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PT500-108
    Model: PT500-108
    All electronic structure of digital pressure gauge adopts imported pressure sensing chip;
    Battery powered, easy to install on site;
    High precision A / D conversion, low temperature drift amplifier;
    Large screen LCD display, high resolution, ignoring value error.

    Common keywords:
    Digital pressure gauge electronic pressure gauge
    Pressure gauge with digital display
    Precision pressure gauge battery pressure gauge
    Low power pressure gauge dynamic pressure gauge
    Product description of strain type pressure transmitter:


    Chip:
    Adopt imported voltage sensing chip; select the chip technology, with zero, full range compensation, temperature compensation;
    Diffused silicon core, high sensitivity, large output, zero point, full range compensation, temperature compensation, suitable for small range pressure transmitter;
    Strain gauge core, high-strength elastic deformation pressure sensing material, equipped with temperature compensation, has the advantages of impact resistance and fatigue resistance, suitable for general range pressure transmitter;

    Signal processing and control output:
    4-digit digital display of current pressure value, display range: - 1999-9999, five engineering unit options: psi, bar, kPa, kg / C ㎡ MPa;
    High precision stable amplification IC, 24 bit ADC sampling processing chip, DSP digital signal conditioning algorithm, multi-point line temperature calibration;
    Large screen LCD display, high resolution, ignoring value error;
    Peak holding function, recording the maximum pressure value during measurement;
    Pressure percentage dynamic display, (progress bar display), sampling rate up to 4 times / second;;
    Select the automatic shutdown function of 1-15min; micro power consumption, working in the power saving mode for more than 2 years, continuous working for 2000 hours;
    Parameter correction function, which can correct zero point and error value of instrument on site;

    Structure:
    Small structure, full seal welding structure, impact resistance, fatigue resistance, high reliability, a variety of process connection;
    Simple operation, easy debugging, safe and reliable;
    High degree of protection, suitable for installation under various working conditions;
    Process connection material, 304, diversified modes (M20, M16, M12, G1 / 4, G1 / 2, 1 / 2NPT, 1 / 4NPT, etc.);

    Application:
    Hydropower, tap water, petroleum, chemical, mechanical, hydraulic and other industries
    Replace mechanical pointer pressure gauge;
    Pressure measurement in other civil / industrial automation fields

    Application fields:
    • Oil pressure system

    • Natural gas pipeline

    • Air supply system

    • Gas supply system

    Specification parameter
    Measuring medium: liquid and gas (compatible with connecting materials of product process)
    Pressure form: gauge pressure, absolute pressure
    Range: 0 ~ 0.6 ~ 60MPa ~ 100MPa
           -0.1~0~0.6~5MPa
           -100KPa~10KPa~40MPa
           ±10KPa~±100KPa
    Comprehensive accuracy: ± 0.25% FS; ± 0.5% FS; ± 1% FS
    Non linear: ≤ 0.25% FS
    Repeatability: ≤ 0.1% FS
    Power supply voltage: 9V battery (charging / disposable)
    Display mode: 4-digit nixie tube
    Display range: - 1999 - 9999
    Display unit: psi, bar, kPa, kg / C ㎡, MPA optional
    Automatic shutdown: 1-15min optional
    Switch life: ≥ 1 million times
    Insulation impedance: ≥ 1000m Ω / 100VDC
    Medium temperature: - 20-80 ℃
    Ambient temperature: - 20 ~ 70 ℃
    Compensation temperature: 0 ~ 70 ℃
    Response time: ≤ 5ms
    Acquisition frequency: 4 times / second
    Overload pressure: 150% FS
    Failure pressure: 5 times of range (range less than 5MPa); 3 times of range (range greater than 5MPa)
    Electrical connection: M12 electrical connector (four core / five core)
    Protection grade: IP65
    Connecting cable: four core / five core shielded cable, standard length: 3M
    Connection material: 304 / 316L

    Process connection: M20x1.5, G1/2, G1/4, ZG1/4, 1/4NPT, ZG1/2, G3/8, M12x1.5

    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:
    Power supply range: 9VDC battery;
    Battery Specification: 9V disposable and rechargeable battery for common multimeter;

    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 mode 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
    Product power supply 9VDC battery;
    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;
    When installing the battery, connect the wires correctly;
    When the product is installed, 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;
    The product is installed in a ventilated, dry and non corrosive environment, and installed in the open with protective devices to avoid direct sunlight;
    Try to avoid direct access to user devices or electrical and electronic devices that cause interference;
    Common problem
    Question 1: no LCD display?
    Reason----handling method
    No battery----replace battery
    Wrong Battery Specification----replace 9V battery
    LCD screen damaged----return to the factory for repair and replace the display screen
    Burn out of integrated amplifier board----return to factory for repair and replace the amplifier board

    Question 2: LCD display characters incomplete or missing?
    Reason----handling method
    Battery dead or low----replace battery
    Poor contact of internal circuit----return to factory for repair
    LCD screen is damaged----replace the display screen

    Question 3: does the displayed value deviate from the actual pressure value?
    Reason----handling method
    The pressure tap hole of the pressure gauge is blocked----clean the pressure tap hole of the pressure gauge
    The connecting pipe of pressure gauge is blocked----clean the connecting pipe
    Products with high pressure impact----return to factory for repair
    Pressure core damaged----return to factory for repair
    Damage of integrated amplifier board----return to the factory for repair and replace the amplifier board

    Question 4: is the displayed value unstable?
    Reason----handling method
    Unstable pressure source----check whether the pressure of the pressurization system is stable
    No grounding wire----pressure gauge and equipment are grounded
    There is a large magnetic field in the installation position of the pressure gauge----install a shield or replace the installation position
    Stone sand or sundries in pressurized pipeline----cleaning
    Pressure medium temperature is too high----check whether the medium temperature is within the allowable range of the transmitter
    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

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