About DP Level Technology
Direct mount and remote mount connections are engineered to meet a wide variety of measurement needs. Direct mount connections offer simple installation for mounting transmitters directly to the vessel eliminating the need for additional transmitter mounting provisions. Remote mount connections consist of a seal attached to a transmitter via capillary tube and are used in tuned or balanced systems, high temperature installations and remote transmitter mounting applications.
ERS Systems
Electronic Remote Sensor (ERS™) Systems provide DP Level measurements by calculating differential pressure using two pressure sensors connected by an electrical cable. This solution eliminates the need for long capillaries and heat tracing, cutting response time by up to 90%. Offering accurate measurements for many applications and conditions, such as tall towers, cold climates, and vacuums, ERS Systems can be independently installed and serviced to reduce installation and maintenance costs.
Tuned Systems
A Rosemount Tuned-System™ Assembly measures level using capillaries with two different lengths connected to a transmitter which allows the system to improve response time and compensate for temperature induced errors. Typically, one side of the system is directly mounted to the vessel and the other is mounted remotely via a capillary tube. This system saves time and cost during installation by eliminating additional transmitter mounting components and is a great solution for applications with short spans and high pressures.
Balanced Systems
Balanced Systems are a reliable solution which consists of two, equal-length capillaries connected between the transmitter and seals. The system eliminates the maintenance concerns of wet or dry legs and are good for horizontal flow and indoor applications with little to no temperature variations.
Fill Fluids
Fill Fluid selection significantly impacts the performance of DP Level systems. They can solidify or vaporize due to harsh process environments leading to inaccurate readings. Fill fluids options are available for different application needs, such as temperatures down to -105 °C (-157 °F), up to 410 °C (770 °F) and fluids qualified for hygienic applications.
Remote Seals
The Diaphragm Seal System protects transmitters from hot, cold, corrosive, erosive or viscous processes. Seals are available with differential, gage and absolute pressure transmitters. Advanced welding and assembly techniques prevent weld corrosion and improve seal strength to deliver reliability and performance in the toughest applications.
Thermal Range Expander
Thermal Range Expander enables pressure and level measurements in high temperature processes. This seal system uses two different fill fluids, extending the operating range of the transmitter from temperatures ranging from -75 °C (-103 °F) to 410 °C (770 °F). With an improved response time of up to 46%, thermal range expanders simplify installation and reduce cost by eliminating impulse piping and heat tracing.
Max. Operating Pressure
Up to 10,000psi (689.48 bar)
Process Temperature Range
Based on fill fluid – Maximum 770°F (410°C), Minimum -157°F (-105°C)
Communication Protocol
WirelessHART®
Seal System Type
Direct Mount, Remote Mount, Tuned-System, Balanced System
Transmitter Connection
Welded-Repairable, All Welded
Process Connection
Flanged: ANSI/ASME, EN/DIN, GOST, & JIS
Threaded: NPT, DIN, ISO
Hygienic
Process Wetted Material
316L SST, Alloy C-276, Alloy 400, Tantalum, Gold-plated Alloy 400, Gold-plated 316L SST, see full specs for complete list of materials
Diagnostics
Basic Diagnostics, Loop Integrity, Process Intelligence, Plugged Impulse Line
Certifications/Approvals
NACE®, 3A, hazardous location, see full specs for complete list of certifications
Update Rate
1 sec. to 60 min., user selectable
Power Module Life
Up to 10-year life, field replaceable (order separately)
Wireless Range
Long range (225 m), extended range (800 m), remote (225 m) and high-gain remote (1 km)
Features
- WirelessHART®technology is secure, cost-effective and delivers >99% data reliability
- SuperModule platform offers 15-year limited warranty and stability for field reliability
- Allows for direct mounting, remote mounting and balanced and tuned-systems to meet various application requirements
- Tuned-Systems can reduce temperature effects by 10-20% and improve response time by 80% vs. traditional installations
- Omnidirectional external wireless antennas improve connectivity to remote areas with ranges up to 2/3 mi. (1 km)
- Available in various process connections, including flanged, threaded and hygienic seals for application flexibility
- Optimized and robust seal system construction provides reliability with repairable-welded and all-welded options
- SmartPower™ module provides up to 10-year maintenance-free operation and field replacement without transmitter removal
- Easy installation enables quick instrumentation of measurement points without the cost of wiring
