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    Intrinsically Safe Pressure Sensor | ATEX Certified | P642FAX

    Accurate, Extremely Robust and ATEX Certified for Hazardous Areas
    P642FAX ATEX Intrinsically Safe Pressure Sensor
    Lead Time
    6 weeks
    Prices From
    (excl. VAT)
    Accelerated delivery available
    Quantity, OEM & educational discounts

    At a Glance

    • Ranges: 0-0.5bar up to 0-5000bar
    • Outputs: 4-20mA
    • ATEX Certified:
      • Ex II 1 G Ex ia IIC T4 Ga (zone 0)
      • Ex II 1 D Ex ia IIIC T135 °C Da (zone 20)
      • Ex I M 1 Ex ia I Ma (group 1 M1)
    • Environmental Protection: IP65
    • Accuracy: <±0.25%/FS
    • Designed for Hazardous Environments & Explosive Atmospheres
    • Titanium Alloy Construction Offers Excellent Long-Term Performance
    • ATEX/IECEx Versions Available for Explosion Protection (zone 0), dusts (zone 20)
    • ATEX/IECEx Available for Mining Areas (group I M1)


    The P642FAX ATEX Certified, Intrinsically Safe pressure sensor is designed for use in hazardous areas across all common industrial applications.

    We can supply versions suitable for explosion protection for flammable gases (zone 0), dusts (zone 20), and mining areas (group I M1).

    The P642FAX intrinsically safe pressure sensor has a Titanium media connection offering compatibility with a wide range of harsh and aggressive pressure media.

    The pressure sensor’s electrical output is the intrinsically safe standard 4-20mA, 2-wire signal, connection to which is made via a DIN43650 plus & socket.  Pressure connection is made via a G¼” male on pressure ranges up to 1500bar, while a high-pressure F-250-C Autoclave fitting is supplied thereafter.

    If you require your intrinsically safe pressure sensor to be supplied with suitable barriers please contact us with the details of your requirement and we will be pleased to source and supply them.

    Technical Specifications

    Input Pressure Range
    Nominal Pressure Range
    Bar (gauge)
    Permissible Overpressure
    0.5x 4
    1x 2
    1.6x 2
    2.5x 2
    4x 2
    6x 2
    10x 2
    16x 2
    25x 2
    40x 2
    60x 2
    100x 2
    160x 2
    250x 2
    400x 2
    600x 1.5
    700x 1.5
    1000x 1.5
    1500x 1.5
    2000x 1.5
    3000x 1.5
    4000x 1.25
    5000x 1
    Output Signal & Supply VoltageNumber of WiresOutputSupply Voltage
    P642FAX2 – wire4 - 20mA13 - 28 Vdc
    Accuracy (non-linearity, hysteresis, repeatability)% Full Scale Output<±0.25 (BFSL)
    Zero Offset and Span Tolerance% / Span±1 (at room temperature)
    Zero Offset and Span Adjustment% / Full Scale Output±5 with easy access trimming potentiometers
    Media Temperature˚C-50 to +125
    Ambient Temperature˚C-20 to +70
    Storage Temperature˚C+5 to +40
    Thermal Zero Shift (TZS)% / Full Scale / ˚C<±0.02 typ.
    Thermal Span Shift (TSS)% / Full Scale / ˚C<±0.02 typ.
    Reverse Polarity ProtectionProtected against supply voltage reversal up to 50Vdc
    Media CompatibilityAny media compatible with BT9 Titanium Alloy
    WeightGrams90 nominal
    Insulation ResistanceMegohm @ 50 Vdc>100
    Electrical ConnectionMating socket with screw terminal connections to DIN 43650. Cable entry PG9.
    Pressure Connection1/4” BSP or 1/4” NPT male (others available on request)
    Response Time (10% - 90%)ms≤1
    Environmental ProtectionIP65
    Load Driving Capability4 - 20mAsupply voltage - 10V / 0.02A (i.e. 36V - 10V / 0.02A = 1300Ω
    Long Term Stability% / Full Scale<0.2 / 6 months
    Operational LifePressure Cycles>108 typical
    ATEX Approvalzone 0Ex II 1 G Ex ia IIC T4 Ga (zone 0)
    zone 20Ex II 1 D Ex ia IIIC T135 °C Da (zone 20)
    M1 miningEx I M 1 Ex ia I Ma (group 1 M1)

    Product Dimensions

    ATEX logo
    P642FAX ATEX Intrinsically Safe Pressure Sensor Outline Drawing 0-2000bar to 0-5000bar
    P642FAX ATEX Intrinsically Safe Pressure Sensor Outline Drawing 0-2000bar to 0-5000bar
    P642FAX ATEX Intrinsically Safe Pressure Sensor Outline Drawing 0-0.5bar to 0-1'500bar
    P642FAX ATEX Intrinsically Safe Pressure Sensor Outline Drawing 0-0.5bar to 0-1’500bar

    Wiring Details

    Pin No.2 Wire (4 - 20mA)
    1+ve supply
    24 - 20mA signal
    3not fitted
    to case

    P642FAX Ordering Codes & Options

    Product Family
    Electrical Output
    42 = 4-20mA (2 wire)42
    Electrical Connection / ATEX Certification
    X = ATEX + Large DIN Plug & Socket (standard)X
    CX = ATEX + IP67 Cable (1 metre fitted as standard)CX
    Pressure Range
    10barg = 0 to 10bar gauge-10barg
    M1P1barg = -1 to +1bar gauge-M1P1barg
    P15P500psia = +15 to +500psi absolute-P15P500psia
    2400psig = 0 to 2400psi gauge-2400psig
    Accuracy (Non-Linearity & Hysteresis)
    A = <±0.25%/FS (standard)-A
    B = <±0.15%/FS-B
    Process Connection
    A = G1/4” Male (<0-1500bar standard)A
    B = F-250C Autoclave (9/16” UNF Female) (0-2000 to 0-5000 standard)B
    D = M16 x 1.5 Female Cone Seal (optional 0-2000 to 0-5000 only)D
    Cable Length in Metres
    00 = None-00
    01 = 1 metre-01
    Specials Code
    000 = No Special Requirements-000

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