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HPT Series Melt Pressure Transducer And Transmitter
Melt Pressure Transducers
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HPT Series Melt Pressure Transducer And Transmitter

DWEL Melt Pressure Transducers and Transmitters are designed for accurate melt pressure measurement in extrusion and polymer processes, capable of withstanding temperatures up to 400°C. Manufactured with high-quality materials and alloyed elastic diaphragms, these devices undergo precise processing and calibration for exceptional reliability. Key features include external zero clearance or an optional magnetic auto-zero clearance, ensuring stable performance and minimal shifts in zero and span, even with temperature variations. Known for their high accuracy and stability, DWEL transducers are widely used in plastic extrusion lines, as well as the polymer and fiber industries. They provide an excellent alternative to brands like Dynisco, Gefran, and Graeff.

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    Introduction

    DWEL Melt Pressure Transducers and Transmitters are designed for accurate melt pressure measurement in extrusion and polymer processes, capable of withstanding temperatures up to 400°C. Manufactured with high-quality materials and alloyed elastic diaphragms, these devices undergo precise processing and calibration for exceptional reliability. Key features include external zero clearance or an optional magnetic auto-zero clearance, ensuring stable performance and minimal shifts in zero and span, even with temperature variations. Known for their high accuracy and stability, DWEL transducers are widely used in plastic extrusion lines, as well as the polymer and fiber industries. They provide an excellent alternative to brands like Dynisco, Gefran, and Graeff.

    Features

    ●Better than ±0.5% accuracy
    ●4~20mA, 0~10V, 3.33mV/V outputs 
    ●0-35 to 0-2000 bar / 0-500 to 0-30000 psi 
    ●Optional safe substance filled 
    ●Internal 80% shunt calibration 
    ●Standard Inconel diaphragm 
    ●Temperature compensation 
    ●External and optional magnetic auto-zero

    Pressure range

    0~35 to 2000bar(0~500 to 0~30000psi)

    Accuracy

    ±0.25% FS, ±0.5% FS,±1.0% FS

    Repeatability

    0.2% FS,0.4%, 0.8% FS

    Input excitation

    Transmitter:24Vdc recommended, 9-36Vdc

    Transducer:10Vdc recommended, 6-12 Vdc

    Output signal

    0~10V, 4~20mA, 3.33mV/V,3.0mV/V,2.0mV/V

    Maximum diaphragm temperature

    662F° (350℃) for rigid stem

    752F °(400℃) for flexible

    Zero shift due to temperature change

    20 psi/100℃

    0.15MPa/100℃

    Process connection

    1/2-20 UNF thread (45°conical seal)

    M14x1.5,M18x1.5,M22x1.5 etc

    Maximum Overload Pressure Rating

    1.5 x FS(<1000bar)

    1.2 x FS(>1000bar)

    Pressure Units

    PSI, Bar, MPa or Kg/cm2

    Internal Shunt Calibration

    80% FSO

    Measurement principle

    4-arm bonded foil strain gage

    Wheatstone bridge

    Electrical Connection

    5PIN,6PIN

    Max Torque

    30Nm(22lbf ft)

    Temperature sensor

    E,J,K type or Pt100