Endress+Hauser FMU40-ANB2A4 | Prosonic M Ultrasonic Level Transmitter, 2x 4-20mA, 100-230V AC
Endress+Hauser FMU40-ANB2A4 Prosonic M ultrasonic level transmitter. Measures up to 15m liquid / 40m solid, 2x 4-20mA, 2 relays, 100-230V AC, IP66, for tanks & open channels.
Product Overview
The Endress+Hauser FMU40-ANB2A4 is a micromotion ultrasonic level transmitter from the Prosonic M FMU40 series, designed for continuous, non-contact level measurement of liquids and bulk solids in tanks, open channels, and silos. It features two 4-20mA outputs, two relay contacts, and a 100-230V AC power supply. The transmitter can be paired with a wide range of Endress+Hauser ultrasonic sensors (FDU90/FDU91/FDU92/FDU93 series) for measuring ranges up to 15 m on liquids and 40 m on solids.
Technical Specifications (Electrical & Functional)
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Parameter
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Specification
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Model / Order Code
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FMU40-ANB2A4
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Product Family
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Prosonic M FMU40
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Measured Variable
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Level (Distance, Volume, Flow via weir/flume)
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Sensor Compatibility
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FDU90 / FDU91 / FDU92 / FDU93 series ultrasonic transducers
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Max. Measuring Range (Liquid)
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15 m (with FDU91F)
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Max. Measuring Range (Solid)
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40 m (with FDU93K)
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Accuracy
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±0.2 % of set measuring range (sensor-dependent)
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Blind Zone
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Sensor-dependent (typically 0.25–0.5 m on standard sensors)
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Analog Outputs
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2 × 4…20 mA, galvanically isolated, assignable
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Relay Outputs
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2 × SPDT Relays (Alarm / Pump Control / Empty/Full)
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Power Supply
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100 … 230 V AC (50/60 Hz)
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Display
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Backlit LCD graphic display
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Technical Specifications (Mechanical & Environmental)
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Parameter
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Specification
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Housing Material
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Polycarbonate (PC) / Aluminum (optional)
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Protection Rating
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IP66 / IP67, NEMA 4X (Field Housing Version)
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Mounting
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Wall Mount / Field Housing (not panel — see FMU30 for panel)
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Ambient Temperature
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-20 … +60 °C
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Communication
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HART (on request / optional module)
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Certifications
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CE, CSA General Purpose (some versions with FM/ATEX available)
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Cable Entry
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M20 × 1.5 (typically 2x)
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Key Features
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Dual Channel / Dual Output: Two independently configurable 4-20mA outputs allow simultaneous level + temperature or level + calculated flow (weir/flume) reporting.
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Pump & Alarm Control: Two integrated SPDT relays enable direct control of fill/drain pumps or high/low level alarms without external interposing relays.
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Advanced Echo Processing: Prosonic patented algorithms suppress false echoes from tank obstructions, agitators, or surface turbulence.
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Weir & Flume Calculation: Built-in math function computes flow rate from level in open channel installations (Parshall flume, Palmer-Bowlus, etc.).
Applications
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Open Channel Flow: Level + flow measurement in wastewater flumes and weirs for discharge monitoring.
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Storage Tank Level: Non-contact liquid level in chemical storage, water, and wastewater tanks (above ground / underground with pit sensor).
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Bulk Solid Silos: Level monitoring in grain, plastic pellet, or powder silos (with appropriate FDUsolid sensor).
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Sumps & Wet Wells: Pump control based on level setpoints with alternating pump logic.
Note: For panel-mount version, see FMU30 series. Sensor (FDU9x) must be ordered separately — the FMU40 is the transmitter/electronics only.
About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
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Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
