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LS380 Capacitive level sensor

The LS380 series uses capacitive principle sensors for liquid level measurement. The signals are processed by the post-processing circuit and then converted into standard industrial electrical signals for output and display. Capacitive sensors are equipped with built-in electrodes that generate capacitance values with metal tanks or boxes. These capacitance values change as the amount of medium in the cavity increases or decreases, thereby determining the liquid level value of the medium.

- All-metal casing design

It adopts a color crystal screen display

The key design and user-friendly menu make the product more convenient to use.

Multiple connection methods can fully meet various specific installation requirements.

The display head that can rotate 330° ensures the best performance under different installation methods

- High-viscosity medium with strong anti-fouling ability

    Product Applications

    I. Hydraulic and Lubrication System

    1. Core application

    Pump performance monitoring and fault diagnosis: Installed at the pump outlet, it monitors the pump's output flow in real time. By monitoring abnormal drops in flow rate, early warnings of increased internal leakage, wear or cavitation in the pump can be issued, enabling predictive maintenance.

    Lubrication system flow distribution monitoring: In the centralized lubrication system of large equipment (such as machine tools, wind turbines, and large bearings), it is installed on each lubrication branch to ensure that each friction point can obtain an accurate and stable amount of lubricating oil, preventing wear and shaft burning caused by oil shortage.

    Cooler efficiency monitoring: By measuring the oil flow rate through the oil cooler and combining it with the temperature signal, the heat dissipation can be calculated to assess whether the cooler's working efficiency is normal.

    System leakage detection: When the system is operating stably, by monitoring the slightest changes in flow rate, it is possible to determine whether there is an external leakage.


    Ii. Petrochemical Industry

    1. Core application

    Trade settlement of raw materials and products: At the handover points between factories, workshops or external sales, it is used for precise measurement of crude oil, refined oil products (gasoline, diesel), chemical raw materials (benzene, ethylene), etc. At this point, the precision requirement is the highest, and it is usually used as a trade settlement statement.

    Process control and proportioning: In the reactor, it is necessary to precisely control the feed ratios of various materials (such as reactants, catalysts, and solvents). The rapid response and high precision of the turbine flowmeter make it an ideal choice for Batch Control and continuous proportional regulation.

    Energy Management and utility metering: Measuring the consumption of media such as fuel gas, natural gas, and steam condensate used for heating, cooling, or driving, for internal cost accounting and energy efficiency management.

    Loading/loading measurement: At trestles and docks, loading measurement is carried out for railway tank cars, road tank cars or ships, which should be fast, accurate and have explosion-proof functions.


    Iii. Test Equipment

    1. Core application

    Engine test bench: Measures the instantaneous and cumulative fuel consumption to calculate the fuel economy (specific fuel consumption) of the engine. This is key data for performance testing and research and development.

    Hydraulic component/system test bench: It is used to test the performance of hydraulic pumps, hydraulic motors and valves, measure their input/output flow under different working conditions, and draw performance curves (such as flow-pressure curves, efficiency curves).

    Wind tunnel and pneumatic tests: Use gas turbine flow sensors to measure the gas flow rate blown into the wind tunnel or a specific test section.

    Calibration device: Due to its high precision and good repeatability, the turbine flowmeter itself is often used as a working reference meter to calibrate other types of flowmeters.


    Iv. Cooling System

    1. Core application

    Heat exchanger and condenser monitoring: Measure the flow rate of cooling water (or coolant) passing through the heat exchanger. By combining the temperature difference between the inlet and outlet, the heat exchange capacity can be calculated in real time and the heat exchange efficiency can be evaluated. Performance degradation caused by scaling or blockage can be detected promptly.

    Critical equipment cooling guarantee: Provide flow monitoring for the cooling circuits of large motors, frequency converters, injection molding machines, high-power lasers and other equipment to ensure that sufficient coolant flows through, preventing equipment from overheating, shutting down or getting damaged.

    Cooling tower circulating water monitoring: Monitor the circulating water volume of the entire cooling water system as the basis for system energy consumption optimization and fault diagnosis.

    Leakage detection: By monitoring the abnormal decrease in the flow rate of the closed-loop cooling system, it is determined whether there are leakage points in the system.

    technical parameters

    Parameter
    Specification
    Measuring diameter
    DN6... DN50
    Supply voltage
    16... 30Vdc
    Output type
    Switch quantity (PNP/NPN) /IO-Link/RS485; Analog quantity (4-20mA/1-5v/0-10v)/pulse/frequency
    Switching load
    <200mA
    Response time
    0.1 to 5.0 seconds can be set (factory default is 1.0 seconds)
    Switch accuracy
    ≤±0.5% range
    Current-type analog output
    ≤±0.5% range
    Wiring protection
    Reverse phase, overload, short circuit protection
    Display
    Color crystal screen
    Pressure resistance
    400bar (internal thread type)
    Temperature - Temperature range
    -20... 80℃/ Optional -30... 180 ℃
    Temperature - Ambient temperature
    -20... 75 ℃
    Temperature - Storage temperature
    -10... 60 ℃
    Temperature - Accuracy
    ≤±1.0% linearity
    Materials - Meter head housing
    Engineering plastic
    Materials - Shell
    304L
    Materials - Turbine
    Duplex steel
    Materials - Transmission component
    Sliding bearing
    Protection grade
    IP67
    Cable exit method
    M12x1 connector
    Calibration standard
    46# lubricating oil (25°C)

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