Prevent DP level capillary systems from becoming unresponsive
Enhance response time by 46% over single fill fluid systems
Measure reliably at ambient temperatures down to -75°C (-103°F) without the need for heat traced capillary systems

Simplify installation and reduce cost

Eliminate heat tracing and routine maintenance costs
Remove impulse piping and decrease installed cost

How it Works…

The Rosemount Thermal Range Expander is a seal system that uses two different fill fluids to extend the operating temperature range of the system.

A high temperature fill fluid, which is next to the hot process, is kept warm enough to stay responsive. A second fill fluid, located on the other side of the intermediate diaphragm, operates over a wide ambient temperature range. The Thermal Range Expander can operate in ambient temperatures as low as -75°C (-103°F), and process temperatures up to 410°C (770°F). This improves response time up to 46% and eliminates the need for mechanical heat tracing.

Expand Capabilities with Rosemount Remote Seals

Available in 6 remote seal configurations:

Flush Flanged (FF)
Remote Flanged (RF)
Extended Flanged (EF)
Remote Threaded (RT)
Flush Flanged Ring Type Joint (FC)
Ring Type Joint (RC)

Install in challenging applications:

High temperature processes
Corrosive mediums

Eliminate issues with impulse piping:
Plugging
Leaking
Freezing

Specifications

Measurement Type:Differential, gage, or absolute pressure measurement
Product Configurations:Single Remote Seal Configurations: Direct or Remote Mount Styles
Dual Remote Seal Configurations: ERS System, Tuned-System Assemblies, or Balanced System
Output:4-20mA HART™, FOUNDATION™ fieldbus, WirelessHART™
Reference Accuracy:Up to 0.055% of Span
Rangedown:150:1
Warranty:15-year
Complete Specifications (PDF @ 7500Kb)

Rosemount - Model 3051S -Thermal Range Expander

What if you could...

Thermal Range Expander

A high temperature fill fluid, which is next to th...