Endress+Hauser iTEMP TMT125 Bedienungsanleitung Seite 23

TMT125
Hazardous areas
When using in hazardous areas, the national safety requirements must be met. Separate Ex
documentation applies to measuring systems that are used in hazardous areas. Strict compliance
with the installation instructions, ratings and safety instructions as listed in this supplementary
documentation is mandatory. The documentation number of this document (XA) is also
indicated on the nameplate.
• The device may be installed in category 2G (Zone 1) or category 3G (Zone 2) of a hazardous
area.
• For category 2G (Zone 1) applications the type of protection is "Intrinsic Safety". The
associated field devices could operate in a category 1G (Zone 0) or category 1D (Zone 20)
location.
• For category 3G (Zone 2) applications the type of protection is EEx n A. The device could be
connected to Non IS H1 segment. Independent of the type of protection of the H1 bus the
inputs remains intrinsically safe.
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Warning!
Devices that are operated in general electrical systems must not thereafter be operated in
electrical systems that are connected in hazardous areas.
Repairs
Repairs that are not described in the Operating Instructions (on CD-ROM) may only be carried
out directly at the manufacturer's site or by the service team.
Electromagnetic compatibility
The measuring system complies with the general safety requirements in accordance with IEC
61010 and the EMC requirements of IEC 61326 and NAMUR Recommendation NE 21.
"
Caution!
Power must be supplied to the device from a 9 to 32 VDC power supply in accordance with NEC
Class 02 (low voltage/current) with short-circuit power limitation to 8 A/150 VA.
Return
Follow the instructions on returning the device as outlined in the Operating Instructions on the
CD-ROM provided.
Endress+Hauser
Safety instructions
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