the period will be in the
same order of magnitude or slower. Mechanical problems in a process can generate faster cycling.
Also, it is essential to remove all forms of data compression: report by exception, compression, special sampling.
Rule of thumb: sampling time 
dead time
Suggested sampling time:
- Flow, Pressure 1s
- Consistency 3s
- Temperature, Level 20s
- Analysis 60s
|
|
Comments, suggestions and requests are welcomed. Please e-mail us at:info@topcontrol.com
You are welcomed to visit our web site :http://www.topcontrol.com
|
49 Bel-Air Street, Lévis, QC
|
|
4734 Sonseeahray Drive
|
