Watson-Marlow PD/40 - Manual (Page 5)

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2 SAFETY
2.1 Symbols
In this manual the following symbols are used:
WARNING
Procedures which, if not carried out with the necessary care, may result
in serious damage to the pulsation damper or in serious bodily harm.
CAUTION
Procedures which, if not carried out with the necessary care, may result
in serious damage to the pulsation damper, the surrounding area or the
environment.
Remarks, suggestions and advice.
Procedures, remarks, suggestions or advise which refer to use in
potentially explosive atmospheres (ATEX) in accordance with European
guideline 94/9/EC.
2.2 Intended use
The pulsation damper is exclusively designed for the damping of pulses on the discharge side of a
Bredel hose pump. After consultation with your Bredel representative, and only on certain conditions,
the pulsation damper may be used as a pressure relief valve. Every other or further use is not in
conformance with the intended use
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. The manufacturer cannot be held responsible for any damage or
harm resulting from this. The pulsation damper is designed in conformance with the current European
standards and directives. Only use the pulsation damper in conformance with the intended use
described above. If you want to change the application of your pulsation damper, contact your Bredel
representative first.
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The “intended use” as laid down in EN 292-1 is “…the use for which the technical product is intended in accordance with
the specifications of the manufacturer, inclusive of his indications in the sales brochure”. In case of doubt it is the use
which appears to be its intended use judging from the construction, execution and function of the product. Observing the
instructions in the user’s documentation also belongs to intended use.
2.3 Compliance Pressure Equipment Directive
The pulsation dampers as mentioned on the front cover are in full compliance with the European
Pressure Equipment Directive 97/23/EC.
2.4 Use In Potentially Explosive Environments (ATEX)
The pulsation dampers PD/40, PD/65 and PD/100 can be used in a potentially explosive atmosphere
(ATEX). The pulsation damper is not classed as ATEX equipment since it contains no ignition source
from its own. It is considered as part of the pump and the ATEX code for the pump is applicable,
meaning it can operate under the same ATEX environment as the pump it is attached to. In general
this means the damper is suitable for Group II, category 2 and temperature class T4.