Maximum Process Temperature Chart - Siemens Sitrans LR250 Instruction Manual

Maximum Process Temperature Chart

Flange Adapter versions of SITRANS LR250
WARNING: Internal temperature must not exceed 80 °C (176 °F).
Notes:
• 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 sunshine exposure.
.
Maximum Process Temperatures versus allowable ambient
Process Temperature (
Where the chart does not apply, please use your own judgement regarding the use of
SITRANS LR250.
See Minimum Internal Temperature (3.3.7.) on page 77 and Maximum Internal
Temperature (3.3.8.) on page 77 to monitor the Internal Temperature.
If the internal temperature exceeds the maximum allowable limit, a sun shield or a longer
nozzle may be required.
7ML19985JF02 SITRANS LR250 (PROFIBUS PA) – INSTRUCTION MANUAL
process
temperature
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internal enclosure
temperature
ambient
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process
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