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FTS520 Electronic Flow Switch (Sensor)

The FTS520 flow and temperature integrated sensor combines vortex flow measurement technology and temperature sensing technology to achieve synchronous monitoring of fluid flow and temperature. Its working principle is based on the vortex street effect, that is, when the fluid flows through the vortex generator, a series of alternately arranged vortices with opposite rotation directions will be generated behind the generator. The formation and shedding frequencies of these vortices are directly proportional to the flow velocity of the fluid. By detecting the shedding frequency of the vortices, the flow rate of the fluid can be calculated. Meanwhile, the integrated temperature sensor monitors the fluid temperature in real time to ensure the accuracy and reliability of the data. This sensor features a compact structure, accurate measurement and good stability, and is widely used in industrial automation control systems.

    Product Features

    - Two groups of 4-20mA analog signal output;

    - Supports digital output, RS485 customizable

    - Not affected by pipe static pressure

    - Simple structure, no moving parts

    - Easy installation, no on-site calibration or commissioning required, maintenance-free

    - Strong anti-contamination ability

    Product Application

    Cooling water, circulating water, critical water flow monitoring;

    organic and inorganic solution flow monitoring;

    freeze protection, spray system, sewage protection, etc.

    Application in cooling water systems: Suitable for clean or lightly contaminated liquids with stable flow rates, ideal for vortex flow meter measurements. Commonly used in industrial cooling towers, heat exchangers, refrigeration units, etc., to monitor inlet/outlet water flow, ensuring cooling efficiency. Advantages: No moving parts, low maintenance costs.

    Application in recirculating water systems: Suitable for long-term stable flow monitoring in recirculating water systems (such as central air conditioning, boiler feedwater). Provides high reliability. Applicable to closed or open recirculating systems, monitoring pump operation status or energy management. Advantages

    Technical Parameters

    Flow range

     

    Liquid

    0.5-400 L/min, depending on the size of the pipeline.

    For specific standard flow rates, please refer to the flow range table.

     

    Gas

    Calculated based on specific applications

    Temperature range

    0 to 100°C

    Accuracy

    < ±3.0%F.S (flow rate), ≤2.0°C (temperature)

    Repeatability

    < 2.0%

    Liquid contact material

    PPS/SUS304 (stainless steel)

    Pressure rating

    10bar (Maximum pressure resistance 16bar)

    Ambient temperature

    -10 to 65°C

    Medium temperature

    -20 to 90°C

    Process connection

     

    Thread type

    3/8~2"

    Power supply

    18-28VDC

    Linearization

    5-point flow linear curve

    Signal output

    Three-wire 4-20mA, linearly related to flow rate and temperature, maximum 500Ω,Pulse frequency, maximum 1 kHz, user-defined,For example, 1 pulse per liter or 1 liter per pulse,IO-Link/PNP/NPN/RS485

    PNP/NPN switch load

    24VDC/200mA

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