Rosemount 8705 Flanged Magnetic Flow Meter Sensors

Rosemount 8705 Flanged Magnetic Flow Meter Sensors provide long-lasting, reliable performance in even the most challenging applications. An all-welded construction provides a hermetic seal that protects against moisture and other contaminants. The sealed housing ensures maximum sensor reliability by protecting all internal components and wiring from even the most aggressive environments. A removable and replaceable terminal block enables easy repair in the field without the need to replace the entire meter.

• For maximum protection, a fully welded sensor housing provides a hermetic seal
• Avoid process shutdown with a removable and replaceable terminal block that enables repairs in the field
• Capture any potential process fluid leakage with optional secondary containment compartments to surround electrodes
• Ensure reliability in the harshest environments with an all-welded sensor housing
• Guard against installation damage and leading-edge wear with an optional lining protector
• Minimize maintenance and repair with an obstructionless design featuring no moving parts

1. Exceptional Measurement Accuracy and Reliability

· Utilizes field-proven magnetic flow measurement technology to deliver highly accurate and repeatable flow measurement, with accuracy up to ±0.5%.

· No moving parts; measurement is unaffected by changes in fluid density, viscosity, temperature, or pressure, ensuring high reliability and minimal maintenance.

2. Robust Flanged Design

· The sturdy flanged connection ensures stability and sealing integrity under high-pressure and high-vibration conditions, making it suitable for harsh industrial environments.

· Offers various flange standards (e.g., ANSI, DIN, JIS) for easy integration with existing piping systems.

3. Superior Slurry Measurement Capability

· Employs patented AC™ (Alternating Current) Excitation Technology to effectively overcome slurry noise, providing a stable, noise-free flow signal. It is the ideal choice for measuring complex media like ore slurries, sludge, and pulp.

4. Flexible Lining and Electrode Options

· A wide selection of lining materials (e.g., Polyurethane, Rubber, PTFE, PFA) and electrode materials (e.g., 316L Stainless Steel, Hastelloy C-276, Tantalum, Titanium) allows it to handle everything from ordinary water to highly corrosive media, effectively extending sensor life.

5. Empty Pipe Detection and Diagnostics

· In conjunction with the transmitter, the sensor can detect an empty pipe condition and automatically alarm or zero the output, preventing erroneous measurement.

· Supports advanced diagnostics for predictive maintenance.

· Measurement Principle: Faraday's Law of Electromagnetic Induction

· Measured Fluid: Conductive liquids with conductivity ≥5 μS/cm

· Accuracy: ±0.5% of rate (with paired transmitter)

· Repeatability: ±0.1% of rate

· Pressure Rating: Up to ANSI 2500

· Size Range: DN 15 to DN 1200 and above

· Lining Materials: Polyurethane, Hard Rubber, PTFE, PFA, etc.

· Electrode Materials: 316L SS, Hastelloy C-276, Tantalum, Titanium, etc.

· Connection: Flanged

· Certifications: SIL 2/3, ATEX, IECEx

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