Rosemount 8705 Flanged Magnetic Flow Meter Sensors
Welded, sealed coil housing
39.37 ft/s (12 m/s) upper range limit
Pulsed DC coil drive power
Standard process design
Description
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 in the 8705 flanged flowtube ensures maximum flowtube sensor reliability by protecting all internal components and wiring from the most hostile environments.
The Rosemount 8705's obstructionless design features no moving parts, which minimizes maintenance and repair. The sensor features a removable and replaceable terminal block that enables easy repair in the field without the need to replace the entire meter. The 8705 also offers optional secondary containment compartments that surround electrodes and capture any potential process fluid leakage. An optional lining protector is also available to guard 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 (5 micromhos/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 Rosemount 8705 flanged flowtube nameplate has a sixteen-digit calibration number that can be entered into a transmitter through the Local Operator interface or the HART Communicator, depending on model.
Instrumart is an IDWR-approved flow meter vendor
The Rosemount 8700 series flanged flowtube sensors is a IDWR-certified flow meter as outlined in the Idaho Department of Water Resources state order requiring flow meters to be installed by water users that divert water in regulated areas from both ground and surface water sources. This flow meter was tested by the staff at Utah State's NIST traceable lab and passed all requirements set by the IDWR and Idaho Department of Agriculture. If you have any questions about this flow meter or what IDWR-approved flow meter best fits your application, please ask one of our helpful engineers.
Specifications
Accuracy
Up to 0.15% of volumetric flow rate accuracy over 13:1 flow turndowns, 0.25% over 40:1 flow turndown
Line Sizes
½-36 inch (15-900 mm)
Liner Materials
PTFE, ETFE, PFA, Polyurethane, Neoprene, Linatex Natural Rubber
Electrode Materials
316L Stainless Steel, Nickel Alloy, Platinum, Tantalum, Titanium
Flange Ratings
ASME B16.5 Class 150-2500DIN PN 10-40AS 2129 Table D and EAWWA C207 Table 3 Class D (30-36 inch only)
Submergence Protection
IP68 (Recommended with sealed cable glands)
Interchangeability
Compatible with all 8700 Series transmitters
Compatible with legacy transmitters: 8712D, 8712C, 8732C, 8742C
Features
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