PETRO-CHEMICAL/FERTILIZER/REFINERY/PULP AND PAPER/CHEMICAL
DCS and marshelling room comes under automation and play a major role in the output and quality of product. Corrosive gases present in industrial environment like H2S, SO2, chlorine, ammonia, nitric oxide etc enter the automation room and cause electronic failure of electronic cards. OEM suppliers Honeywell/ABB/Yokogawa/ Rockwell Automation high recommend to maintain comfort environment for smooth operation of electronics. Temperature and RH is maintain with the help of HVAC however gases contaminations are ignored. Chemical filter is install to remove the corrosive contaminations present in the near vicinity of control room and maintain the G1 class air quality as per ISA 71.04-2013 standard.
In WWT plant or water treatment plant H2S and chlorine gases cause high corrosion on electronic results in breakdown of electronics.