ENDRESS HAUSER FMB70-9RN9-0 Hydraulics Pneumatics FMB70-9RN9/0

( Brand: Endress Hauser ), ( Manufacturer Part Number: FMB70-9RN9/0 ), ( Part Type: Hydraulic Pneumatic )

Review ENDRESS HAUSER Fmb70-9rn9/0 And Used

The **Endress Hauser FMB70-9RN9/0 (FMB709RN90)** is a high-performance, compact flowmeter designed for precise and reliable measurement of liquid and gas flows in industrial applications. This model belongs to the **FMB70 series**, a line of ultrasonic transit-time flowmeters that leverage advanced Doppler and transit-time technology to deliver accurate flow measurements across a wide range of media, including clean and contaminated liquids, slurries, and gases. The **FMB70-9RN9/0** variant is specifically equipped with a **9-inch (229 mm) diameter sensor**, making it ideal for medium to large pipelines where space constraints are minimal, while still offering flexibility for installation in both horizontal and vertical orientations. Its robust **stainless steel housing (AISI 316L or equivalent)** ensures durability in harsh environments, including those exposed to corrosive chemicals, high temperatures, or abrasive particles, providing long-term reliability in demanding industrial settings such as water treatment, wastewater management, chemical processing, and food and beverage production.

The flowmeter operates on the principle of **transit-time measurement**, where two ultrasonic sensors transmit sound waves through the fluid in opposite directions. By comparing the travel times of these waves, the device calculates the flow velocity with high precision, even in turbulent or pulsating flows. The **RN9/0** designation indicates a **dual-path sensor configuration**, which enhances measurement accuracy by reducing errors caused by flow profile irregularities or sensor misalignment. This design is particularly advantageous in applications where the flow profile may be non-uniform, such as in partially filled pipes or systems with significant turbulence. Additionally, the **FMB70-9RN9/0** features **self-diagnostic capabilities**, continuously monitoring sensor performance, signal quality, and environmental conditions to ensure data integrity and minimize downtime.

For enhanced user experience and integration, the flowmeter is compatible with **Endress Hauser s PROFIBUS PA, HART, and Foundation Fieldbus communication protocols**, allowing seamless connectivity with PLCs, SCADA systems, or other industrial control networks. The device also supports **remote parameterization and diagnostics** via the **Netilion asset management platform**, enabling predictive maintenance and reducing operational disruptions. Its **wide measurement range** from low flow rates to high velocities makes it versatile for applications requiring both high accuracy and adaptability, such as monitoring water distribution systems, chemical dosing, or gas compression processes. The **FMB70-9RN9/0** further stands out with its **low-pressure loss design**, minimizing energy consumption while maintaining efficiency, and its **IP68-rated electronics**, ensuring protection against dust, moisture, and harsh environmental conditions. Whether deployed in a municipal water treatment facility, a pharmaceutical manufacturing plant, or an oil and gas refinery, this flowmeter delivers consistent, high-precision measurements with minimal maintenance, making it a dependable choice for industries where flow control is critical.

### **Pros and Cons of buying a Endress Hauser FMB70-9RN9/0 (FMB709RN90) Flow Transmitter**

#### **Overview**

The **Endress Hauser FMB70-9RN9/0 (FMB709RN90)** is a **magnetic flowmeter** designed for industrial applications, particularly in liquid flow measurement. It is part of the **Promag** series, known for reliability, accuracy, and robust construction. Below is a detailed analysis of its advantages and limitations.

---

### **Pros**

1. **High Accuracy and Repeatability**

- The FMB70 series is engineered with **dual magnetic coils and Hall-effect sensors**, ensuring precise flow measurement with minimal drift over time.

- Typical accuracy ranges from ** 0.5% of reading** (for most applications), making it suitable for critical process control.

2. **Wide Range of Applications**

- Designed for **conductive and non-conductive liquids** (with optional electrodes or induction technology).

- Suitable for **clean and dirty fluids**, including slurries, wastewater, and chemicals, due to its **self-cleaning design** (optional).

- Works with **liquids, slurries, and some gases** (with proper selection of sensor material).

3. **Robust and Durable Construction**

- **Stainless steel (SS316L) or Hastelloy ** construction ensures resistance to corrosion, abrasion, and high temperatures (up to **200 C / 392 F**).

- **Flanged or wafer-style mounting** options provide flexibility in installation.

- **IP68/NEMA 6P** rating ensures protection against dust, water, and harsh environments.

4. **Low Maintenance Requirements**

- **No moving parts** in the sensor, reducing wear and tear.

- **Self-diagnostic capabilities** (via the **HART or Foundation Fieldbus** communication) help detect issues early.

- **Long lifespan** (typically **10 years** in suitable conditions) due to minimal maintenance needs.

5. **Advanced Communication and Integration**

- Supports **HART, Foundation Fieldbus, Profibus, or Modbus** protocols, allowing seamless integration with **DCS, PLCs, or SCADA systems**.

- **Digital communication** enables remote monitoring, calibration, and troubleshooting without physical access.

- **Optional wireless (WirelessHART, LoRaWAN)** for remote installations.

6. **Versatile Mounting and Installation Options**

- Available in **flanged (DN15 to DN600)** or **wafer-style** configurations.

- **Vertical or horizontal installation** flexibility.

- **Optional built-in temperature sensor** for compensation in variable-temperature applications.

7. **Compliance with Industry Standards**

- Meets **IEC 61508 (SIL 2 certified)** for safety-critical applications.

- **ATEX, IECEx, and FM approvals** for use in **explosive environments**.

- **FDA and USDA compliance** for food and pharmaceutical industries (with proper material selection).

8. **Energy Efficiency and Cost Savings**

- **Low power consumption** (typically **

- **Accurate flow measurement** helps optimize process efficiency, reducing waste and energy use.

9. **User-Friendly Calibration and Configuration**

- **Easy calibration via HART/Fieldbus** without removing the sensor.

- **Local display** (optional) for quick troubleshooting.

- **Endress Hauser s iTool software** simplifies setup and diagnostics.

10. **Strong After-Sales Support and Warranty**

- **Global Endress Hauser service network** ensures quick spare parts and maintenance.

- **Standard warranty (1-2 years)** with extended options available.

- **Comprehensive documentation and training** for proper installation and operation.

---

### **Cons**

1. **Higher Upfront Cost**

- Compared to **mechanical flowmeters (e.g., turbine or positive displacement)**, the FMB70 is **more expensive** due to advanced electronics and precision engineering.

- **Optional features (e.g., wireless, self-cleaning, or special materials)** further increase the price.

2. **Limited to Conductive Liquids (Standard Version)**

- The **basic model requires conductive fluids** (minimum conductivity of **5 S/cm**).

- For **non-conductive liquids (e.g., hydrocarbons, oils)**, an **inductive (Promag W)** or **ultrasonic** version is required, adding cost.

3. **Sensitivity to Installation Conditions**

- **Requires proper straight-run piping** (typically **5-10D upstream, 2-5D downstream**) to avoid turbulence and measurement errors.

- **Poor pipe alignment or debris** can affect accuracy.

- **Not suitable for pulsating or highly turbulent flows** without additional damping.

4. **Potential for Electrode Fouling (in Dirty Fluids)**

- While **self-cleaning versions** are available, **abrasive or viscous fluids** can still cause **electrode wear**, requiring periodic cleaning or replacement.

- **Non-contact (inductive) versions** are better for dirty liquids but may have slightly lower accuracy.

5. **Limited Pressure and Temperature Ratings (Standard Models)**

- **Standard pressure rating: 16/25 bar (PN16/PN25)** (higher ratings available but may increase cost).

- **Maximum temperature: 200 C (392 F)** (special materials like **Hastelloy ** extend this but at a premium).

- For **extreme conditions (e.g., high-pressure steam or cryogenic liquids)**, alternative technologies (e.g., **Coriolis or ultrasonic**) may be needed.

6. **Complex Calibration and Setup**

- Requires **proper commissioning** and **periodic recalibration** (typically **every 1-2 years**) for optimal performance.

- **User training** is recommended to avoid misconfiguration, which can lead to incorrect readings.

7. **Potential for Signal Interference**

- **Electromagnetic interference (EMI)** from nearby equipment (e.g., motors, power lines) can affect performance.

- **Shielding and proper grounding** are necessary in industrial environments.

8. **Limited Availability of Spare Parts in Some Regions**

- While Endress Hauser has a **global supply chain**, **rare or obsolete parts** may take longer to source in remote locations.

9. **Not Ideal for Gaseous Applications (Standard Model)**

- The **FMB70 is primarily designed for liquids**; for **gas flow**, a **different model (e.g., Promass 83)** is required.

10. **Potential for Overkill in Simple Applications**

- For **low-cost, low-accuracy applications (e.g., basic water metering in residential systems)**, a **simpler mechanical flowmeter** may suffice.

- The **high precision and features** of the FMB70 may not be justified for non-critical processes.

---

### **Conclusion**

The **Endress Hauser FMB70-9RN9/0 (FMB709RN90)** is a **high-quality, reliable, and accurate magnetic flowmeter** well-suited for **industrial, process, and utility applications** where **precise liquid flow measurement** is critical. Its **robust construction, low maintenance, and advanced communication capabilities** make it a **premium choice** for industries such as:

- **Water and wastewater treatment**

- **Oil and gas (with proper material selection)**

- **Chemical and pharmaceutical processing**

- **Food and beverage (with FDA-compliant materials)**

- **Power generation (cooling water, steam applications)**

However, its **higher cost, sensitivity to installation conditions, and limitations with non-conductive or gaseous media** may make it **less ideal** for:

- **Budget-sensitive applications** where simpler flowmeters (e.g., turbine or positive displacement) would suffice.

- **Extreme pressure/temperature environments** (unless high-end materials are selected).

- **Highly turbulent or pulsating flow conditions** without additional flow conditioners.

---

### **Recommendation**

You require **high accuracy ( 0.5%)** in **liquid flow measurement**.

Your application involves **conductive or slightly abrasive fluids** (or you can opt for an **inductive version** for non-conductive liquids).

You need **long-term reliability, low maintenance, and integration with modern control systems (HART/Fieldbus)**.

Your environment is **harsh (corrosive, high-pressure, or explosive)**, and the **IP68/ATEX compliance** is essential.

You operate in an industry where **process optimization, energy efficiency, or regulatory compliance (e.g., SIL, FDA)** is critical.

Your budget is **limited**, and a **simpler, lower-cost flowmeter** (e.g., **ultrasonic, turbine, or positive displacement**) would meet your needs.

Your fluid is **non-conductive (e.g., hydrocarbons)**, and you cannot justify the cost of an **inductive version**.

Details:

Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Sells new and surplus product develops channels to purchase such. Call to use a shipping service other than the ones listed. All products are guaranteed to be working but may show signs of use if purchasing a used product.

part #: fmb709rn90 price

• $776.20

specifications generapneumati:

• brand: Endress Hauser
• mpn: Fmb70-9rn9/0
• part type: Hydraulic Pneumatic

general generapneumati:

• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Other Hydraulics Pneumatics
• condition: Used

seller generapneumati:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• rating: 99.6%
• # reviews: 194161

returns generapneumati:

• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted
• method: Money back

offer generapneumati:

• started: March 12, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 1

shipping generapneumati:

• transit: 30-35 Days
• type: Fixed
• cost: $12.90
• service: Standard
• class: Standard

payments generapneumati:

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