OPT FOR SECURITY AND PERFORMANCE

Improve the security and performance of your plant with alarm management, performance supervision, asset supervision, web-based data visualisation, optimisation, advanced control, and tuning with the new TaiJi tool.

Rethink your working methods and obtain immediate results thanks to our services, trainings, and consulting expertise. Manage changes intelligently with our proven solutions.

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April 2004

In this issue

puce About us
puce Classes and seminars
puce Trick for this month
puce To contact us

See our previous issues :
http://www.topcontrol.com/techinfo/news.php

About us

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.


Classes & seminars

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



Trick for this month:

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

To contact us

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

puce

49 Bel-Air Street, Lévis, QC
G6V 6K9, Canada
Phone: (418) 834-2242
Fax: (418) 834-2651  
puce

4734 Sonseeahray Drive
Hubertus, WI 53033
Toll free: (877) 867-6473