Industrial Flow Measurement 8705 Mag Meters

Industrial Flow Measurement 8705 Mag Meters

Product Description:

The Foxboro 8705 Magnetic Flow Meters are engineered for reliable and precise industrial flow measurement across a wide range of applications. Featuring a rugged stainless-steel body with corrosion‑resistant liners, the 8705 series delivers long‑term durability even in the harshest process environments.

Equipped with advanced electromagnetic sensing technology, these meters provide high accuracy, repeatability, and zero pressure drop, making them ideal for water, wastewater, chemical, and slurry services. The flanged design ensures easy installation and secure integration into existing piping systems, while the digital transmitter interface offers clear, real‑time flow data for process optimization.

With their combination of robust construction, minimal maintenance, and dependable performance, the 8705 Mag Meters have become a trusted choice for industries seeking efficiency, safety, and precision in flow measurement.

Typical Applications of 8705 Mag Meters

• Water & Wastewater Treatment
• Accurate measurement of raw water intake, distribution, and effluent discharge
• Ideal for municipal water supply networks and sewage treatment plants
• Chemical & Petrochemical Industries
• Handles corrosive liquids with PTFE/PFA liners and exotic electrode materials
• Suitable for acids, alkalis, solvents, and process chemicals
• Mining & Slurry Processes
• Robust construction for abrasive slurries, tailings, and mineral suspensions
• Maintains accuracy even in high‑solids environments
• Food & Beverage
• Hygienic liners (PFA, PTFE) for beverages, dairy, and liquid foods
• Non‑intrusive measurement ensures product integrity
• Power & Energy
• Cooling water flow monitoring in power plants
• Chemical dosing and condensate return systems
• Pulp & Paper
• Reliable in fibrous slurries and pulp stock flows
• Resistant to clogging and pressure loss

Frequently Asked Questions – 8705 Mag Meters

Q1. What is the 8705 Mag Meter used for?

The 8705 Mag Meter is designed for accurate measurement of conductive liquids in industrial processes, including water, wastewater, chemicals, slurries, and food-grade fluids.

Q2. How does a magnetic flow meter work?

It operates on Faraday’s Law of Electromagnetic Induction: when a conductive fluid flows through a magnetic field, a voltage is induced. Electrodes inside the meter detect this voltage, which is proportional to the flow rate.

Q3. What are the main advantages of the 8705 Mag Meter?

1. High accuracy (±0.25% of reading)
2. No moving parts, minimizing maintenance
3. Zero pressure drop across the meter
4. Wide range of liner and electrode materials for compatibility with corrosive or abrasive fluids
5. Rugged, all-welded construction for long service life

Q4. What fluids can be measured?

Any conductive liquid (minimum conductivity typically >5 µS/cm), including water, wastewater, acids, alkalis, slurries, and beverages. Non-conductive fluids (like oils or gases) cannot be measured.

Q5. What installation options are available?

The 8705 is a flanged, all-welded meter body. It can be installed in horizontal or vertical pipelines, provided the pipe is always full of liquid.

Q6. What transmitters are compatible with the 8705?

It is designed to work with the Rosemount 8700 series transmitters (e.g., 8712D, 8732C, 8742C), which provide digital outputs, diagnostics, and communication protocols.

Q7. What industries typically use the 8705?

• Municipal water and wastewater
• Chemical and petrochemical
• Mining and slurry handling
• Food and beverage
• Power generation
• Pulp and paper

Q8. What maintenance is required?

Minimal. Since there are no moving parts, routine checks focus on verifying calibration, inspecting electrode condition, and ensuring the meter body remains free of buildup.

Q9. What is the maximum pressure and temperature rating?

• Pressure: up to 40 bar (depending on size and flange rating)
• Temperature: up to 150 °C (depending on liner material)

Q10. How do I select the right liner and electrode material?

Selection depends on the chemical compatibility of the process fluid. For example:

• PTFE/PFA liners for corrosive chemicals
• Polyurethane or rubber liners for abrasive slurries
• Tantalum or platinum electrodes for aggressive acids