Safety instructions TMT84
4 Endress+Hauser
1 Safety instructions
1.1 Designated use
• The device is a universal and configurable temperature head transmitter for resistance
thermometers (RTD), thermocouples (TC) and resistance and voltage transmitters. The device is
designed for installation in a terminal head form B according to DIN 43729 or field housing.
• The manufacturer cannot be held responsible for damage caused by misuse of the unit.
1.2 Installation, commissioning, operation
Please note the following:
• The device may only be installed, connected, commissioned and maintained by properly qualified
and authorized staff (e.g. electrical technicians) in strict compliance with these Operating
Instructions, applicable standards, legal regulations and certificates (depending on the
application).
• The specialist staff must have read and understood these Operating Instructions and must follow
the instructions they contain.
• The installer must ensure that the measuring system is correctly connected in accordance with
the electrical wiring diagrams.
• Damaged devices which could constitute a source of danger must not be put into operation and
must be clearly indicated as defective.
• Invariably, local regulations governing the opening and repair of electrical devices apply.
1.3 Operational safety
Please pay particular attention to the technical data on the nameplate! The nameplate is located on
the side of the transmitter housing.
Hazardous area
When using in hazardous areas, the national safety requirements must be met. Separate Ex
documentation is contained in these Operating Instructions for measurement systems that are to
mounted in hazardous areas. Strict compliance with the installation instructions, ratings and safety
instructions as listed in this supplementary documentation is mandatory. Ensure you are using the
correct Ex documentation for the relevant Ex-approved device. The number of the related Ex
documentation (XA...) is indicated on the nameplate. You can use this Ex documentation if the two
numbers (i.e. in the Ex documentation and on the nameplate) are identical.
Electromagnetic compatibility
The device meets the general safety requirements of EN 61010 and the EMC requirements of IEC/
EN 61326 as well as NAMUR recommendations NE 21 and NE 89.
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Warning!
Power must be fed to the device from an 9 to 32 VDC power supply in accordance with NEC
Class 02 (low voltage/current) with short-circuit power limit to 8 A/150 VA.
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