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RPT Series Safety Relay Type Melt Pressure Transmitter
Melt Pressure Transducers
RPT.jpg

RPT Series Safety Relay Type Melt Pressure Transmitter

DWEL RPT Series Melt Pressure Transmitters are equipped with high-performance digital chips and feature a circuit design that meets SIL2 and PL 'c' safety performance standards. The transmitters are equipped with relay outputs that control the range limits, ensuring the safety of extrusion equipment and production lines. This design helps to prevent equipment damage and reduce the risk of unpredictable safety accidents due to pressure overload. The RPT Series is an excellent alternative to brands like Dynisco, Gefran, and Graeff.

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    Introduction

    DWEL RPT Series Melt Pressure Transmitters are equipped with high-performance digital chips and feature a circuit design that meets SIL2 and PL 'c' safety performance standards. The transmitters are equipped with relay outputs that control the range limits, ensuring the safety of extrusion equipment and production lines. This design helps to prevent equipment damage and reduce the risk of unpredictable safety accidents due to pressure overload. The RPT Series is an excellent alternative to brands like Dynisco, Gefran, and Graeff.

    Features

    ●Better than ±0.5% accuracy
    ●PL’c’ and SIL2 certified
    ●4~20mA, 3.33mV/V outputs 
    ●Safe relay function  
    ●Optional safe substance filled 
    ●E-connection 7pin & 8pin
    ●Short-circuited auto zero function
    ●Temperature compensation 
    ●External and optional magnetic auto-zero
    ●Special coating diaphragm corrosion resistance

    Specifications

     

    Pressure range

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

    Accuracy

    ±0.25% FS, ±0.5% FS

    Repeatability

    0.2% FS,0.4%FS

    Input excitation

    15~36VDC(4~20mA), 6~12VDC (3.33mV/V)

    Output signal

    4~20mA, 3.33mV/V

    Relay output

    Open, 10%,20%...100% optional

    Relay contact performance

    5~220VDC, 1A, 0.2%FSO

    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

    7PIN,8PIN

    Max Torque

    30Nm(22lbf ft)

    30Nm(22lbf ft)

    E,J,K type or Pt100