Calibration in Hazardous Areas

There are many hazardous areas in the process industry.  Often, you must perform calibrations in these areas. 

So, what do you need to know when selecting calibration equipment that is safe to use in a hazardous environment?

• What is a hazardous area?
• What is the explosion triangle?
• Brief history of hazardous areas
• Typical industries with hazardous areas
• Flammable and combustible liquids
  
• Various protective techniques
  
• Intrinsically safe technique
  
• “Hot work permit”
  
• International / North American legislation and differences
  
• Hazardous zones classification
  
• Product categories
  
• Equipment grouping
  
• Temperature class
  
• Divisions
  
• Examples of equipment marking
  

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