Product Description
Proline Promag W 300 Electromagnetic Flowmeter: Revolutionizing Water and Wastewater Measurement
1. Introduction
The Proline Promag W 300 by Endress+Hauser is a premium electromagnetic flowmeter engineered for critical applications in the water and wastewater industry. Designed to excel under harsh conditions and in hazardous areas, it combines rugged construction with cutting-edge diagnostic technology. Its compact transmitter, industry-leading accuracy (±0.2% of rate), and zero inlet-run requirements (0 × DN) make it ideal for custody transfer, municipal water management, and industrial wastewater monitoring .
Detailed Photos
2. Key Features & Innovations
2.1. Measurement Excellence
Bidirectional Principle: Measures flow independently of fluid pressure, density, temperature, or viscosity .
Zero Pressure Loss & No Inlet Run Required: Ensures consistent accuracy without upstream straight-pipe sections, reducing installation costs and space .
Wide Flow Range: Operates from minimal flow rates up to 3 m/s (DN 100/4") with a turndown ratio of 1,000:1 .
2.2. Robust Hardware Design
IP68 Protection & Dual-Compartment Housing: Submersible up to 6 m (20 ft), suitable for underground or submerged installations. The transmitter compartment is isolated from electronics, enhancing longevity .
Corrosion Resistance: Complies with EN ISO 12944 standards for underground/underwater use .
Versatile Process Connections: Supports fixed flanges or lap-joint adapters for flexible retrofitting .
2.3. Smart Operation & Connectivity
Touch-Enabled Bac
. Heartbeat Technology: Reliability Redefined
The Promag W 300 integrates Endress+Hauser's Heartbeat Technology, a self-monitoring system ensuring compliance and operational safety:
Automatic Verification: Continuously checks sensor electrodes, coil integrity, and electronics without process interruption .
Predictive Diagnostics: Alerts for electrode coating, air bubbles, or pipeline blockages, reducing unplanned downtime .
Compliance: Meets MI-001/OIML R49 standards for custody transfer .
Product Parameters
Parameter |
Specification |
Measurement Principle |
Electromagnetic (Faraday's Law), bidirectional |
Application Scope |
Water, wastewater (industrial/municipal), hazardous areas, harsh conditions |
Accuracy |
±0.2% of measured value (flow rate-dependent) |
Process Connection |
Fixed or lap-joint flanges (ANSI/ASME, DIN, EN, JIS, ISO standards) |
Lining Materials |
Hard rubber, PTFA, PFA, or polyurethane (optional) |
Electrode Materials |
Stainless steel 1.4435 (316L), Hastelloy C4/C22, titanium, tantalum (optional) |
Pressure Rating |
Up to PN40/Class 150 (dependent on sensor size) |
Ambient Temperature |
Transmitter: -40°C to +70°C (-40°F to +158°F) |
Process Temperature |
Standard: -25°C to +130°C (-13°F to +266°F);High-temp option: Up to +180°C (+356°F) |
Ingress Protection |
IP68 (Type 6P enclosure) |
Housing |
Dual-compartment, compact design |
Power Supply |
24 V DC (±10%), 100-230 V AC (optional) |
Inputs/Outputs |
Up to 3 freely configurable I/O modules:• Analog inputs (e.g., Pt100 for temp. compensation)• Analog outputs (4-20 mA HART)• Pulse/frequency/relay outputs |
Communication |
• HART, PROFIBUS PA, EtherNet/IP, Modbus RTU• Ethernet-APL (PROFINET optional)• WLAN access• Web server & OPC-UA support |
Display |
Backlit LCD with touch keys; optional remote display |
Certifications |
• International drinking water approvals (WRAS, NSF, KIWA)• Custody transfer (MID MI-001/OIML R49)• ATEX/IECEx for hazardous areas• EN ISO 12944 (corrosion protection) |
Special Features |
• Heartbeat Technology (self-monitoring/verification)• No straight-pipe requirements (0×DN)• Zero pressure loss• Free I/O configuration |
4. Industry-Specific Applications
4.1. Drinking Water Management
Global Approvals: Certified by DVGW, WRAS, NSF, and other international bodies for potable water .
Leak Detection: High sensitivity to low flows enables early identification of distribution losses.
4.2. Wastewater & Industrial Effluents
Abrasion/Corrosion Resistance: Welded sensor construction withstands slurries and aggressive chemicals .
Custody Transfer: Approved for fiscal metering in sludge, recycled water, and effluent billing .
5. Installation & Maintenance Advantages
Single-Side Access: Simplifies wiring and calibration in confined spaces .
Integrated Data Logger: Records process values for audit trails and performance analysis .
Tool-Free Cover Removal: Reduces maintenance time by 40% compared to traditional models .
6. Certifications & Compliance
Explosion Safety: ATEX, IECEx, and FM approvals for Zone 1/21 hazardous areas .
Quality Standards: ISO 9001, ISO 14001, and OIML R49 certification for metrological reliability .
7. Comparison with Promag Series
While the Promag W 400 offers broader custody transfer approvals and Ethernet-APL support , the W 300 excels in compactness, harsh-environment resilience, and cost efficiency for pure water/wastewater applications.
8. Conclusion
The Proline Promag W 300 sets a benchmark for electromagnetic flow measurement in water-centric industries. Its fusion of zero-maintenance design, Heartbeat-powered diagnostics, and extreme installation flexibility delivers unmatched total cost of ownership. For utilities and industrial plants prioritizing reliability, compliance, and future-ready connectivity, the W 300 remains an indispensable solution.
Company Profile
KeRui (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales,technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters,temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.



Packaging & Shipping
The packaging and transportation of instrumentation in global trade hinges on a synergy of advanced materials, rigorous testing, regulatory compliance, and smart logistics. By adopting hybrid structural designs, leveraging real-time monitoring technologies, and prioritizing sustainability, exporters can ensure the safe, efficient, and cost-effective delivery of precision instruments. Continuous innovation in materials science and IoT integration will further redefine industry standards, enhancing resilience in an increasingly interconnected market.




FAQ
Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information.
Q: What is the delivery time?
A: Our delivery time is within 3-7 days after we get your payment;
for large qty mass orders, the time should be confirmed again for you.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package.
Q: How about the payment terms?
A: You can choose T/T.
Q: Do you provide samples?
A: Yes, we have materials in stock to help you to get the samples as soon as we can.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.