Samson TROVIS 3730-3 Notice De Montage Et Mise En Service page 156

9. This certificate relates to the design, examination and testing of the products specified herein. The FM
Approvals surveillance audit program has further determined that the manufacturing processes and quality
control procedures in place are satisfactory to manufacture the product as examined, tested and Approved.
10. Equipment Ratings:
Intrinsically Safe for Class I, II, III Division 1, Groups A, B, C, D, E, F, and G hazardous (classified) locations
in accordance with drawing EB 8484-3 , Intrinsically Safe for Class I, Zone 1, Group IIC hazardous
(classified) locations in accordance with drawing EB 8484-3; Nonincendive for Class I, II, III Division 2,
Groups A, B, C, D, F and G hazardous locations, indoors and outdoors (Type 4X, IP66) with an ambient
temperature rating per the table in Section 12 below
11. The marking of the equipment shall include:
IS Class I, II, III, Division 1, Groups A, B, C, D, E, F, G; T* Ta*
IS Class I, Zone 1, AEx ia IIC T* Gb
NI Class I, II, III Division 2, Groups A, B, C, D, F, G; T* Ta*
Type 4X; IP66
For Entity and NIFW parameters – refer to document no. EB8484-3
T* - See below
12. Description of Equipment:
General - The Type TROVIS 3730-3 HART Positioner is a single acting positioner for attachment to pneumatic
control valves. The positioner ensures a predetermined assignment of the valve position (controlled variable
x) to the input signal (reference variable w). It compares the input signal received from a control system to the
travel or rotational angle of the control valve and issues a corresponding output signal pressure (output variable
y) for the pneumatic actuator.
Construction - The Type TROVIS 3730-3 HART Positioner mainly consists of the electronics part and one
pneumatic module. The parts are assembled in an enclosure made of aluminium die cast or stainless-steel die
cast. The enclosure has a cover with a polymeric inspection window. As an alternative to the polymeric material
the window can be made from aluminium. The enclosure has an ingress protection rating of
Type 4X and IP66
THIS CERTIFICATE MAY ONLY BE REPRODUCED IN ITS ENTIRETY AND WITHOUT CHANGE
FM Approvals LLC. 1151 Boston-Providence Turnpike, Norwood, MA 02062 USA
T: +1 (1) 781 762 4300 F: +1 (1) 781 762 9375 E-mail:
F 347 (Apr 21)
15-20
SCHEDULE
US Certificate Of Conformity No: FM21US0097
information@fmapprovals.com www.fmapprovals.com
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EB 8484-3 FR