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4-20mA output PT100 Temperature transducer for 24VDC

The clamp-type PT100 temperature transmitter is a quick-install instrument that integrates temperature measurement and transmission. It has a built-in Class A Pt100, whose resistance changes linearly with the temperature of the medium. The slight resistance changes are sent to a built-in high-precision amplification and isolation transmission module, and after linear compensation, signal conditioning, and computational processing, they are converted into a standard 4–20mA analog signal. This instrument has an accuracy of ±0.15°C, operates on a two-wire 24VDC supply, and outputs 4–20mA. The common diameter is 50.5mm, and it supports quick installation and removal without welding, ensuring efficient installation and maintenance. The overall device has a protection rating of IP67. It is suitable for sterile conditions in food, pharmaceutical, and bioengineering industries, offering stable and reliable performance with full compliance throughout.

    Working Principle

    The resistance of a PT100 thermal resistor changes with temperature: as the temperature rises, the resistance increases, and vice versa. The measurement circuit inside the transmitter, such as a Wheatstone bridge or constant current circuit, measures the resistance value of the PT100. Since the resistance-temperature relationship of a PT100 is not perfectly linear, the microprocessor or dedicated chip built into the transmitter linearizes the signal according to standard calibration tables. At the same time, it compensates for drift caused by the influence of ambient temperature on its electronic components, amplifies and conditions the small resistance change signal, and finally outputs a 4-20 mA current signal, a 0-5V/0-10V voltage signal, or digital signals 

    Product Features

    1.High Precision: PT100 itself has high accuracy, reaching Class A (±0.15℃) or Class B (±0.30℃). After being processed by the transmitter, it can provide accurate temperature data for industrial measurements.
    2.Wide Temperature Range: It can meet the temperature measurement requirements for various industrial scenarios and special environments.
    3.Strong Anti-Interference Capability: Its 4-20mA current output signal has strong anti-interference ability, allowing long-distance transmission and enabling the detection of circuit disconnection through an "active zero" point.
    4.Multiple Output Options: Supports both analog and digital signal outputs, meeting the interface requirements of different control systems and facilitating connection with systems such as PLC and DCS.

     APPLICATION  SCENARIOS

    1. Food and Beverages: dairy fermentation tanks, beer pasteurization, juice UHT, CIP circulation pipelines;

     
    2. Pharmaceutical and Biotechnology: water for injection systems, bioreactors, sterilization cabinets, purified water circuits;

     
    3. Fine Chemicals / Cosmetics: sterile ingredient tanks, emulsification tanks, clean pipelines;

     
    4. Industrial Pipelines: non-hot-work rapid temperature measurement points (surface clamp type).

    Product detail

    ESMWZP-WBZC- (2)ESMWZP-WBZ- (2)

    Technical Specifications

    Product Name

    PT100 Temperature transmitter

    Input signal

    PT100

    Measuring range

    -50~200℃Normal temperature

    -50~400℃High temperature

    Output signal

    4-20mA/0-5V/0-10V/1-5V/RS485

    Power supply

    12~24VDC

    Probe size

    6*30mm 50mm 100mm 150mm 200mm 250mm 300mm

    (Special sizes can be customized)

    Installation method

    Default: Clamp DN50.5

    Note

    ≤200℃Normal temperature

    200℃~400℃: High temperature

    Wiring Definition

    This is a paragraph

    1. Black, White - Power
    2. Green - Ground
    3. Yellow - Common (COM), Blue - Normally Closed (NC), Red - Normally Open (NO)

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