Endress+Hauser FDU90 Ultrasonic measurement Time-of-Flight Prosonic

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  • Type: Non-Contact Ultrasonic
  • Range: Liquids: 3m, Solids: 1.2m
  • Material: Welded PVDF Sensor
  • Comm: HART, PROFIBUS DP

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Description

Endress+Hauser FDU90: Continuous, Non-Contact Level Measurement

The Endress+Hauser FDU90: continuous, non-contact level measurement is a versatile ultrasonic sensor designed for precise and reliable level monitoring of fluids and solids. This instrument is well-suited for continuous, non-contact, and maintenance-free measurement of fluids, pastes, sludges, powdery to coarse bulk materials, and even for flow measurement in open channels and measuring weirs. Its measurement capabilities are unaffected by dielectric constant, density, or humidity, ensuring consistent and accurate readings across a wide range of materials and process conditions. The sensor’s self-cleaning effect also minimizes build-up, further enhancing its reliability and reducing maintenance requirements. This makes the FDU90 a versatile and cost-effective solution for various level and flow measurement applications.

Liquids, Solids, Open Channel Flow

The FDU90 measures liquids, solids, open channel flow utilizing advanced ultrasonic technology. The sensor is suitable for a variety of applications. For liquids, this includes level monitoring in tanks, sumps, and basins. When measuring solids, the sensor is suitable for level measurement on belts, stockpiles and in crushers. It can also measure flow in open channels and at weirs. Commonly used in measurements in low structural heights.

Isolated Setups Up to 300 Meters

The FDU90 is designed for isolated setups up to 300 meters, employing a separated version that allows the sensor to be installed remotely from the transmitter. This design offers several advantages, including enhanced flexibility in installation and improved performance in harsh or hazardous environments. With the ability to locate the transmitter in a control cabinet or field housing up to 300 meters away from the sensor, users can protect sensitive electronics from extreme temperatures, corrosive atmospheres, or explosive environments. This separated configuration ensures that the sensor can operate reliably in challenging conditions while providing convenient access to the transmitter for configuration, monitoring, and maintenance.

Accurate Readings With Temperature Changes

The FDU90 can maintain accurate readings with temperature changes, thanks to its integrated temperature sensor for Time-of-Flight correction. Fluctuations in temperature can affect the speed of sound in the air gap between the sensor and the measured material, leading to inaccuracies in level measurement. The FDU90’s integrated temperature sensor continuously monitors the ambient temperature and automatically compensates for these variations, ensuring precise and reliable level readings even when temperature changes are present. This feature is particularly important in outdoor applications or in processes where temperature fluctuations are common, guaranteeing consistent measurement performance and reducing the need for manual adjustments or recalibration.

Self-Cleaning Minimizes Build-Up Maintenance Free

The FDU90 acts as a self-cleaning minimizes build-up maintenance free sensor. The ultrasonic pulses emitted by the sensor create a self-cleaning effect that minimizes the accumulation of material on the sensor surface. This reduces the need for manual cleaning and maintenance, ensuring continuous and reliable level measurement over extended periods. In environments where dust, condensation, or other contaminants are present, the self-cleaning capability of the FDU90 helps to prevent build-up from interfering with the ultrasonic signal, maintaining accurate and consistent level readings. This feature not only reduces operational costs but also enhances the overall reliability of the measurement system, making the FDU90 a low-maintenance solution for various level measurement applications.

Extreme Chemical Weather Resistance

The FDU90 features extreme chemical weather resistance, constructed with a hermetically welded PVDF sensor that provides exceptional protection against harsh chemicals and corrosive substances. This robust sensor material ensures that the instrument can withstand exposure to a wide range of aggressive media, including acids, alkalis, solvents, and other corrosive fluids, without degradation or damage. The hermetic welding further enhances the sensor’s resistance to chemical attack by preventing ingress of moisture or contaminants. This chemical resistance, along with its flood-proof IP68 rating, allows for deployment in outdoor areas, further showcasing the sensors’ weather-resistant properties. The device can be used with confidence in demanding chemical processing, water treatment, and other applications where chemical compatibility is critical, ensuring long-term reliability and accurate level measurement.

TPT24: Authentic Instruments Global Delivery

When it comes to sourcing the Endress+Hauser FDU90, TPT24: authentic instruments global delivery offers unparalleled access to genuine, high-quality instrumentation backed by exceptional service and global reach. As a leading online store for industrial measurement solutions, we are deeply committed to providing only authentic Endress+Hauser products, each rigorously tested and verified to meet the highest performance standards. We understand the critical importance of accurate and reliable level measurement in your operations, which is why we guarantee the authenticity and quality of every FDU90 we sell. With a robust global logistics network, TPT24 ensures prompt and secure delivery of your instrument, no matter where you are located. Choose TPT24 and gain the peace of mind that comes from partnering with the industry leader, knowing that you are receiving a genuine, top-performing product backed by world-class support.

Simple Commissioning Auto Sensor Detection

The FDU90 allows for simple commissioning auto sensor detection, featuring integrated automatic sensor detection for seamless integration with FMU90 and FMU95 transmitters. This intelligent feature streamlines the setup process, eliminating the need for manual configuration and reducing the risk of errors. When connected to a compatible transmitter, the FDU90 is automatically detected and configured, simplifying commissioning and ensuring optimal performance. This plug-and-play capability saves time and effort, allowing users to quickly deploy the sensor and begin monitoring level or flow with minimal setup. The integrated automatic sensor detection further enhances the user-friendliness of the FDU90, making it an accessible solution for both experienced technicians and new users.

Specifications

  • Measuring principle

    Ultrasonic

  • Characteristic / Application

    Separated version with field housing or top hat rail housing for control cabinet instrumentation, 300m in-between sensor and transmitter

  • Specialities

    Floating protection tube

  • Supply / Communication

    4-wire (HART, PROFIBUS DP)

  • Accuracy

    +/- 2mm + 0.17% of measured distance

  • Ambient temperature

    -40 °C … 80 °C
    (-40 °F … 176 °F)

  • Process temperature

    -40 °C … 80 °C
    (-40 °F … 176 °F)

  • Process pressure / max. overpressure limit

    0.7 bar … 4 bar abs
    (10 psi … 58 psi)

  • Main wetted parts

    PVDF (IP68 / NEMA6P)

  • Process connection

    Front side thread:
    G / NPT 1 1/2″
    Rear side thread:
    G / NPT 1″
    Ceiling mounting

  • Blocking distance

    0.07 m (0.23 ft)

  • Max. measurement distance

    Liquids: 3 m (9.8 ft),
    Solids: 1.2 m (3.9 ft)

  • Communication

    Transmitter:
    4 … 20 mA HART
    PROFIBUS DP

  • Certificates / Approvals

    ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, UK Ex

  • Options

    Second 4…20mA output

  • Components

    Transmitter:
    FMU90, FMU95

  • Application limits

    Foam / high turbulence possible:
    FDU92
    Flange-flush assembly:
    FDU91F
    For tank farms scanner:
    FMU95

Data Sheet

Download Data Sheet Of: Endress+Hauser FDU90 Ultrasonic measurement Time-of-Flight Prosonic 

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