SAIMC


SAIMC: Secunda branch

December 2018 SAIMC

The technology evening for August was presented by Lourens du Plessis, principal specialist for functional safety at Sasol. As defined in the IEC standards, there are four safety integrity levels (SIL 1-4). A higher SIL means a greater process hazard and thus a higher level of protection is required from the safety instrumented system (SIS).

Johan Maritz (left) thanks Lourens du Plessis after the presentation.
Johan Maritz (left) thanks Lourens du Plessis after the presentation.

SISs are installed in process plants to mitigate hazards by taking the process to a ‘safe state’ when fixed set points have been exceeded, or when safe operating conditions have been violated.

SIL comes from two voluntary standards (IEC 61508 and IEC 61511) used by plant owners, operators, manufacturers and system designers to calculate safety performance requirements for hazardous operations.

Lourens took us through a very simple but very useful mathematical approach outlining the steps to be taken during a SIL calculation in order to understand the major variables and their impacts. The branch thanks Lourens for his informative and well received presentation.

In closure for the year, thank you to all our members and visitors who attended our technology events during 2018. Enjoy the festivities of the holiday season and come back safe in the new year.

Annual general meeting

All SAIMC members are invited to attend the branch AGM on Thursday 17 January 2019.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

SAIMC: From the President’s desk
May 2019, SAIMC , SAIMC
The SAIMC branches are doing very well this year. If you as a member have not been able to get to a technology evening to learn something new regarding technology and network with your peers, I urge you ...

Read more...
SAIMC: Tshwane branch
May 2019, SAIMC , SAIMC
There have been some changes at the branch and Morne Maree has taken over from Petrus Klopper. Petrus will move to a new portfolio for which more information will be communicated later. Nico Marneweck ...

Read more...
SAIMC: Durban branch
May 2019, SAIMC , SAIMC
The April technology evening was held as usual at the Durban Country Club. The subject of ‘Taking the next step in automation using collaborative robots’ elicited great attendance and interest, and presenter ...

Read more...
SAIMC: Secunda branch
May 2019, SAIMC , SAIMC
Technology evening    On 7 February, Ian Janse van Rensburg, valve specialist from Mitech, gave a very informative presentation on control valve actuator selection.    Valve actuators are a differentiating ...

Read more...
SAIMC: Johannesburg branch
May 2019, SAIMC , SAIMC
What is flow measurement, why is it important and how do we measure it? Those were the questions asked of members at the March Technology evening, hosted at WIKA Instruments and presented by Sagadevan ...

Read more...
SAIMC: Vaal branch
May 2019, SAIMC , SAIMC
At the last technology evening, SMC Pneumatics, in partnership with Staro Process Control, presented on the topic “Energise your efficiency: Transform energy into a boost for your competitiveness”.    Brian ...

Read more...
SAIMC: From the President’s desk
April 2019, SAIMC , SAIMC
In the pursuit of betterment, in an ideal world, we would like to think that every person, can, as a minimum, choose to leave this world in a better state than they found it. For each of us this might ...

Read more...
SAIMC: Johannesburg branch
April 2019, SAIMC , SAIMC
Is your data really yours?    This question was posed by Mark Dilchert of Integr8. With cloud-based storage and communication, a company’s data goes in one end, (usually) comes out the other, without ...

Read more...
SAIMC: Tshwane branch
April 2019, SAIMC , SAIMC
The branch technology evenings are held on the first Wednesday of the month at our new venue – the offices of IoT.nxt, with invites sent via e-mail. Unfortunately, at present only around 30% of subscribers ...

Read more...
SAIMC: Durban branch
April 2019, SAIMC , SAIMC
Industrial process control is normally achieved by manipulating operating temperatures, pressures, levels and flow rates, with the aim being to produce an end product of proven quality while optimising ...

Read more...