Safety Instructions; Designated Use; Installation, Commissioning And; Operational Safety - Endress+Hauser Flowphant T DTT31 Operating Instructions Manual

Safety instructions

1 Safety instructions
1.1

Designated use

The Flowphant T is a flow switch for monitoring mass flow rates in industrial processes. The
device is designed to meet state-of-the-art safety requirements and conforms to applicable
standards and EC regulations. It can, however, be a source of danger if used incorrectly or for
anything other than the designated use.
1.2 Installation, commissioning and operation
Installation, electrical connection, commissioning, operation and maintenance of the measuring
system must be carried out by trained, qualified specialists authorized to perform such work by
the facility' s owner-operator. The specialist must have read and understood these Operating
Instructions and must follow the instructions they contain. The device may only be modified and
repair work carried out if this is explicitly permitted in the Operating Instructions. Damaged
devices which could be a source of danger may not be commissioned and must be labeled and
identified as defective.
1.3

Operational safety

• Functional safety
The Flowphant T flow switch has been developed in accordance with the IEC 61508 and
IEC 61511-1 (FDIS) standards. The device version with a PNP switch output and additional
analog output is equipped with features for detecting and preventing errors within the
electronics and software.
• Ex-area
The Flowphant T is not approved for use in Ex-areas.
1.4

Return

The following procedures must be carried out before a device is returned to Endress+Hauser:
• Always enclose a fully completed "Declaration of Contamination" form with the device. Only
then can Endress+Hauser transport and examine a returned device. A copy of the
"Declaration of Contamination" can be found on the second last page of these Operating
Instructions.
• Remove all fluid residues. This is particularly important if the fluid is hazardous to health, e.g.
flammable, toxic, caustic, carcinogenic, etc.
WARNING
!
Do not return a device if you are not absolutely certain that all traces of hazardous
substances have been removed, e.g. substances which have penetrated crevices or diffused
through plastic.
4
DTT31, DTT35
Endress+Hauser