GEA T.VIS E-20, Инструкция по эксплуатации

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2.6 Subsequent changes
No technical modifications may be made to this component. Otherwise, you must
subject to a new conformity procedure yourself in accordance with the applicable
EC directives.
In general, only original spare parts of GEA Tuchenhagen GmbH should be
installed. This ensures that the component always works properly and efficiently.
Specific explosion-proof equipment - as defined in chapter 5.6 - is supplied with
the T.VIS E-20 and must be used.
2.7 IP Protection classes
The control top T.VIS E-20 in its standard version fulfils the requirements of
protection class IP66 (DIN EN 60529). Models in protection classes IP67 or
IP69k (both DIN EN 60529) are also available.
IP classes provide information about the degree of protection an electrical device
housing provides against the ingress of solids (first digit) or humidity (second
digit). They attempt to reproduce common kinds of failure and assign so-called IP
codes to the protected systems. The letters IP stand for 'International Protection'
and are prefixed to the code numbers.
Position of the digit Explanation
1. digit* Protection against solids
6 Dust tight
2. digit* Protection against humidity
6 Protected against powerful water jets
7 Protected against temporary immersion
9k Protected against high pressure spray downs
*For additional digits and more detailed descriptions please refer to the pertinent standard.
Digits not to be mentioned can be replaced by the letter x (e. g. IPx6).
Concerning the ingress of humidity, IPx6 includes all lower IP classes. This is,
however, not the case for the higher protection class IPx7!
If cleaning agents are used that significantly reduce the surface tension and/or if
high-pressure cleaners are used, we recommend using IP69k rated equipment as
an option.
Hint!
The specified IP classes only apply if the connectors are connected
correctly, if the cable gland is properly sealed and if the control top is
fitted on the valve, see Chapter 6, Page 47.
2.8 General safety instructions and dangers
The component is safe to operate. It was built according to state-of-the-art
science and technology.
Nevertheless, dangers can arise from the component, if:
Safety
Subsequent changes
430BAL013985EN_6
25.04.2023 23