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
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At a Glance

  • Ranges: 0-0.5bar up to 0-5000bar
  • Outputs: 4-20mA
  • ATEX Certified:
    • II 1GD EEx ia IIC T4
    • Ex iaD 20 T200ºC
    • Ta = -20ºC to +70ºC
    • Intrinsically Safe
  • Environmental Protection: IP65
  • Accuracy: <±0.25%/FS
  • Designed for Hazardous Environments & Explosive Atmospheres
  • Titanium Alloy Construction Offers Excellent Long-Term Performance
  • Protected from Low-Pressure Water Jets to Suit Most Industrial Environments
  • Suitable Intrinsically Safe Barriers Available


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

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 ApprovalEx 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 I 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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