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Certificate No.:
IECEx BVS 21.0083
Date of issue:
2023-03-08
EQUIPMENT:
Equipment and systems covered by this Certificate are as follows:
General product information:
The positioner TROVIS 3797 is a 2-WISE power load suitable for use in a 2-WISE system. It is a single or double acting positioner for
The positioner ensures a predetermined assignment of the valve position to the setpoint. The valve position is transmitted either as an angle
of rotation or a travel to the pick-up lever, from there to the travel sensor and forwarded it to the microcontroller.
The PID algorithm in the microcontroller continuously compares the valve position measured by the position sensor with the setpoint from the
control system. In case of a set point deviation, the pneumatic module causes the actuator to be either vented or filled with air. As a result, the
closure member of the valve (e.g. plug) is moved to the position determined by the setpoint.
The data exchange and the electrical supply to the control units are carried out via Ethernet Advanced Physical Layer (APL).
Model type code:
See Annex
Ratings:
The Signal Circuit Terminal 11 (+) / 12 (-) is a 2-WISE power load port with level of protection
IIC gases.
SPECIFIC CONDITIONS OF USE: NO
15-8
IECEx Certificate
of Conformity
Page 3 of 4
Issue No: 1
and for use in hazardous areas with Group
amb
EB 8497
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