Proline Promag 55 PROFIBUS DP/PA Safety instructions
Endress+Hauser 5
1 Safety instructions
1.1 Designated use
The measuring device described in these Operating Instructions is to be used only for measuring the
flow rate of conductive liquids in closed pipes.
All fluids (incl. demineralized water) can be metered, provided they have a minimum conductivity
of 5 μS/cm for example:
• acids, alkalis, pastes, paps, pulps, black liquor, green liquor
• drinking water, wastewater, sewage sludge
• milk, beer, wine, mineral water, yoghurt, molasses, fruit mash
• cement, laitance, ore slurry (containing sand or stone), mud, silt
The operational safety of the measuring devices cannot be guaranteed if the system is used
incorrectly or used for purposes other than those intended. The manufacturer accepts no liability for
damages being produced from this.
1.2 Installation, commissioning, operation
Note the following points:
• Installation, connection to the electricity supply, commissioning and maintenance of the device
must be carried out by trained, skilled personnel authorized to perform such work by the facility's
owner-operator. The skilled personnel must have read and understood these Operating
Instructions and follow the instructions they contain.
• The device must be operated by persons authorized and trained by the facility's owner-operator.
Strict compliance with the instructions in the Operating Instructions is mandatory.
• Endress+Hauser is willing to assist in clarifying the chemical resistance properties of parts wetted
by special fluids, including fluids used for cleaning. However, small changes in temperature,
concentration or in the degree of contamination in the process can result in changes of the
chemical resistance properties. Therefore, Endress+Hauser can not guarantee or accept liability
for the chemical resistance properties of the fluid wetted materials in a specific application. The
user is responsible for the choice of fluid wetted materials in regards to their in-process resistance
to corrosion.
• If welding work is performed on the piping system, do not ground the welding appliance through
the flowmeter.
• The installer must ensure that the measuring system is correctly wired in accordance with the
wiring diagrams. The transmitter must be grounded, except in cases where special protective
measures have been taken (e.g. galvanically isolated power supply SELV
or PELV).
• Always note the regulations applicable in your country to the operation, maintenance and repair
of electrical devices. Special instructions relating to the device can be found in the relevant
sections of the documentation.
• The Promag 55 flow measuring device can also measure extremely abrasive fluids, e.g. ore slurry,
cement etc. To protect the measuring tube lining from excessive abrasion, the use of additional
liner protection plates is recommended in such cases.
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