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PTL902 monocrystalline silicon differential pressure transmitter

The PTL902 monocrystalline silicon pressure transmitter adopts 0.075% high precision and good stability, which is used to measure the liquid level, density, and pressure of liquids, gases, or vapors. It is then converted into a 4-20mAHART current signal output and can also communicate with HART375 or BST Mod for parameter setting and process control. The difference from traditional pressure transmitters is that it uses nano monocrystalline silicon as the sensor material. Equipped with 5-digit backlit LCD digital display; Multiple display functions (pa, kpa, Mpa,%, psi) with built-in three button quick operation and on-site adjustment function; Equipped with various corrosion-resistant materials; Comprehensive self diagnostic function. Range ratio (0-6kpa): 3:1, medium range ratio: 4:1, maximum range ratio: 4:1. Intelligent static pressure compensation and temperature compensation protect the transmitter from the influence of temperature, static pressure, and overpressure, minimizing the comprehensive measurement error on site, enabling high-precision measurement of positive and negative zero point migration without the need for linearity adjustment.

  • Introduction

    The PTL902 monocrystalline silicon pressure transmitter adopts 0.075% high precision and good stability, which is used to measure the liquid level, density, and pressure of liquids, gases, or vapors. It is then converted into a 4-20mAHART current signal output and can also communicate with HART375 or BST Mod for parameter setting and process control. The difference from traditional pressure transmitters is that it uses nano monocrystalline silicon as the sensor material. Equipped with 5-digit backlit LCD digital display; Multiple display functions (pa, kpa, Mpa,%, psi) with built-in three button quick operation and on-site adjustment function; Equipped with various corrosion-resistant materials; Comprehensive self diagnostic function. Range ratio (0-6kpa): 3:1, medium range ratio: 4:1, maximum range ratio: 4:1. Intelligent static pressure compensation and temperature compensation protect the transmitter from the influence of temperature, static pressure, and overpressure, minimizing the comprehensive measurement error on site, enabling high-precision measurement of positive and negative zero point migration without the need for linearity adjustment.


  • Structure and dimensions

    PTL902尺寸图


  • Parameter
    range    ±1kPa~±6kPa
    output signal     DC4~20mA+HART
    Allow load resistance    0~600 Ω (when DC24V) Note: A standard (250 Ω ) load resistance
        is required for communication with the handheld communicator
    source    General use: DC10.5~45V; primary safety explosion-proof:
        DC10.5~26V
    Communication line conditions    Line length: longest 2km(0.75~1.25mm ² cable for control
        instrument, twisted pair cable beyond 1km)
        Load resistance: 250~600 Ω (DC24V, including cable resistance)
        Load capacitor: below 0.55 mF
        Load inductance: below 3.3 mH
        Interval of power line: above 15cm (please avoid parallel wiring)
    saturation current    Upper limit 20.8mA; lower limit 3.8 mA
    Alarm current     Upper 22.8mA; lower 3.6 mA (mode available)
    Adjust the function    Zero and full range points can be adjusted locally from the three
        keys on the top of the shell or can be adjusted remotely by using
        the configuration software
    zero shift     Migrmigrate in the-20% to + 20% of the maximum range
    ambient temperature    -40~+85℃
    storage temperature    -40~+90℃
    weather ability     DIN40040GPC
    EMC applied code    EN1326-1：2006
    Square-root output accuracy    Output: 50% accuracy: the same as the reference accuracy; output:
        50%~ drop point accuracy: reference accuracy 50 / square root
        output (%)
    Power impact    ±0.005%/1V
    Installation ocation impact    The change of the installation position in the parallel direction of
        the membrane will not cause the impact of zero drift. If the
        position of the installation and the membrane exceeds 90, the zero
        drift within 0.4 KPa can be calibrated by zero adjustment
    response time    90ms
    damp     The time constant can be adjusted within 0 to 99.9 seconds
    Filter constant    Can be adjusted within 0 to 160 uA
    Self-stability coefficient    Can be adjusted within 0~2%


  • Process

    Retail: Contact customer service - Consult product parameters-Confirm product model-Payment-Logistics shipment-Sign for delivery
    Key customers: Contact customer service-Consult industry solutions-Confirm product model parameters-Sign relevant technical contracts-Payment-Logistics shipment-Sign for receipt


  • After-sales

    1. LONGLV provides customers with installation and debugging services, as well as other technical consultations. If necessary, technical personnel can provide on-site technical training. If the customer has any technical questions, the technical personnel will provide a response within 4 hours.
    2. LONGLV products are strictly designed and produced in accordance with the ISO9001 international quality system, with a 1-year warranty for sensor products and a 3-year warranty for instrument products, with a 7-day return and exchange policy and lifelong maintenance.
    (Human damage is not covered by the warranty, and customized products without quality issues are not returned or replaced.)
    3. For returns and exchanges caused by quality issues, Longlv will bear the return and exchange shipping costs. The cost of returns andexchanges for non quality issues will be borne by the customer.
    Note: Quality issues refer to customized parameters such as function, size, specifications, and installation method that are not customized according to customer requirements, do not meet functional requirements, have dimensional errors, and have inaccurate accuracy (excluding within the error range).
    Customized products require confirmation of drawings by both parties before processing and production. If the product does not meet customer requirements, a written objection must be raised within two weeks. If the customer does not raise an objection within the specified time limit, it will be deemed as qualified acceptance.
    If an objection is raised within the deadline and it is confirmed by both parties that it is a product quality issue or production has not been carried out according to the requirements confirmed by both parties, it can be exchanged or refunded. If there are no quality issues and the shipping model andthe contract signed model are complete and correct, no return or exchange service will be provided.
    4. The products returned for repair will have a test result issued within 3 working days and the repair will be completed within 7 working days.
    After sales consultation
    Technical consultation, factory repair, invoices, complaint suggestions, and other related issues. After sales service hotline 021-51601181


  • Room 910, Building 1, Zikun Science and Technology Park, No. 5018
    Hutai Road, Gucun Town, Baoshan District, Shanghai

  • GET IN TOUCH：+86-189-1625-1113

  • E-mail：shlonglv@163.com

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