Siemens SINTRANS LR25 Guia De Inicio Rapido página 25

Maintenance
SITRANS LR250 requires no maintenance or cleaning under normal operating conditions.
Under severe operating conditions, the antenna may require periodic cleaning. If cleaning
becomes necessary:
• Note the antenna material and the process medium, and select a cleaning solution that
will not react adversely with either.
• Remove the instrument from service and wipe the antenna clean using a cloth and
suitable cleaning solution.
Unit Repair and Excluded Liability
For detailed information, please see the inside back cover.
Antenna or electronics/enclosure replacement
• If the antenna requires replacement due to damage or failure, it may be replaced without
the need for re-calibration.
• Changing to a different antenna type may be performed by a Siemens authorized repair
center or personnel.
• If the electronics or enclosure require replacement due to damage or failure, please
ensure the correct antenna version is used, otherwise a re-calibration will need to be
performed by Siemens authorized personnel.
Maximum Process Temperature Chart
Flange Adapter versions of SITRANS LR250
WARNING: Internal temperature must not exceed +80 °C (+176 °F).
Notes:
• The chart is for guidance only and 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.
• It does not take into consideration heating from direct sunshine exposure.
• Use Minimum Value (3.3.1) and Maximum Value (3.3.2) to monitor the internal temperature.
.
Maximum Process
Temperatures versus
allowable ambient
Page EN-24 SITRANS LR250 (FF) – QUICK START MANUAL
process
temperature
Process
o
Temperature ( C)
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