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PT500-303
    Model: pt500-303
    Flat film / diaphragm pressure sensing and anti blocking structure design, suitable for melt / fluid medium;
    Adopt imported pressure sensitive chip; select the chip technology;
    Constant voltage supply, differential bridge output;
    Imported elastic materials, precision machining integrated structure, strict machining, heat treatment, aging process;
    More than 1 million service life;
    High impedance, high precision and high stability; high pressure, impact resistance and fatigue resistance;
    Common keywords:
    Flat film pressure core membrane pressure core thick film core body
    Diaphragm pressure core flush membrane pressure core anti blocking pressure core
    Flat film pressure chip, flat film pressure chip, thick film pressure chip
    Product description of strain type pressure transmitter:

    Chip:

    Flat film / diaphragm pressure sensing and anti blocking structure design, suitable for melt / fluid medium;

    Adopt imported pressure sensitive chip; select the chip technology;

    High impedance, high precision and high stability;

    elastomer:

    Wide range (0-50kpa ~ 70MPa / - 100KPA ~ 0 vacuum)

    Imported elastic materials, strict machining, heat treatment, aging treatment process;

    More than 1 million service life;

    Structure:

    Thick film structure: deep argon arc welding, connecting elastic material and process joint, high strength, impact resistance, fatigue resistance;

    Thin film structure: laser welding, connecting elastic materials and process joints, silicon oil medium transfer pressure, fast response, fatigue resistance, small range;

    The overall structure is small and the process connection mode is diversified (m20x1.5, G1 / 2, ZG1 / 2, 1 / 2NPT (thread diameter ≥ 17mm));

    Process connection material: 304 or 316;

    Four core color wire or enameled wire;

    Signal processing:

    Constant voltage supply, differential bridge output;

    With temperature compensation;

    Application:

    High pressure sensing core of flat film pressure transmitter;

    Melt / fluid / viscous medium pressure measurement and control;

    Pressure measurement in other civil / industrial automation fields

    Application fields:
    Specification parameter
    1、 Technical parameters

    Measuring medium: melt, fluid, liquid containing impurities, gas (if: paint, toothpaste, pigment, etc.)

    Pressure form: gauge pressure, absolute pressure

    Range: 0 ~ 0.6, 1, 2, 5, 10, 15, 20, 25, 30, 40, 50, 60 (MPA);

    0~50、100、150、200、300、400、500、600(KPa)

    Comprehensive accuracy: ± 0.25% FS; ± 0.5% FS; ± 1% FS

    Non linear: ≤ 0.25% FS

    Repeatability: ≤ 0.1% FS

    Output signal: 1.0 ± 0.5mv/v (four wire system / six wire system) differential bridge output

    Power supply voltage: constant voltage: 5VDC (3-10vdc)

    Insulation impedance: ≥ 1000m Ω / 100VDC

    Output impedance: 1500 Ω

    Medium temperature: - 20-80 ℃

    Ambient temperature: - 20 ~ 70 ℃

    Compensation temperature: 0 ~ 70 ℃

    Response time: ≤ 5ms

    Overload pressure: 150% FS

    Failure pressure: 3 times of range (range less than 200MPa); 2 times of range (range greater than 201mpa)

    Electrical connections: direct leads

    Protection grade: IP65

    Connecting cable: four core color cable, standard length: 50mm

    Connecting material: imported elastomer material

    Process connection: m20x1.5, G1 / 2, ZG1 / 2, 1 / 2NPT (thread diameter ≥ 17mm)


    2、 Specification and model


    3、 Structural dimensions


    4、 Electrical connection


    5、 Installation method

    Ordering considerations
    1. Product range selection:
    In order to achieve the best effect of product accuracy, life, stability and other functions, the range selection of the product is calculated by referring to the following formula:
    Range = x (1.2-1.5) times of the maximum system pressure;
    The actual measuring pressure range of the product should be 15% - 80% of the range;

    2. Product power supply and output:
    The power supply of pressure core is constant voltage source (3-10vdc);
    The core output is differential bridge output;
    The output signal is about (0.6-1.5) MV / V

    3. The user should understand the measurement medium characteristics of the product:
    Medium specification, medium temperature, medium purity (whether containing impurities or particles, etc.);

    4. Users should understand the installation environment and installation method of the product:
    Indoor or outdoor installation;
    Ambient temperature;
    Required sealing level;
    Vibration range of equipment;
    Installation method: thread, flange, special structure;
    Whether the installation space meets the overall dimension of the product;

    Precautions for use
    The power supply of the product is constant voltage power supply, 5VDC (range: 3-10vdc);
    It is strictly prohibited to use hard objects (such as screwdriver, finger, iron nail, etc.) to make the pressure core body under pressure measurement output;
    The power and signal wires shall be correctly wired according to the specifications of the ordered products;
    During product installation, the stressed part is "process connection hexagon wrench position", and the wrench specification corresponds to hexagon;
    It is strictly prohibited that the medium temperature, pressure range and excitation voltage of the tested system exceed the rated use range of the transmitter;
    Pay attention to the protection of the lead of the pressure core. When it is connected with the amplification conditioning board or the acquisition card, the lead is strictly prohibited from being pulled;
    The pressure core is a precision measuring instrument. Do not force impact or smash to avoid damaging the core
    The product is installed in a ventilated, dry and non corrosive environment, and installed in the open with protective devices to avoid direct sunlight;
    No water or water leakage is allowed for the product instrument, and protective devices shall be installed in the open air to avoid direct sunlight;

    Common problem
    Question 1: no output of pressure core?
    Reason                       Processing method
    Lead open circuit            Check leads and repair
    Broken Bridge                Unable to repair, replace
    Poor wire connection         Rewiring

    Question 2: is the pressure core output correct?
    Reason                                  Processing method
    Wrong bridge and road connection        Connect the wires correctly according to the product instructions
    External force on chip sealing          Check and remove external force
    Core or chip damage                     Unable to repair, replace

    Question 3: unstable pressure core output information?
    Reason                                                Processing method
    Poor wire contact                                     Check leads and repair
    External force on chip sealing                        Check and remove external force
    Power supply of constant voltage source is unstable   Check and repair
    Input impedance mismatch of constant voltage source   Replace
    Insufficient power of constant voltage source         Replace
    Overpressure or large impact of elastomer             Replace
    Poor insulation                                       Check and repair
    Proposal
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    Foshan puliang Electronic Co., Ltd

    Tel:0757-26619568 Fax: 0757-26619508

    24-hour online technical support:13790092618

    Cloud platform:www.puliangiot.com

    Address:501, block 8, phase 5, Rongli tianfulai industrial city, Ronggui town, Shunde District, Foshan City

    Copyright©Foshan puliang Electronic Co., Ltd