S
Hi,
I am used to ATEX certifications for instruments.
For instance, an instrument is certified following ATEX directive as Ex Ia ... With this code I know that this instrument requires a Barrier as it is designated as "Ia" (Protection Method).
Now I have an instrument that is designated just as "CSA approved for Class II, Div 1 & 2, Groups E,F, and G" (no refernce to ATEX). So I understand that this instrument can be used in a "Class II Div 1&2" zone, but it does not say anything about the "Protection Method", so I don't know if I need to use a Barrier to feed the instrument.
How could I know?
Thanks!
I am used to ATEX certifications for instruments.
For instance, an instrument is certified following ATEX directive as Ex Ia ... With this code I know that this instrument requires a Barrier as it is designated as "Ia" (Protection Method).
Now I have an instrument that is designated just as "CSA approved for Class II, Div 1 & 2, Groups E,F, and G" (no refernce to ATEX). So I understand that this instrument can be used in a "Class II Div 1&2" zone, but it does not say anything about the "Protection Method", so I don't know if I need to use a Barrier to feed the instrument.
How could I know?
Thanks!