PTX300 | Subsea control module sensors


Product Overview
  • Ranges from 70 to 1035 bar
  • External/ambient pressure up to 300 bar
  • Better than 0.1% accuracy
  • High reliability and excellent long term stability
  • All Electron Beam welded construction
  • Reverse Polarity Protected
  • Sensors are marked with both ‘CE’ and ‘ROHS 50 Years’ for the China Market.
Pressure measurement

Operating pressure ranges
A full scale (FS) pressure range may be specified between 0 - 228 bar and 0 - 1035 bar, sealed gauge (See ordering information for available ranges).

Proof pressure
Proof pressure tested to 1.5 x FS pressure

The operating pressure range can be exceeded by 1.5 x FS pressure to 1600 bar max, whichever is less. 

Secondary containment pressure
The transmitter will safely contain up to 1150 bar maximum without leakage of pressure media.

External case pressure
Tested to 300 bar with negligible change in calibration.

Pressure media
Fluids compatible with a fully welded assembly of Inconel 625 and Stainless Steel.

Transmitter Supply Voltage
10 to 32 VDC. The minimum supply voltage that must appear across the transmitter terminals is 10 VDC. and is calculated by: VMIN = VSUP - (0.02 x RLOOP)

Supply sensitivity
<0.005% F.S./Volt.

Insulation resistance
>100M Ohm @ 500 Vdc

Output current
4 to 20mA (2-wire) proportional for zero to full scale pressure


Combined Non-linearity, Hysteresis and Repeatability:
±0.1% F.S. B.S.L.

Zero off set and span setting
±1% F.S. nominal at 23°C.

Long term stability
At standard reference conditions, any calibration change will not exceed 0.1% F.S. per annum.

Temperature range
Process/ambient -20 to 40°C
Compensated -20 to 40°C Storage -30 to 50°C

Temperature effects
±0.5% F.S. Total Error Band.


Pressure connection
Face or Spigot with O-ring seal connection.

Electrical connection
Flying lead 3m long with striped ends, prepared by tinning and soldering. Cable type Raychem FLHTC0311-0.35

Approx 270 grams nominal.

Ingress protection
IP68, submersible to 3000m H2O.


Datasheets - PTX 300 series

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