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High Precision Differential Pressure Transmitter

QYB401 monocrystalline silicon differential pressure transmitter adopts a monocrystalline silicon sensor chipmade of Germany's advanced MEMS technology. it has a double-diaphragm structure and combines with exquisite production technology to achieve high accuracy and ultra-high stability of the product. The built-in intelli.gent signal processing, module realizes the perfect combination of pressure and temperature compensation.providing reliable measurement accuracy and excellent long-term stability under a wide range of static pressure and temperature changes.

    Features:

    • High-precision grade, German high-precision monocrystalline silicon sensor chip, accuracy < ±0.05%
    • Strong, load resistance, double overload protection diaphragm design, single overvoltage up to 42MPa
    • Intelligent static pressure compensation and temperature compensation eliminate the influence oftemperature, static pressure and overload on the transmitter, minimizing the comprehensive test error on site.
    • Stability can be maintained at 0.1FS96/10 years, Flexible remote assistance debugging function
    • Remote and local parameter setting function configuration can be realized through Hart or Rs485 communication and panel buttons.
    • Suitable for petroleum/chemical/fossil industry, matched with throttling device to provide accurate flow measurement of pressure and liquid level in pipelines and storage tanks.
    • Electricity/city gas, places requiring high stability and precision in pressure, flow, liquid level measurement,etc.
    • Pulp/paper industry, etc, used in furnace pressure, negative pressure measurement and other places thatrequire high stability and high precision measurement.
    • Mechanical equipment/shipbuilding, used to strictly control pressure, flow, liquid level, etc.

    Specification:

    Measuring Medium

    Measuring the pressure of liquids, gases or vapors

    Measurement Type

    Differential pressure measurement,absolute pressure measurement

    Output

    4-20mA+HART/RS485

     

     

    Range

    (0-0.6)KPa-6KPa/TD:10:1

    (0-2)KPa~40KPa/TD:10:1

    (0-2.5)KPa~250KPa/TD:10:1

    (0-10)KPa-1MPa/TD:10:1

    (0-30)KPa-1MPa/TD:10:1

    Accuracy

    士0.05%F.S/+0.075%FS/+0.196F.S

    IfTD>10 (TD=maximum range/adjustment range)

    士(0.005*TD)96/士(0.0075*TD)%/士(0.01*TD)%

    Ambient Temperature Effect

    The total influence at (-25-+65)'Cis +(0.15*TD+0.05)96"Span

    Overvoltage Effects

    Thetotal inluenceat-40--25“cand465+85)'Cis+(02*TD+00596'Span

    long Term Stability

    士0.075%"Span

    Power Supply lmpact

    +0.196'Span/10year

    Insulaton Resistance

    0.00196/10V(12-36)V DcNegligible

    Dielectric Strength

    More than 100Mo to pround (pc500V)AC 500V50/60Hz to ground.l minute

    Ambient Temperature

    -40~+85'C -20~+65'C(With display)

    Alarm Current Goes Ofline

    3.6mA

    Alarm Current Goes Online

    2lmA

    Process Temperature

    -40-125C

    Storage Temperature

    -40-+85'C -20-+65'C(With display)

    lsolation Diaphragm

    SS316L/HastelloyC-276/Tantalum/Overgild

    Process Connection Material

    S5304/SS316L

    Nuts And Bolts

    SS(A2-70)/Galvanized carbon steel(12.8)

    Pressure Transmitter Housing

    Aluminum alloy material, surface sprayed with epoxy

    Sealing Ring

    resin/Stainless Steel materials

    Housing Seal

    Nitrile rubber (NBR, fuorine rubber (FkM,,polytetrafuoroethene (PTFE)

    Filler

    Nitrile rubber

    Electrical Connections

    Silicone oil, edible oil, FL oil

    Thread

    M20"15 cable sealingbudke, temminal blocksuitablefor(0.5-25mm’ wires

    Protection Level

    NPT1/2F NPT12M G12M M20*1.5F

    Weight

    IP65,1P67 (explosion-proof type)