Siemens SITRANS FUH1010PVX, Operating Instructions Manual, Page: 156 / 226

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1010BXFM-3
Section 3
Use the thermal couplant compound (CC#117) between the face of the RTD element and the
pipe surface to improve the conductivity of the metal-to-metal contact.
Keep the RTD out of direct sunlight or other non-pipe sources of heat or cold that may
affect their temperature sensing. The foam insulator supplied helps in this regard, but
consider using additional pipe insulation for all installations exposed to extreme ambient
conditions. Consider mounting the RTD under the pipe in order to keep it out of direct
sunlight.
In installations where RTD elements are exposed to harsh conditions such as condensation,
salt spray, etc., use CC#110 couplant compound to coat the connection between the cable
and the RTD sensor. Consult Installation Drawing 991TN-7 for details.