Rosemount 8705 flanged magnetic flow meter sensors are fabricated from stainless and carbon steel, and welded to provide a hermetic seal that protects against moisture and other contaminants. The sealed housing ensures maximum flowtube sensor reliability by protecting all internal components and wiring from the most hostile environments .

The obstructionless design features no moving parts, minimizing maintenance and repair. The sensor features a removable and replaceable terminal block that enables easy field repair without replacing the entire meter. Optional secondary containment compartments surround electrodes and capture any potential process fluid leakage, and an optional lining protector guards against installation damage and leading-edge wear .

Rosemount magmeter systems use pulsed DC technology that provides continuous automatic zeroing to compensate for variations in the process environment. Process liquid must have a conductivity of 5 microsiemens/cm or greater .

Rosemount 8700 series flowtubes are interchangeable with both the 8712D and 8732 flow transmitters. System accuracy is maintained regardless of line size or optional features. Each nameplate has a sixteen-digit calibration number that can be entered into a transmitter through the Local Operator Interface or HART Communicator .