“So, SIS is an independent system which could direct an industry into a safe state whenever uncontrollable situations occur,” said Alumni of ITB Engineering Physics, Arsil Ardhy, S.T. who is also a Senior Engineer of PT Yokogawa Indonesia in a research webinar about “Implementing Safety Instrumentation System in Process Industries”, Wednesday (9/6/2021). This webinar was opened and led by Ir. Edi Leksono, M.Eng., Ph.D.

Arsil said, SIS functions to detect conditions that are outside normal and out of control and return them to a safe condition so that things that can be fatal to humans or other factory components do not happen.

SIS is expected to be a barrier to major disasters in factories/processes. SIS is expected to at least be able to reduce the impact of risk and the most important thing is to be able to secure the people who work in the factory or process so that they remain safe in the event of a major accident.

“Basically, SIS protection functions can be divided into three types of functions, namely, to protect workers, the environment, and industrial assets from potential hazards posed by the industrial process itself. In addition, the image of the company is also something that must be protected,” said Arsil.

SIS is generally applied in the form of ESD (Emergency Shutdown System), BMS (Burner Management System), HIPPS (High Integrity Pressure Protection System) & FGS (Fire & Gas System). The commonly used SIS technologies are relays, PLC TMR (Triple Modular Redundant System), SIS TMR/QMR (Quadruple Modular Redundant)/VMR (Versatile Modular Redundant).

Reporter: Yoel Enrico Meiliano (TPB FTI 2020)
Translator: Aghisna Syifa Rahmani (TPB SITHS 2020)