2.4
Monitoring and safety features
Safety features
The transmitter is protected against external
influences and damage by the following
design measures:
• Stable housing
• Degree of protection provided by
enclosure: IP 65 (COM 253 F)
• UV resistance
Monitoring features
In the event of a system error or power failure,
an alarm condition is signalled via a fault-
signalling contact.
2.5
Immunity to interference
This instrument has been tested according to
the applicable European standards for
industrial applications with regard to
electromagnetic compatibility. The transmitter
is protected against external influences and
damage by design measures.
Warning:
The specified immunity to
interference only applies for
devices connected as outlined
in these operating instructions.
2.6
Declaration of conformity
The transmitter COM 223/253 F complies with
the legal demands of the harmonized
European standards.
E+H certfies the compliance with the
standards by using the
4
sign.
OM253 FE02.CHP
Liquisys M COM 223 F / 253 F
Safety instructions
Hauser
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