- Processes one compatible DU ultrasonic sensor for continuous, non-contact level or volume measurement
- Provides direct front-panel operation with LCD indication, bar graph, matrix fields, and status LEDs
- Supports fixed-target suppression, vessel linearization, Rackbus dialogue, analog outputs, and relay alarms
Endress+Hauser FMU671 is a Nivosonic ultrasonic level transmitter designed for continuous, non-contact measurement of liquids and bulk solids.
It evaluates ultrasonic echo signals from one compatible DU sensor, converts the result to level or volume, and supplies configurable current, voltage, limit-relay, and fault-relay signals for local or supervisory control.
Before installation or replacement, verify sensor compatibility, 24 V DC supply, plug wiring, cable resistance and shielding, output scaling, front-panel parameters, Rackbus address, and enclosure arrangement.
Availability, condition, price, and shipping time for Endress+Hauser FMU671 are confirmed during quotation.
Endress+Hauser FMU671 Ultrasonic Level Transmitter Manuals, Product Family, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Echo run time and amplitude are statistically evaluated to identify the product-surface echo
- Fixed-target suppression can reject interference echoes from struts, seams, edges, and vessel fittings
- The stored envelope curve, signal strength, temperature, and signal-to-noise information support measurement analysis
- A steady bottom red LED indicates a fault, while a flashing red LED indicates a warning
- The analog output can move to −10%, +110%, or hold the last measured value when a fault occurs
- Online diagnosis can use analog-current measurement, an oscilloscope, or a connected service computer
- The DIN 41494 Racksyst board must be mounted outside explosion-hazardous areas
- Installation options include a 7 HP Monorack housing, an IP65 field housing for six units, or an 84 HP rack for up to eleven units
- The operating range is 0…+70 °C and the documented storage range is −20…+85 °C
- Continuous non-contact level and volume measurement of liquids in vessels
- Continuous level and volume measurement of fine-grained or coarse-grained bulk solids
- Ultrasonic measurement on conveyor belts using the dedicated application parameter