Rosemount 3051S thermal range expander

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The process control industry is often challenged with harsh operating environments where existing technology does not meet measurement needs.

The Rosemount 3051S thermal range expander with UltraTherm 805 oil fill fluid enables pressure measurements by direct-mounting a diaphragm seal system to processes that reach up to 410°C without requiring the challenging impulse piping or heat tracing used in traditional connection technology.

In applications where ambient temperatures drop below ideal operating conditions, system response time becomes slow, resulting in delayed process pressure readings. Traditionally, this problem is solved by using heat tracing, which is costly, maintenance intensive and difficult to install. By using the thermal range expander dual fill fluid seal, the Rosemount 3051S high static differential pressure transmitter can measure pressure at high process and low ambient temperatures.

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