GEA T.VIS E-20, Инструкция по эксплуатации

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In the case of dust explosion protection, the IP protection of the housing must not be
compromised. Therefore, bear in mind:
If there is a potentially explosive atmosphere, the T.VIS E-20 must not be opened.
The capacitance measured at the exposed metallic screw connections is 91.8 pF. The user must
determine the suitability of the unit in the end-use application.
The installation of the unit is permitted only in a vertical position.
2.4 Ambient and process temperatures
The permissible ambient temperatures must be observed.
Failure to observe the permissible ambient temperatures may result in
severe explosions.
► The permissible ambient temperatures specified in chapter 5.2 must be
observed.
The permissible ambient temperature must not be exceeded.
The T.VIS E-20 control top mounted on valves as described in chapter 6.6 is
installed with a defined distance to the valve process housing and to the piping
systems. The permissible process and media temperatures for the valve process
housing are specified in the operating instructions for the valve. Depending on
the sealing material, process and media temperatures of up to 135 °C (275 °F)
and, for short periods, 150 °C (302 °F) are permissible.
It must be ensured that process and media temperatures higher than the
permissible ambient temperature do not result in an impermissible ambient
temperature for the T.VIS E-20. Particular attention must be paid to adjacent
pipelines, equipment and other system components.
Please take into account the different permissible ambient temperatures for
gases and dusts defined in chapter 5.2.1.
Safety
Ambient and process temperatures
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