Endress+Hauser FMX21 Hydrostatic Level measurement Waterpilot

SKU: 4695814-1-1035-120
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  • Measuring Cell: Capacitive Ceramic Sensor
  • Accuracy: ±0.2% standard, ±0.1% optional
  • Approvals: NSF, KTW, ATEX, IEC Ex
  • Output: 4-20mA HART

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Description

Endress+Hauser FMX21: Premier Level Sensor Solution

The Endress+Hauser FMX21: Premier Level Sensor Solution is a state-of-the-art transmitter designed for precise hydrostatic level measurement across a variety of demanding process and environmental applications. Its core features a robust, capacitive, oil-free ceramic measuring cell, ensuring both durability and exceptional accuracy. With advanced HART output capabilities, users benefit from freely adjustable measuring ranges and the activation of density-compensated level measurement for unparalleled precision. The FMX21 is certified for drinking water applications and includes integrated temperature measurement, making it a highly versatile and reliable choice for critical monitoring tasks.

Diverse Applications: Water, Wastewater, Saltwater

The FMX21 excels in diverse applications: water, wastewater, saltwater. It is expertly engineered for hydrostatic level measurement in process and environmental settings. Specifically, it is available in three distinct versions tailored to: general applications and freshwater monitoring (22mm diameter), wastewater and sludge management (42mm diameter), and corrosive saltwater environments (29mm diameter). This adaptability ensures optimal performance and longevity, whether used in boreholes, wells, tanks, or treatment plants, providing accurate data regardless of the medium or installation constraints.

Robust Ceramic Cell for Maximum Reliability

Featuring a robust ceramic cell for maximum reliability, the FMX21 is built to withstand challenging conditions. The high-purity ceramic sensor (99.9% Al2O3) is inherently overload-resistant, guaranteeing dependable operation. Furthermore, the sensor’s electronics are completely potted, and a two-filter pressure compensation system provides climate-proof protection. This meticulous design minimizes the impact of ambient conditions and ensures exceptional long-term stability and performance, reducing maintenance needs and maximizing operational uptime.

Flexible Measurement with HART Output

The FMX21 offers flexible measurement with HART output. This advanced communication protocol allows for easy adjustment of the measuring ranges directly in the field. More significantly, it enables density-compensated level measurement, a critical feature for applications where liquid densities may fluctuate. By incorporating temperature compensation for density corrections, the FMX21 delivers the highest level of accuracy in challenging scenarios. The option for an integrated Pt100 sensor further enhances its capabilities by providing simultaneous level and temperature readings.

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Enhanced Accuracy Through Integrated Measurement

The FMX21 provides enhanced accuracy through integrated measurement. The optional integration of a Pt100 temperature sensor allows for simultaneous measurement of both liquid level and temperature. This dual-sensing capability is crucial for applications requiring precise compensation for density variations. By combining accurate level data with real-time temperature information, the FMX21 delivers superior insights into process conditions, enabling better control and more informed decision-making for operators and engineers alike.

Comprehensive Certifications for Global Deployment

With a wide array of certifications, the FMX21 is ready for comprehensive certifications for global deployment. It holds international explosion protection certificates, including ATEX, FM, CSA, and IEC Ex, making it suitable for hazardous environments. Furthermore, marine approvals from major classification societies like GL, ABS, BV, DNV, and LR, along with drinking water approvals such as NSF, KTW, and ACS, confirm its suitability for a vast range of specialized and regulated applications worldwide, ensuring compliance and confidence.

Compact Design for Tight Installations

The compact design for tight installations is another key advantage of the FMX21. The general-purpose and freshwater version features a small outer diameter of just 22mm (0.87 inches), making it ideal for use in narrow boreholes, wells, or compact tanks where space is limited. This thoughtful design facilitates easier installation and replacement, even in confined spaces, without compromising the sensor’s performance or accuracy, offering a practical solution for diverse installation requirements.

Specifications

  • Measuring principle

    Hydrostatic pressure

  • Characteristic

    Compact probe with ceramic cell for hydrostatic level measurement,
    Diameter = 22 mm: General applications, fresh water
    Diameter = 42 mm: Waste water applications
    Diameter = 29 mm: Salt water applications

  • Supply voltage

    10.5 …35V DC

  • Reference Accuracy

    0.2%
    0.1% (optional)

  • Long term stability

    0.1% of URL/year

  • Process temperature

    -10°C…70°C
    (14°F…158°F)
    Diameter 29 mm (1.14″): 0°C…50°C
    (32°F…122°F)

  • Ambient temperature

    -10°C…70°C
    (14°F…158°F)
    Diameter 29 mm (1.14″):
    0°C…50°C
    (32°F…122°F)

  • Measuring cell

    100mbar…20bar
    (1.5psi…300psi)

  • Process connection

    Suspension clamp
    Cable mounting screws

  • Communication

    4…20 mA
    4…20 mA HART

  • Certificates / Approvals

    ATEX, FM, CSA, CSA C/US, IEC Ex, INMETRO, NEPSI, UK Ex

  • Marine approvals

    GL/ ABS/ BV/ DNV/ LR

  • Drinking water approvals

    NSF/ KTW/ ACS

Data Sheet

Download Data Sheet Of: Endress+Hauser FMX21 Hydrostatic Level measurement Waterpilot 

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