INMETRO Hazardous Area Approvals
Fisherr 3622 Electro‐Pneumatic Converter
and 3620J Positioners
This supplement provides INMETRO Hazardous Area Approval information for the 3622 electro‐pneumatic converter
and the 3620J positioner. Use this in conjunction with information provided in the 3610J and 3620J Positioners and
3622 Electro‐Pneumatic Converter Instruction Manual (D200149X012).
INMETRO—National Institute of Metrology, Quality and Technolog. INMETRO approval is accepted in Brazil.
Certain nameplates may carry more than one approval, and each approval may have unique installation/wiring
requirements and/or conditions of “safe use”. These special instructions for “safe use” are in addition to, and may
override, the standard installation procedures. Refer to the instruction manual
for all other information regarding
3610J and 3620J positioners and 3622 electro‐pneumatic converters.
This information supplements the nameplate markings affixed to the product.
Always refer to the nameplate itself to identify the appropriate certification.
Failure to follow these conditions of “safe use” could result in personal injury or property damage from fire or explosion,
and area re‐classification.
For 3622 Converter (also applies to 3620J positioners)
Certificate Number: IEx 14.0240
Standards Used for Certification
ABNT NBR IEC 60079-0:2013
ABNT NBR IEC 60079-1:2009
ABNT NBR IEC 60079-11:2013
ABNT NBR IEC 60079-15:2012
Instruction Manual Supplement
3622 and 3620J