Endress+Hauser Prosonic FMU41-ARB2A2 Ultrasonic Level Transmitter
- Product Name:Endress+Hauser Prosonic FMU41-ARB2A2 Ultrasonic Level Transmitter
- Product Number:FMU41-ARB2A2
- Brand:Endress+Hauser
- Views:3
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Endress+Hauser Prosonic FMU41-ARB2A2 Ultrasonic Level Transmitter
的详细介绍
Endress+Hauser Prosonic FMU41-ARB2A2
Ultrasonic Level Transmitter


The Endress+Hauser FMU41-ARB2A2 is a compact ultrasonic transmitter from the Prosonic M series, designed for non-contact level measurement of liquids, pastes, and bulk solids, as well as flow measurement in open channels . This cost-effective device delivers reliable performance for sophisticated level applications in storage tanks, agitators, and conveyor belts .
Order Code Interpretation: FMU41-ARB2A2
| Position | Code | Interpretation |
|---|---|---|
| Approval | A | Non-hazardous area |
| Process Connection | R | Thread ISO228 G2, PVDF |
| Power Supply; Output | B | 2-wire; 4-20mA HART |
| Operation | 2 | 4-line display VU331, envelope curve display on site |
| Housing | A | F12 Alu, coated, IP68 NEMA6P |
| Cable Entry | 2 | Gland M20 (EEx d > thread M20) |
Key Features and Benefits
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Reliable Non-Contact Measurement: Ultrasonic time-of-flight technology with no moving parts ensures maintenance-free operation
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±2 mm Accuracy: High precision with ±2 mm or ±0.2% of set measuring range for critical applications
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Chemically Resistant PVDF Sensor: Hermetically sealed and potted PVDF sensor withstands aggressive media
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Automatic Temperature Compensation: Integrated temperature sensor corrects for sound velocity variations
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Easy Commissioning: Menu-guided on-site operation with 4-line plain text display, 7 languages
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Built-in Diagnostics: Envelope curve display on-site for simple troubleshooting
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32-Point Linearization: Convert measured values to any unit of length, volume, or flow rate
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Endress+Hauser |
| Measuring Principle | Ultrasonic (Time-of-Flight) |
| Max. Measurement Distance (Liquids) | 8 m (26 ft) |
| Max. Measurement Distance (Solids) | 3.5 m (11 ft) |
| Accuracy | ±2 mm or ±0.2% of set measuring range |
| Blocking Distance | 0.35 m (1.15 ft) |
| Process Temperature | -40°C to +80°C (-40°F to +176°F) |
| Ambient Temperature | -40°C to +80°C (-40°F to +176°F) |
| Process Pressure | 0.7 to 3 bar abs (10 to 44 psi) |
| Main Wetted Parts | PVDF |
| Process Connection | Thread ISO228 G2" |
| Output Signal | 4-20 mA HART |
| Supply Voltage | 2-wire loop-powered |
| Housing Material | F12 Aluminum, coated |
| Protection Rating | IP68 / NEMA 6P |
| Electrical Connection | M20 cable gland |
| Certifications | ATEX, FM, CSA, IECEx, NEPSI |
Applications
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Level Measurement: Continuous non-contact level of liquids, pastes, sludge, and bulk solids in storage tanks, silos, and agitators
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Flow Measurement: Open channel flow monitoring in weirs and flumes for water/wastewater applications
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Material Handling: Level detection on conveyor belts and stockpiles
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Hazardous Areas: Certified for use in explosive atmospheres (gas and dust Ex)
Prosonic FMU41-ARB2A2
Endress+Hauser Prosonic FMU41-ARB2A2 | Ultrasonic Level Transmitter | 8m Range
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Cost-Effective: Fundamental selection device with essential features for core processes
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Simple Commissioning: Menu-guided operation eliminates complex setup procedures
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Maintenance-Free: No moving parts ensures long-term reliability
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Global Approvals: International explosion protection certificates enable worldwide deployment
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Proven Technology: Over 30 years of ultrasonic measurement expertise from Endress+Hauser
Endress+Hauser Prosonic FMU41-ARB2A2 ultrasonic level transmitter. ±2mm accuracy, 4-20mA HART, PVDF sensor, -40 to 80°C, 8m liquids/3.5m solids, ATEX.