TROVIS / TROVIS SAFE 3793
General - The Type 3793 HART Positioner is a single or double acting positioner for attachment to
pneumatic control valves. The positioner ensures a pre-determined assignment of the valve position to
the input signal. It compares the input signal received from a control system to the travel or rotational
angle of the control value and issues a corresponding output signal pressure for the pneumatic actuator
Construction - The 3793 HART Transmitter Positioner consists of the electronic part and one or two
pneumatic modules. 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 IP66
See Annex for model code, thermal and electrical values.
14
Specific Conditions of Use:
See Annex for Specific Conditions of Use
15
Essential Health and Safety Requirements:
In addition to the Essential Health and Safety Requirements covered by the standards listed at item 9, all
other requirements are demonstrated in the confidential report identified in item 8.
16
Test and Assessment Procedure and Conditions:
This Type Examination Certificate is the result of testing of a sample of the product submitted, in
accordance with the provisions of the relevant specific standard(s), and assessment of supporting
documentation. It does not imply an assessment of the whole production.
Whilst this certificate may be used in support of a manufacturer's claim for UKCA Marking, FM
Approvals Ltd accepts no responsibility for the compliance of the equipment against all applicable
Regulations in all applications.
This Certificate has been issued in accordance with FM Approvals Ltd's UKCA Certification Scheme.
17
Schedule Drawings
A list of the significant parts of the technical documentation is annexed to this certificate and a copy has
been kept by the Approved Body.
18
Certificate History
Details of the supplements to this certificate are described below:
Date
20
October 2022
th
24
January 2023
th
THIS CERTIFICATE MAY ONLY BE REPRODUCED IN ITS ENTIRETY AND WITHOUT CHANGE
FM Approvals Ltd. Voyager Place, Maidenhead, Berkshire, SL6 2PJ. United Kingdom
T: +44 (0) 1753 750 000 F: +44 (0) 1753 868 700 E-mail:
F UKEX 029 (Jan/21)
15-54
SCHEDULE
to Type Examination Certificate No. FM21UKEX0203X
Description
Original Issue.
Supplement 1:
Report Reference: RR235223 dated 18
Description of the Change: "HART" removed from TROVIS 3730-1 and other
Typos corrected in Section 13 (Description of Equipment or Protective System).
No change to the CDL.
atex@fmapprovals.com www.fmapprovals.com
January 2023.
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EB 8484-1 FR