Emerson Rosemount 8700 Magnetic Flowmeter
Overview
The Emerson Rosemount 8700 magnetic flowmeter platform delivers long-lasting, reliable performance in even the most challenging process and water applications. Built around an all-welded sensor construction that provides a true hermetic seal, the Rosemount 8700 protects internal components and wiring from moisture and aggressive environments while its obstructionless, no-moving-parts design keeps maintenance requirements to a minimum across a long service life.
As the official authorized partner and exclusive regional representative for Emerson, Seven Star LLC proudly supplies the Rosemount 8700 to process plants, water utilities, and industrial facilities throughout the Sultanate of Oman and the wider GCC. Every meter shipped carries full manufacturer warranty and the regional calibration and technical support that reliable flow measurement demands.
Measurement Principle
The Emerson Rosemount 8700 operates on Faraday’s law of electromagnetic induction: a magnetic field is applied across the sensor’s measuring tube, and as conductive liquid flows through it, a voltage proportional to the flow velocity is induced and detected by a pair of measuring electrodes. Because this principle depends only on the fluid’s conductivity and velocity, not its viscosity, density, or particulate content, the Rosemount 8700 measures a wide range of conductive liquids, including slurries and wastewater, with consistent accuracy.
The practical result is a flowmeter with no moving parts to wear, no pressure drop across the measuring section, and no exposure to clogging or abrasion damage from mechanical components. Combined with the sensor’s hermetically sealed, all-welded construction, this gives the Rosemount 8700 platform exceptional reliability in demanding process, wastewater, and outdoor installations.
Engineering Design of the Emerson Rosemount 8700
The Rosemount 8700 sensor is available in line sizes from 0.5 in to 8 in (15 mm to 200 mm), delivering accuracy of up to 0.15% of volumetric flow rate over a 13:1 turndown and 0.25% over 40:1 turndown. The all-welded sensor housing forms a hermetic seal that protects the electrode and coil assembly from moisture and contamination, while a removable and replaceable terminal block allows field repairs without requiring the full meter to be replaced or removed from the line. Optional secondary containment compartments around the electrodes capture any potential process fluid leakage, and an optional lining protector guards against installation damage and leading-edge wear.
The platform pairs the 8700 series sensor with the 8712 or related Rosemount transmitter, available in integral or remote-mount configurations, supporting standard 4-20 mA/HART output for straightforward integration into existing control loops. This modular sensor-and-transmitter architecture lets plant engineers standardize on a single magnetic flowmeter platform across multiple process and water applications.
Key Features
The Emerson Rosemount 8700 combines rugged, hermetically sealed construction with field-serviceable design for long-term reliability:
- All-welded sensor housing provides a hermetic seal against moisture and contaminants for maximum protection.
- Accuracy up to 0.15% of volumetric flow rate over 13:1 turndown, 0.25% over 40:1 turndown.
- Removable and replaceable terminal block enables field repairs without process shutdown.
- Line sizes from 0.5 in to 8 in (15 mm to 200 mm) cover a wide range of process and water applications.
- Optional secondary containment compartments capture potential process fluid leakage around electrodes.
- Optional lining protector guards against installation damage and leading-edge wear.
- Obstructionless design with no moving parts minimizes maintenance and repair requirements.
- Standard 4-20 mA/HART output integrates directly into existing control and monitoring loops.
Industrial Applications
The Emerson Rosemount 8700 is widely used across water and wastewater treatment, chemical processing, and general industrial applications wherever reliable, low-maintenance measurement of conductive liquids is required. In Oman’s water and wastewater sector, the Rosemount 8700’s hermetically sealed, all-welded construction is particularly valued for outdoor and buried installations exposed to harsh environmental conditions.
As the officially authorized partner for Emerson, Seven Star LLC distributes the Rosemount 8700 to municipal water authorities, desalination plants, and industrial facilities across Muscat and the Sohar and Salalah economic zones. Its field-repairable terminal block and rugged sealed construction make it well suited for remote pump station and distribution network installations across the GCC where minimizing service visits is a priority.
Technical Specifications
The table below summarizes the core specifications of the Emerson Rosemount 8700 magnetic flowmeter.
| Parameter | Specification |
|---|---|
| Model | Emerson Rosemount 8700 Series (8705/8712) |
| Measuring Principle | Electromagnetic (Faraday’s Law) |
| Line Sizes | 0.5 in to 8 in (15 mm to 200 mm) |
| Accuracy | Up to 0.15% of rate (13:1 turndown); 0.25% (40:1 turndown) |
| Sensor Construction | All-welded, hermetically sealed housing |
| Communication | 4-20 mA / HART |
| Serviceability | Removable, replaceable terminal block for field repair |
| Options | Secondary containment compartments, lining protector |
Why Choose Seven Star LLC for Emerson Rosemount Magnetic Flowmeters
The Rosemount 8700’s field-repairable terminal block is only a real advantage if a genuine replacement part is actually available when a meter needs service in the field — a feature on a datasheet does not help a maintenance team stuck waiting weeks on an international backorder. Seven Star LLC stocks and sources genuine Rosemount terminal blocks and related spares regionally, and works with your team to confirm the correct 8700 line size and turndown configuration for your specific process or water application before order confirmation, backed by our authorized Emerson partnership across Oman and the wider GCC. We also support water utilities and industrial plants across Muscat, Sohar, and Salalah with planning for buried and outdoor installations, where the sensor’s hermetically sealed, all-welded construction genuinely matters for long-term reliability.
Request a Quote for Emerson Rosemount 8700 Magnetic Flowmeter
Seven Star LLC invites process engineers, water utility operators, and procurement teams to submit a formal RFQ for the Emerson Rosemount 8700 magnetic flowmeter. Regional warehouse stock in Oman enables fast delivery across the GCC, and our instrumentation division can provide the full technical datasheet and sizing support needed to specify the correct line size and configuration for your application. As the authorized partner for Emerson in Oman and the GCC, Seven Star LLC backs every Rosemount 8700 shipment with genuine manufacturer warranty and local calibration and technical support.
Related Products
Emerson is a global technology and engineering leader providing innovative automation, control, and measurement solutions that help industries operate more efficiently, safely, and sustainably. With over 130 years of experience, Emerson’s products and technologies serve critical sectors such as oil & gas, chemical processing, power generation, and manufacturing.
The company’s portfolio includes PLCs, transmitters, valves, flow meters, and industrial control systems that deliver precision, reliability, and energy efficiency. Emerson’s continuous investment in digital transformation and IIoT solutions has positioned it at the forefront of smart industrial operations worldwide.
Seven Star LLC supplies genuine Emerson products to clients across the Middle East, offering trusted equipment and expert support to ensure optimized performance and seamless integration for complex industrial applications.
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