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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

    • RS庫存編號 794-3395
    • 製造零件編號 LFP0500-G1NMB
    HK$16,400.00
    SICK
    Sensor
    Vertical
    0-10 V, 4-20 mA
    Stainless Steel
    500mm
    IO-LINK
    -20°C
    +150°C
    -
    -
    -
    100 mA
    16bar
    -
    PEEK
    500mm
    -
    -
    -
    HK$3,854.20
    Flowline
    Ultrasonic Level Sensor
    Vertical
    -
    Polycarbonate
    1.2m
    -
    -35°C
    +60°C
    -
    24V
    -
    15 (Nominal) mA
    30psi
    -
    Viton
    -
    -
    -
    EchoPod
    • RS庫存編號 901-0292
    • 製造零件編號 FX82.IXXTBFHXKMXX
    HK$18,134.10
    Vega
    TDR Sensor
    Cable
    HART
    Stainless Steel
    75m
    -
    -40°C
    +80°C
    253V
    48V
    -
    20 mA
    40bar
    -
    EPDM Rubber, FFKM, FKM
    -
    -
    -
    VEGAFLEX 82
    HK$1,032.19
    NIDEC COPAL ELECTRONICS GMBH
    Optics
    Cable
    NPN
    Polypropylene
    2m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    WL10
    • RS庫存編號 267-2989
    • 製造零件編號 PS6X.2SWXATXAAKMXHAXXXXXXX
    HK$36,118.41
    Vega
    Ultrasonic/Radar
    Hook and Strap
    -
    316 Stainless Steel
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    PS6X
    HK$1,573.10
    Carlo Gavazzi
    Conductive Sensor
    Threaded
    Relay
    PVC
    500mm
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    VPC210
    HK$10,506.00
    SICK
    Guided Radar
    G3/4 Thread, Vertical
    -
    Plastic PBT
    -
    IO-LINK
    -20°C
    +100°C
    -
    30V
    -
    100 mA
    10bar
    -
    PTFE
    500mm
    -
    -
    LFP Cubic
    HK$5,098.70
    Endress+Hauser
    Capacitive
    Threaded Mount
    3.8 to 20.5 mA
    PBT-FR
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    FMI21
    • RS庫存編號 444-799
    • 製造零件編號 LXRC-1XXXGXXAAMAAX / 6085688
    HK$12,641.14
    SICK
    Miniature Photoelectric Sensor
    Threaded
    PNP
    ABS, Plastic
    2m
    -
    -30°C
    +55°C
    -
    30V
    -
    -
    -
    -
    -
    -
    Industrial Use
    -
    G6
    • RS庫存編號 444-825
    • 製造零件編號 LXRC-1XXXFXXAAMAAB / 6085703
    HK$12,641.14
    SICK
    Level Sensor
    Threaded
    2x NPN/PNP
    Stainless Steel
    -
    -
    -40°C
    +70°C
    -
    35V
    M12
    -
    16bar
    -
    -
    -
    Industrial Use
    -
    LXRC
    • RS庫存編號 444-812
    • 製造零件編號 LXRC-1XXXFXXAAEXAX / 6085683
    HK$12,803.81
    SICK
    Level Sensor
    Threaded
    2x NPN/PNP
    Stainless Steel
    -
    -
    -40°C
    +70°C
    -
    35V
    M12
    -
    16bar
    -
    -
    -
    Industrial Use
    -
    LXRC
    • RS庫存編號 444-808
    • 製造零件編號 LXRC-1XXXJXXABEXAB / 6085701
    HK$13,350.04
    SICK
    Level Sensor
    Threaded
    2x NPN/PNP
    Stainless Steel
    -
    -
    -40°C
    +70°C
    -
    35V
    M12
    -
    16bar
    -
    -
    -
    Industrial Use
    -
    LXRC
    • RS庫存編號 444-822
    • 製造零件編號 LXRC-1XXXJXXABMAAB / 6085705
    HK$13,187.46
    SICK
    Level Sensor
    Threaded
    2x NPN/PNP
    Stainless Steel
    -
    -
    -40°C
    +70°C
    -
    35V
    M12
    -
    16bar
    -
    -
    -
    Industrial Use
    -
    LXRC
    • RS庫存編號 444-820
    • 製造零件編號 LXRC-1XXXKXXABEXAB / 6085702
    HK$13,350.04
    SICK
    Level Sensor
    Threaded
    2x NPN/PNP
    Stainless Steel
    -
    -
    -40°C
    +70°C
    -
    35V
    M12
    -
    16bar
    -
    -
    -
    Industrial Use
    -
    LXRC
    • RS庫存編號 444-818
    • 製造零件編號 LXRC-1XXXFXXAAMAAX / 6085687
    HK$12,641.14
    SICK
    Miniature Photoelectric Sensor
    Threaded
    PNP
    ABS, Plastic
    2m
    -
    -30°C
    +55°C
    -
    30V
    -
    -
    -
    -
    -
    -
    Industrial Use
    -
    G6
    • RS庫存編號 444-802
    • 製造零件編號 LXRC-1XXXKXXABEXAX / 6085686
    HK$13,350.04
    SICK
    Miniature Photoelectric Sensor
    Threaded
    PNP
    ABS, Plastic
    300mm
    -
    -30°C
    +55°C
    -
    30V
    M12
    -
    -
    -
    -
    -
    Industrial Use
    -
    G6
    • RS庫存編號 444-827
    • 製造零件編號 LXRC-1XXXGXXAAMAAB / 6085704
    HK$12,641.14
    SICK
    Level Sensor
    Threaded
    2x NPN/PNP
    Stainless Steel
    -
    -
    -40°C
    +70°C
    -
    35V
    M12
    -
    16bar
    -
    -
    -
    Industrial Use
    -
    LXRC
    • RS庫存編號 444-819
    • 製造零件編號 LXRC-1XXXKXXABMAAB / 6085706
    HK$13,187.46
    SICK
    Miniature Photoelectric Sensor
    Threaded
    PNP
    ABS, Plastic
    300mm
    -
    -30°C
    +55°C
    -
    30V
    M8
    -
    -
    -
    -
    -
    Industrial Use
    -
    G6
    • RS庫存編號 444-821
    • 製造零件編號 LXRH-1XXXMXXA7EXAX / 6085719
    HK$13,947.61
    SICK
    Miniature Photoelectric Sensor
    Threaded
    PNP
    ABS, Plastic
    -
    -
    -30°C
    +55°C
    -
    30V
    M8
    -
    -
    -
    -
    -
    Industrial Use
    -
    G6
    • RS庫存編號 444-803
    • 製造零件編號 LXRC-1XXXJXXABMAAX / 6085689
    HK$13,187.46
    SICK
    Miniature Photoelectric Sensor
    Threaded
    PNP
    ABS, Plastic
    -
    -
    -30°C
    +55°C
    -
    30V
    M8
    -
    -
    -
    -
    -
    Industrial Use
    -
    G6
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