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PT500-802
    Model: PT500-802
    The minimum differential pressure is 100Pa;
    3-5 times withstand voltage, suitable for dry gas differential pressure measurement;
    High precision, stable, digital calibration adjustment, amplification integrated circuit;
    Zero point, fullness, temperature compensation and linear compensation;
    Aluminum alloy oxidation shell; 8mm + m10quick plug process connection;

    Common keywords:
    Micro differential pressure transmitter micro differential pressure sensor
    Micro differential pressure transmitter
    Product description of strain type pressure transmitter:

    Model: PT500-802
    The minimum differential pressure is 100Pa;
    3-5 times withstand voltage, suitable for dry gas differential pressure measurement;
    High precision, stable, digital calibration adjustment, amplification integrated circuit;
    Zero point, fullness, temperature compensation and linear compensation;
    Aluminum alloy oxidation shell; 8mm + m10quick plug process connection;
    Common keywords:
    Micro differential pressure transmitter micro differential pressure sensor
    Micro differential pressure transmitter


    Chip:
    The minimum differential pressure is 100Pa;
    3-5 times withstand voltage, suitable for dry gas differential pressure measurement;
    Zero point, fullness, temperature compensation and linear compensation;
    High impedance, high precision and high stability;
    More than 1 million times of service life;

    Signal processing and output:
    24 bit ADC sampling and processing chip;
    DSP digital signal conditioning algorithm;
    Multipoint linear temperature calibration;
    Voltage and current overload protection;
    Standard industrial signal output: 4-20mA (two-wire system), 0-20mA (three wire system), 0-5vdc, 0-10vdc, 0.5-4.5vdc (three wire system);

    Digital communication signal output: rs485-rtu, ultra-low power rs485-rtu
    Advanced 32 bit microprocessor and 24 bit ADC are adopted
    The transmission protocol is MODBUS-RTU
    Support baud rate: 1200 ~ 57600bps, check bits: none, odd, even
    Support the user's secondary calibration, reset, anti reset, restore factory operations
    Support 11 kinds of units switching, support floating point, integer, percentage, formatted output
    The acquisition interval of 0 ~ 43200 seconds (12 hours) can be set, which can not only meet the needs of high-speed acquisition, but also trigger acquisition once to 

    minimize power consumption

    Digital communication signal output: CAN2.0B
    Measurement rate: 10... 1000Hz can be set, the default is 50 Hz

    CANopen output built-in complete CANopen protocol stack, in line with ds301, ds404 specifications, support LSS services, support bootloader online upgrade;
    Support baud rate (kbps) 20 / 50 / 100 / 125 / 250 (default) / 500 / 800 / 1000; support features of NMT / heartbeat / SDO / PDO / LSS / bootloader; CANopen protocol 

    stack can be customized according to user requirements;

    J1939 output has built-in J1939 protocol stack. PGN, SPN and name can be configured freely, and bootloader online upgrade is supported;
    Support baud rate (kbps) 20 / 50 / 100 / 125 / 250 (default) / 500 / 800 / 1000; support free configuration of features such as PGN, SPN and name
    The J1939 protocol stack can be customized according to the user's requirements;

    Structure:
    Aluminum alloy oxidation shell; 8mm + m10quick plug process connection;
    Small structure, tight wire nut waterproof, electrical connection;
    Supporting four / five core shielded cable;

    Application:
    Pressure measurement and monitoring of negative pressure, dust-free workshop, Department, etc;
    Pressure measurement and monitoring of buildings, ventilation, etc;
    Pressure measurement and monitoring of dust collection pipeline, waste gas treatment, etc;

    Application fields:
    • Smart city

    • Fire fighting system

    • Natural gas pipeline

    • Air supply system

    Specification parameter

    Measuring medium: dry gas
    Pressure form: differential pressure
    Range:
    0~100、200、300、500、1000(Pa);
    0~1、2、3、5、10、20、30、40、50、70、100(KPa);
    -100KPa~-10KPa~0~100(KPa);
    ±500Pa~±100KPa;
    Static pressure (withstand voltage): 3 ~ 5 times of measuring range
    Comprehensive accuracy: ± 0.25% FS; ± 0.5% FS; ± 1% FS
    Nonlinearity: ≤ 0.5% FS
    Repeatability: ≤ 0.25% FS
    Output signal:
    Current type: 4-20mA two-wire system; 4-20mA / 0-20mA three-wire system
    Voltage type: 0 ~ 5VDC, 0 ~ 10VDC, 0.5 ~ 4.5vdc three wire system
    Digital type: rs485-rtu, low power rs485-rtu
    CAN2.0B (supports CANopen, J1939 Protocol)
    Supply voltage:
    24VDC(9~30VDC)
    5VDC (0.5 ~ 4.5vdc output type)
    3.1 ~ 6.1vdc (low power rs485-rtu)
    Service life: ≥ 1 million times
    Insulation impedance: ≥ 1000 m Ω / 100VDC
    Load impedance: current output: ≤ 800 Ω; voltage output: ≥ 50K Ω
    Medium temperature: - 20 ~ 70 ℃/
    Ambient temperature: - 20 ~ 70 ℃
    Compensation temperature: 0 ~ 60 ℃
    Response time: ≤ 3MS
    Overload pressure: 150% FS
    Failure pressure: 3 times of measuring range (less than 40MPa); 2 times of measuring range (measuring range greater than 41mpa)
    Electrical connection: Waterproof tight wire nut directly leads out, can be matched with explosion-proof electrical connection
    Protection grade: IP65 / IP68
    Connecting cable: tightening nut, standard length: 3M
    Connection material: aluminum alloy
    Process connection: φ 8 quick plug + M10 thread (Universal) Specification can be made by users







    Ordering considerations

    Precautions for ordering PT500-802 products
    1. Product range selection:
    In order to achieve the best effect of product precision, life, stability and other functions, the range selection of the product is calculated according 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 measuring range;
    The static pressure (withstand voltage) is 3 to 5 times of the range value, that is, the maximum pressure value at the high pressure end;

    2. Product power supply and output:
    The selection of power supply range is determined according to the output specifications of the product:
    Conventional 4-20mA / 0-20mA, 0-5V / 10V output, DC 12-30vdc power supply;
    General rs485-rtu output, DC 12-30vdc power supply;
    0.5-4.5vdc output, DC 5VDC;

    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

    It is strictly prohibited that the power supply scope of the product exceeds the specified standard of the product;
    The measuring medium of the product is: dry gas. It is forbidden to measure liquid, steam or gas medium with high humidity;
    It is forbidden to use hard objects (such as: screwdrivers, fingers, nails, etc.) to make the pressure diaphragm output by pressure measurement;
    The power supply and signal line should be connected correctly according to the product specification;
    When the product is installed, the pressure pipe is made of 8mm hard gas pipe to prevent the expansion of the gas pipe under gas pressure;
    It is strictly prohibited that the medium temperature, pressure range and excitation voltage of the measured system exceed the rated range of the transmitter;
    Pay attention to protect the outgoing cable of transmitter. When the span is too large, it is recommended to use metal tube for protection or overhead;
    Pressure transmitter is a kind of precision measuring instrument. Do not force impact and fall to avoid damaging the core body
    The product is installed in a ventilated, dry and non corrosive environment. It is installed in the open air with protective devices to avoid direct sunlight;
    Do not let water / water leak / soak into the instrument. Install protective devices in the open air to avoid direct sunlight;

    Common problem
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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

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