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Rosemount 8711
Accuracy Up to 0.15% of volumetric flow rate accuracy over 13:1 flow turndowns, 0.25% over 40:1 flow turndown
Line Sizes 0.15-8 inch (4-200mm)  
Liner Materials ETFE, PTFE, and PFA 
Electrode Materials 316L Stainless Steel, Nickel Alloy, Platinum, Tantalum, Titanium Consult factory for additional material options  
Flange Ratings ASME B16.5 Class 150-300
DIN PN 10-40
Interchangeability Compatible with all E-Series transmitters
Compatible with Legacy transmitters

  •  8712D
  •  8712C
  •  8732C
  •  8742C

 

The flangeless design of the 8711 wafer sensor make it an economical, compact, and lightweight alternative to flanged magnetic flowmeters. Alignment rings provided with every 8711 center the sensor in the process line and make installation easier.

  •  Lightweight, easy-to-install sensor for many common flow applications
  •  Wide range of sizes and electrode materials to meet your needs
  •   Cost-effective design

Benefits

  •  Flangeless construction for minimum size and weight
  •  Available in sizes from 0.15 to 8 inches (4 to 200 mm)
  •  ETFE-lined sensors comes with a choice of electrode materials to suit most process fluids
  •  PTFE-lined sensors are available for applications requiring FDA approved lining material

Applications

The 8700 Magnetic Flowmeter Systems provide obstructionless flow measurement that is ideal for metering any conductive fluid. A wide choice of construction materials provides compatibility with virtually all applications, from highly corrosive liquids to fibrous slurries often considered difficult to measure with other devices. Rosemount Magnetic Flowmeters offer the benefit of measuring flow in a package virtually unaffected by density, temperature, pressure, and viscosity change.

Availability

With a wide range of liner and electrode materials available, the Rosemount 8700 Series Magnetic Flowmeter family is suitable for virtually any conductive liquid application. Rosemount Magnetic Flowmeters offer the benefit of measuring flow in a package unaffected by density, temperature, pressure, and viscosity change.

 Step 1: Flow Sensor Type

  Type Application Notes  Accuracy Option  Line Sizes Coil Drive Power 

8705  Standard process design  0.25% Standard
0.15% High 
15 - 900 mm
0.5 - 36 inch
Pulsed DC

8711  Compact light-weight  0.25% Standard
0.15% High 
4 - 200 mm
0.15 - 8 inch
Pulsed DC 

8721  Designed for food & beverage and life science, 3-A and EHEDG  0.5% Standard
0.25% High
15-100 mm
0.5 - 4 inch

 
Pulsed DC 

8707  Best in P&P, M&M slurry flows, and noisy applications  0.5% Standard
0.25% High
80 - 900 mm
3 - 36 inch
High-Signal
Pulsed DC

 

Step 2: Liner Material Selection
  Liner  Notes

Temp Limits 

Type  and Line Sizes   
PFA BEST FLUOROPOLYMER
Excellent resistance to chemicals and abrasion. Suitable for any application.
-20 to 350°F (-29 to 177°C Flange
15 - 350 mm
0.5 - 14 inch
Wafer
4 - 8 mm
0.15 - 0.3 inch
PTFE BETTER FLUOROPOLYMER
More cost effective than PFA. Excellent chemical resistance, but less abrasion resistance than PFA.
-20 to 350°F (-29 to 177°C Flanged
15 - 900 mm
0.5 - 36 inch
Wafer
15 - 200 mm
0.5 - 8 inch
ETFE GOOD FLUOROPOLYMER
Similar chemical and abrasion resistance to PTFE, but a lower maxium temperature an more expensive.
-20 to 300°F (-29 to 149°C) Flanged
15 - 400 mm
0.5 - 16 inch
Wafer
15 - 200 mm
0.5 - 8 inch
Polyurethane Typically applied to clean water (no chemicals). Abrasion resistant to slurries with small particles. 0 to 140°F (-18 to 60°C) Flanged
15 - 900 mm
0.5 - 36 inch
Neoprene Typically applied to water and sea water. Abrasion resistant to slurries with small particles. 0 to 185°F (-18 to 85°C) Flanged
80 - 1800 mm*
1.5 - 72 inch
Linatex Typically applied to mining slurries, abrasion resistant to larger debris. 0 to 158°F (-18 to 70°C) Flanged
80 - 900 mm
1.5 - 36 inch

Step 3: Electrode Type and Material Selection
  Electrode Type Application Notes
Button  Standard electrode design. Use for most applications, especially where abrasion is a concern. Has fair resistance to coating which can be improved by properly sizing sensor. 
Bullet-nose  Use where coating is a concern and no solids are present. Bullet-nose electrode should not be used in abrasive or slurry applications as the particles will result in increased process noise on the electrodes. 
 
Electrode Material Application Notes
316L SST Standard electrode material. Compatible with most low concentration water based applications. Avoid using stainless in higher concentration acid applications.
Nickel Alloy 276 Use in medium to high concentration acids where SST is not acceptable. Use in applications with high chloride concentrations, such as sea water.
Platinum
(80% Platinum, 20% Iridium)
Ideal for liquor applications found in pulp and paper industry. Also ideal as a spare electrode option to cover nearly every application in a plant. Compatible with nearly every process fluid.
Tantalum Ideal for high concentration acid flows such as hydrochloric and hydrofluoric acids.
Titanium Ideal for high concentration caustic (base) applications such as sodium and potassium hydroxides.

Step 4: Transmitter Selection
  Type Notes  Accuracy Option Power Supply User Interface Output Protocol LOI

8732  Integral or remote mounting  0.25% Std
0.15% High
Global AC ⁄ DC  HART®, Foundation™ fieldbus optical switch LOI or display only

8712 Remote wall  0.25% Std
0.15% High 
Global AC ⁄ DC  HART Dedicated button LOI 
8712 High Signal Remote wall. Compatible only with 8707 flowtube 0.5% Std
0.25%
115V AC HART
Dedicated button LOI

Step 5: Diagnostics and Enhanced Features
  Type Notes  Availability
Standard Diagnostics Transmitter hardware fault; transmitter software fault; sensor coil fault; empty pipe With every E-Series transmitter
  D1 High accuracy option (0.15%) 8732 and 8712
  AX Enhanced DI/DO capability 8732 and 8712
 
  HART/FF    
  DA1 ⁄ D01 Diagnostics suite includes: ground and wiring fault detection, high process noise detection. 8732 and 8712
  DA2 ⁄ D02 Diagnostic suite includes: 8714i internal meter verification 8732 and 8712

 

Download:
  • Product Data Sheet Rosemount 8700 Series Magnetic Flowmeter Systems
  • Technical Data Sheet Magnetic Flowmeter Material Selection Guide