Safety instructions Cerabar M, Deltabar M, Deltapilot M / 4...20 mA HART
4 Endress+Hauser
1 Safety instructions
1.1 Designated use
The Cerabar M is a pressure transmitter for measuring level and pressure.
The Deltabar M is a differential pressure transmitter for measuring differential pressure, flow and
level.
The Deltapilot M is a hydrostatic pressure sensor for measuring level and pressure.
The manufacturer accepts no liability for damages resulting from incorrect use or use other than that
designated.
1.2 Installation, commissioning and operation
The device is designed to meet state-of-the-art safety requirements and complies with applicable
standards and EU regulations. If used incorrectly or for applications for which it is not intended,
however, it can be a source of application-related danger, e.g. product overflow due to incorrect
installation or configuration. For this reason, installation, connection to the electricity supply,
commissioning, operation and maintenance of the measuring system must only be carried out by
trained, qualified specialists authorized to perform such work by the facility's owner-operator. The
specialist staff must have read and understood these Operating Instructions and must follow the
instructions they contain. Modifications and repairs to the devices are permissible only if they are
expressly approved in the Operating Instructions. Pay particular attention to the technical data and
information on the nameplate.
1.3 Operational and process safety
Alternative monitoring measures have to be taken while configuring, testing or servicing the device
to ensure the operational and process safety.
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Warning!
Only disassemble the device in pressurless condition!
1.3.1 Hazardous areas (optional)
Devices for use in hazardous areas are fitted with an additional nameplate ( ä 6 ff). If using the
measuring system in hazardous areas, the appropriate national standards and regulations must be
observed. The device is accompanied by separate "Ex documentation", which is an integral part of
these Operating Instructions. The installation regulations, connection values and safety instructions
listed in this Ex document must be observed. The documentation number of the related Safety
Instructions is also indicated on the additional nameplate.
• Ensure that all personnel are suitably qualified.
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