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Appendix A: Technical reference
A.3 Maximum Process Temperature Chart
SITRANS LR250 (PROFIBUS PA)
242
Operating Instructions, 08/2014, A5E32221386-AC
A.3
Maximum Process Temperature Chart
WARNING
Exceeded maximum internal and process temperatures
Danger of device malfunction
•
Internal temperature must not 80 ° C (+176 °F).
•
Process temperature must not exceed limits specified by the antenna type.
Note
•
The chart below is for guidance only.
•
The chart does not represent every possible process connection arrangement. For
example, it will NOT apply if you are mounting SITRANS LR250 directly on a metallic
vessel surface.
•
The chart does not take into consideration heating from direct sunlight exposure.
Maximum Process Temperatures versus allowable ambient
①
Internal enclosure temperature
②
Ambient temperature
③
Process temperature (at process
connection)
Where the chart does not apply, please use your own judgement regarding the use of SITRANS
LR250.
If the internal temperature exceeds the maximum allowable limit, a sun shield or a longer nozzle
may be required.
See Minimum Value (3.3.1.) and Maximum Value (3.3.2.) to monitor the Internal Temperature.
Содержание Sitrans LR250
Страница 1: ...Operating Instructions SITRANS LR250 PROFIBUS PA 08 2014 Edition Radar Transmitters ...
Страница 42: ...Installing mounting 4 5 Disassembly SITRANS LR250 PROFIBUS PA 40 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 108: ...Remote operation 7 2 Operating via FDT SITRANS LR250 PROFIBUS PA 106 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 166: ...Parameter reference SITRANS LR250 PROFIBUS PA 164 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 172: ...Service and maintenance 9 4 Disposal SITRANS LR250 PROFIBUS PA 170 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 288: ...LCD menu structure SITRANS LR250 PROFIBUS PA 286 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 289: ...LCD menu structure SITRANS LR250 PROFIBUS PA Operating Instructions 08 2014 A5E32221386 AC 287 ...
Страница 290: ...LCD menu structure SITRANS LR250 PROFIBUS PA 288 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 291: ...LCD menu structure SITRANS LR250 PROFIBUS PA Operating Instructions 08 2014 A5E32221386 AC 289 ...
Страница 292: ...LCD menu structure SITRANS LR250 PROFIBUS PA 290 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 304: ...Index SITRANS LR250 PROFIBUS PA 302 Operating Instructions 08 2014 A5E32221386 AC ...
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