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    Level Sensors

    Level sensors, also known as liquid level probes, are devices that monitor and measure fluid levels in containers, tanks, or silos. They generate an output electrical signal at predetermined levels to control the opening or closing of valves.

    Types of Level Sensors

    Level sensors are selected based on factors such as the substance being measured, the operating environment, mounting requirements, and the specific needs of the application. These factors dictate the measurement technique employed, including capacitive, guided wave radar, or hydrostatic methods. Here’s a breakdown of the most common types of level sensors:

    Capacitive level switches

    Capacitive level switches operate without contact, utilising a sensing field to detect water levels. These switches are positioned to provide basic full or empty indications and are effective even with significant residue buildup.

    Vibrating Level Probes

    Vibrating level probes employ a continuously vibrating rod or fork to detect level changes. When these probes make contact with a medium, their vibration alters, triggering a switch. This technology is commonly used for overfill protection and low-level indication in both liquids and granular or powdery solids.

    Conductive Level Switches

    Conductive level switches use stainless steel probes that make electrical contact to measure specific liquid levels. They work alongside level control relays to monitor and adjust the position of each probe, suitable for various applications from ponds to pharmaceutical vessels.

    Ultrasonic Level Switches

    Ultrasonic level sensors emit sound pulses that reflect off the liquid surface. The sensor calculates the time it takes for these pulses to return, accurately determining the liquid's distance and thus its level. Factors like turbulence, pressure, moisture, and temperature can affect the readings of ultrasonic sensors.

    Level Sensors Applications

    Level sensors are crucial in numerous industries due to their ability to monitor and control liquid levels accurately, impacting various processes from manufacturing to automotive functionality. Here's how they are applied across different sectors:

    • Manufacturing – Level sensors ensure accurate ingredient balances and safe storage in chemical and food processing industries.
    • Automotive Industry – Level detection sensors monitor crucial fluid levels in vehicles, such as brake fluid and engine oil, preventing failures and damage.
    • Water Treatment – These level detectors manage treatment volumes and effectiveness in water tanks as well as treatment facilities.
    • Pharmaceutical Processes – In pharmaceutical production, level sensors maintain strict liquid levels for compliance and batch quality.
    • Power Generating Plants – Power plants use level meters to monitor liquids like cooling water and lubricants, ensuring machinery operates smoothly.

    Browse the broad range of level sensors RS Group has to offer and order today for next day delivery.

    How to Choose the Right Level Sensor for Your Needs

    Selecting the right level sensor requires careful consideration of various factors to ensure it meets specific application needs. Start by defining the primary purpose of the measurement, such as visual indication, alarm initiation, or continuous monitoring.

    Consider the characteristics of the service medium, including its type (liquid, slurry, granular), corrosiveness, and physical properties like density and viscosity. The selection of material for the sensor's wetted parts should align with the chemical compatibility and physical demands of the medium. Additionally, assess the operating conditions such as temperature, pressure, and whether the installation environment is hazardous.

    The mounting orientation of the sensor and the required accuracy are also crucial. As a reputable water level sensor supplier, RS offers a broad range of quality level sensors from leading brands. These sensors are designed to integrate seamlessly with modern digital control systems and meet rigorous industrial standards, ensuring reliability and accuracy in any application.

    How to Order Level Sensors from RS?

    Ordering level sensors from RS is straightforward and ensures access to high-quality solutions tailored to a wide range of industrial, commercial, and project needs. Our catalogue features an extensive selection from trusted brands including RS PRO , Siemens, Sick, and Gems Sensors, catering to diverse requirements. You can conveniently place your order online for efficient delivery, or contact us by phone for assistance with bulk orders. RS guarantees a smooth purchasing process, providing you with reliable level sensors that meet stringent quality standards. Sick, and Gems Sensors, catering to diverse requirements. You can conveniently place your order online for efficient delivery, or contact us by phone for assistance with bulk orders. RS guarantees a smooth purchasing process, providing you with reliable level sensors that meet stringent quality standards.

    How Delivery Works at RS Hong Kong

    At RS Hong Kong, we ensure that your orders for level sensors are processed quickly and efficiently. Whether you need standard of expedited shipping, you can be sure that your orders will arrive on-time when you need them. For additional information on our delivery services, please visit our delivery information page.

    1509 產品顯示為 Level Sensors

    HK$27,527.40
    Endress+Hauser
    Radar Level Measurement
    Flange Mount
    -
    Aluminium, Stainless Steel
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Micropilot FMR5x
    HK$7,947.46
    Endress+Hauser
    Hydrostatic Level Measurement
    Cable Mount
    -
    Ceramic, Polyolefin, PPS, Stainless Steel
    10 → 20m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Waterpilot FMX21
    HK$7,332.90
    Endress+Hauser
    Vibronic
    Threaded Mount
    PNP
    PTB-FR
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX, IECEx
    Soliphant T FTM21
    HK$3,243.90
    Endress+Hauser
    Point Level
    Threaded Mount
    Binary
    Polycarbonate
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Soliswitch FTE20
    HK$3,918.30
    Endress+Hauser
    Capacitance
    Flush Mount
    PNP
    Stainless Steel 316L
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Liquipoint FTW33
    HK$6,022.00
    Endress+Hauser
    Vibronic
    Threaded Mount
    PNP
    PTB-FR
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX, IECEx
    Soliphant T FTM21
    HK$3,083.30
    Endress+Hauser
    Conductive
    Threaded Mount
    PNP
    PBT-FR
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Liquipoint T FTW32
    HK$5,299.40
    Endress+Hauser
    Capacitance
    Wall Mount
    PNP
    PBT-FR
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Minicap FTC262
    HK$5,636.60
    Endress+Hauser
    Capacitance
    Wall Mount
    PNP
    PBT-FR
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Minicap FTC262
    HK$3,709.60
    Endress+Hauser
    Capacitance
    Wall Mount
    PNP
    PBT-FR
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Minicap FTC260
    HK$2,601.50
    Endress+Hauser
    Vibronic
    Flush Mount
    PNP
    Stainless Steel 316L
    5m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Liquiphant FTL31
    HK$1,798.60
    Endress+Hauser
    Capacitance
    Wall Mount
    PNP
    Polycarbonate
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX, IECEx
    Nivector FTI26
    HK$3,500.80
    Endress+Hauser
    Point Level
    Threaded Mount
    Binary
    Polycarbonate
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Soliswitch FTE20
    • RS庫存編號 804-4121
    • 製造零件編號 7ML1100-1BA30
    HK$6,700.40
    Siemens
    Vibrating Rod
    -
    -
    -
    -
    -
    -40°C, -20°C
    +60 °C, +73°C
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Echomax
    HK$8,447.80
    Endress+Hauser
    Radar Level Sensor
    Threaded Mount
    4-20mA
    PVDF
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    FMR30B
    HK$8,761.88
    Flowline
    Radar
    Flange Mount
    4-20mA, HART
    Polybutylene Terephthalate
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    LR83
    • RS庫存編號 316-281
    • 製造零件編號 FMR43-AAKAKFNI1WJJDFC
    HK$15,196.20
    Endress+Hauser
    Radar Level Sensor
    Screwing
    -
    PTFE
    5m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    FMR43
    HK$10,551.60
    Flowline
    Radar
    Flange Mount
    Modbus
    Polybutylene Terephthalate
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    LR83
    HK$3,616.70
    Siemens
    Vibrating Level Switch
    Threaded
    -
    316 Stainless Steel, Plastic PEI
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    SITRANS LVL
    HK$1,253.30
    SSt Sensing Limited
    Liquid Level Switch
    Threaded Mount
    PNP
    Stainless Steel 316L
    -
    -
    -40°C
    +125°C
    -
    30V
    -
    7.5 mA
    100bar
    -
    -
    -
    -
    -
    OPTOMAX LLC610
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