
Instruction Manual Supplement
D103635X012
3661
October 2017
INMETRO Hazardous Area Approvals
™
Fisher
This supplement provides INMETRO Hazardous Area Approval information for the 3661 positioner. Use this in
conjunction with information provided in the Fisher 3660 and 3661 Positioners instruction manual (D101402X012
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
3660 and 3661 positioners.
Note
This information supplements the nameplate markings affixed to the product.
Always refer to the nameplate itself to identify the appropriate certification.
3661 Positioner
).
WARNING
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 3661 positioner
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
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3661
October 2017
Intrinsically Safe
Ex ia IIC T6/T5/T4 Ga
Tamb = -40_C to: +47_C for T6 ; +62_C for T5 ; +82_C for T4
Nominal Characteristics:
30 Vmax, 4-20 mA
Ui = 30 V ; Ii = 150 mA ; Pi = 1.25 W ; Ci = 0 nF ; Li = 0 mH
Type n
Ex nA IIC T6 Gc
T6 = -40_C to +77_C
Nominal Characteristics: 30 Vmax, 4-20 mA
Instruction Manual Supplement
D103635X012
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merson Automation Solutions
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore
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2
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