Endress+Hauser Prosonic FMU41 Ultrasonic sensor FMU41-ARB2A2




 

 

Ultrasonic measurement Time-of-Flight Prosonic FMU41

 

 

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 8m

The Prosonic FMU41 sensor is suited for non-contact level measurement in fluids, pastes, coarse bulk material and flow measurement in open channels or at weirs. The two-wire or four-wire compact transmitter can be used in applications with storage tanks, agitators, on stockpiles and conveyor belts. The envelope curve can be shown on the on-site display for simple diagnosis. Linearization function (up to 32 points) for conversion of the measured value into any unit of length, volume or flow rate.

 

 

 

Benefits

 

Reliable non-contact measurement

Quick and simple commissioning via menu-guided on-site operation with four-line plain text display, 7 languages selectable

Envelope curves on the on-site display for simple diagnosis

Hermetically sealed and potted sensor

Chemically resistant sensor out of PVDF

Calibration without filling or discharging

Integrated temperature sensor for automatic correction of the temperature dependent sound velocity

 

 

Field of application

 

 

Two-wire or four wire instrument for continuous non-contact level and flow measurement.

 

Process connection: Thread

 

Temperature: -40 to +80°C (-40 to +176°F)

 

Pressure: +0.7 to +3bar (+10 to +44psi)

 

Maximum measuring distance: Liquids 8m (26ft), Solids 3.5m (11ft)

 

Blocking distance: Liquids and Solids 0.35m (1.15ft)

 

International explosion protection certificates

 

 

 

Features and specifications

 

 

Measuring principle

Ultrasonic

Characteristic / Application

Compact ultrasonic transmitter

Supply / Communication

2/4-wire (HART), PROFIBUS PA, FOUNDATION Fieldbus

Accuracy

+/- 2 mm or +/- 0,2 % of set measuring range 1)

Ambient temperature

-40 °C ... 80 °C

(-40 °F ... 176 °F)