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Original and Brand New Endress+Hauser E+H Fmu90 Ultrasonic Level Transmitter¹

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Product Description Product DescriptionEndress+Hauser Prosonic S FMU90 Ultrasonic Level Transmitter: Technical Overview1. Introduction & Operating PrincipleThe Prosonic S FMU90 is an advanced ultrasonic transmitter designed for non-contact continuous level measurement of liquids, pastes, sludges, and bulk solids (powdery to coarse). It utilizes the Time-of-Flight (ToF) principle: high-frequency ultrasonic pulses emitted by a sensor reflect off the material surface, and the transmitter calculates distance/level based on the pulse travel time . This method ensures high accuracy (±0.15% of measured distance under ideal conditions) and reliability in challenging industrial environments. The device supports single- or dual-channel configurations, enabling simultaneous level and flow monitoring with up to two sensors .Detailed PhotosProduct ParametersParameterSpecificationMeasuring RangeUp to 45 m (148 ft)Process Temperature-40°C to +80°C (-40°F to +176°F)Process PressureUp to 3 bar (43.5 psi)Outputs4-20 mA HART, PROFIBUS DP, 6 configurable relaysRelays6 SPDT (10 A, 250 V AC) for alarms/pump controlInputsExternal temperature (Pt100), digital/analog signalsDisplay6-line plain text LCD (15 languages)Software IntegrationFieldCare?, Endress+Hauser Operations App3. Hardware ComponentsTransmitter Unit (FMU90):Housed in field (IP66/IP67) or top-hat rail enclosures for control cabinets.Features modular terminals for power, relays, and communication cables.Integrated temperature sensor for speed-of-sound compensation.Sensors (FDU9x Series):FDU90/91/92/93/95: Variants optimized for liquids, solids, or corrosive media.Automatic detection by the FMU90 upon connection .Remote Display Module: Optional separation for hazardous or inaccessible areas .4. Core Functionalities4.1 Level MeasurementAdvanced Echo Processing: Dynamic echo curve analysis ignores false signals from obstacles (e.g., agitators).Safety Features: Configurable echo loss alarm, safety distance limits, and temperature failure responses .Unit Conversion: Measures distance, volume, or mass via linearization (32-point user-defined tables) .4.2 Flow MeasurementOpen Channel/Weir Flow: Calculates flow rate in channels using pre-programmed curves (e.g., Venturi, Parshall flumes) or custom linearization .Backwater/Sludge Detection: Dual-sensor mode monitors sediment buildup and compensates for flow errors .4.3 Control & AutomationPump Control:Standard Mode: Alternates pumps based on level thresholds (e.g., high/low start/stop) .Enhanced Mode: Integrates runtime balancing, dry-run protection, and duty cycle optimization .Rake Control: Monitors grit rake blockage via torque estimation and triggers automatic reversal .Relay Logic: Relays assignable to 30+ functions (e.g., high-level alarm, flow pulse, pump failure) .4.4 Calculations & TotalizationMathematical Operations: Computes averages, differences, sums, or ratios between two sensors.Totalizers: Three independent counters for flow volume with pulse output for external SCADA .5. User Interface & DiagnosticsMenu-Guided Operation: Intuitive wizard simplifies setup (e.g., tank geometry, sensor type).Envelope Curve Display: Visualizes echo strength in real time for signal quality assessment .Simulation Mode: Tests relay/output behavior without process interruption .Diagnostic Alarms: Self-monitoring for sensor faults, temperature drift, or signal loss.6. Communication & IntegrationHART 7: Supports digital parameterization via FieldCare? or handheld communicators.PROFIBUS DP: Delivers level, flow, device status, and diagnostic data to PLCs/DCS .Endress+Hauser Operations App: Accesses device manuals, serial numbers, and calibration records via QR code .7. Industry ApplicationsWater/Wastewater:Reservoir level monitoring, storm overflow basin control, and sludge blanket detection.Pump station alternation and grit rake automation.Chemical/Process:Corrosive liquid inventory management in storage tanks.Hopper level control for powders/pellets.Food & Beverage:Hygienic level tracking in silos (FDA-compliant sensor options).8. Safety & ComplianceCertifications: ATEX, IECEx, SIL 2 (functional safety), CE, FM.Fail-Safe Options: Configurable relay actions on power loss (e.g., hold last state or safe position) .9. Advantages vs. Competitors15-Year Sensor Longevity: Titanium or PVDF probes resist corrosion/abrasion.Multi-Variable Capability: Replaces separate devices for level, flow, and pump control.FLEX Selection: Part of Endress+Hauser's modular platform for simplified spare part management .10. Accessories & DocumentationMounting Kits: Nozzle, slide, or bypass chamber adapters.Heaters/Blowers: Prevent condensation in humid environments.Technical Manuals:BA00290F/00/EN (Functional Description) KA01065F/00/EN (Brief Operating Instructions) .SummaryThe Prosonic S FMU90 combines versatility, robustness, and intelligent control in a single device. Its dual-channel architecture, six relays, and open-channel flow capabilities make it ideal for complex automation tasks in water treatment, chemical processing, and bulk handling. Integration with Endress+Hauser's digital ecosystem (Operations App, FieldCare?) ensures seamless lifecycle management, while SIL 2 compliance guarantees safety-critical reliability.Company ProfileKeRui (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 & ShippingThe 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.FAQQ: 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.

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