Protran PR3914®

Subsea Pressure Transmitter• Suitable for ROV and deep sea
test equipment• Silicon-on-Sapphire sensor technology
for outstanding performance• Submersion to 6,000 mtrs depth• Pressure ranges available to 2,000 bar• High accuracy option• Optional temperature output• Hyperbaric testing and Environmental
Stress Screening (ESS Testing)Vers. 20/1/Eng

Protran ® PR3914 Subsea Pressure Transmitter
Technical Data
Description
The PR3914 subsea pressure transmitter has been
designed to meet the demanding requirements
of pressure measurement at deep levels ofimmersion especially in oil industry applications.
It can be configured to suit a multitude ofapplications
The unique Silicon-on-Sapphire sensor technology provides
outstanding performance and gives excellent stability overa wide temperature range. The advanced sensor design
consists of a piezoresistive silicon strain gauge circuit, which isepitaxially grown onto the surface of a sapphire diaphragm toform a single crystalline structure.The sapphire sensor element
is then molecularly bonded to a titanium alloy sub-diaphragm.
This enables the sensor to endure higher over-pressures andprovides superb corrosion resistance. The sensor exhibits
virtually no hysteresis and excellent long-term stability. With
outstanding insulation properties, the sapphire substrate allows
the sensor to operate over a very wide temperature range

without loss of performance.
Housed in fully welded body with wetted parts conforming to
the NACE recommendation for material corrosion resistance,
this product will provide a durable solution for long-term
accurate pressure measurement even when permanently
situated in extreme depth sub-sea environments. Multiple
optional connections are available... Providing a two wire
output signal of 4-20 mA with high stability and repeatability
for pressure ranges up to 2,000 bar. Intended for permanent
immersion the product can withstand external pressures of up
to 6,000 metres depth water. Secondary provides secondarypressure containment up to 1,650 bar. Units can be suppliedwith hyperbaric test certificates to 3,000 metres water
submersion. Electrical connection is via strong PTFE Raychem
Flexlite leads. Pressure ranges available from 0-200 bar to0-1,000bar.

o30

Dimensions

MCBH3-M-SS
SubConn
ELECTRICALCONNECTOR(in mm)~16025 A/FHEX.
G1/4 FEMALE

Protran ® PR3914 Subsea Pressure Transmitter
Technical DataType:
Sensor Technology:

PR3914
Silicon-on-Sapphire (SoS)

Output Signal:

4 – 20 mA (2 wire)

Supply Voltage:

10 – 36 VDC

Pressure Reference:

Sealed gauge

Protection of Supply Voltage:

Protected against supply voltage reversal up to 50 V

Standard Pressure Ranges:

Typical ranges from 0-10 bar to 0-2,000 bar. Contact the sales office for further information.

Overpressure Safety:
Load Driving Capability:
Accuracy NLHR:
Zero Offset and Span Tolerance:

Contact the sales office for further information.
4 – 20 mA: RL < [UB - 10 V] / 20 mA (e.g. with supply voltage (UB) of 36V, max. load (RL) is 1300 Ω)≤ ±0.25 % of span BFSL
±0.10mA

Operating Ambient
Temperature:-20°C to +40°C (-4 °F to +104 °F)

Operating Media Temperature:-20°C to +40°C (-4 °F to +104 °F)

Storage Temperature:+5 °C to +40 °C (+41 °F to +104°F) Recommended Best PracticeTemperature Effects:±0.015%fs total error band for -20° to +40°C; Typical thermal zero and span coefficients ±0.005%FS/°C.

Ingress Protection:

Fully welded housing. Rated IP68 when correctly installed to conduit connection.

Electromagnetic Compatibility:

Emissions: EN61000-6-4; Immunity: EN61000-6-2; Certification: CE Marked

Insulation Resistance:> 100 MΩ @ 50 VDC

Response time 10-90 %:1 mS

Wetted Parts:

SAE 316 stainless steel housing with titanium alloy measurement cell (other materials on request)

Pressure Media:

All fluids compatible with SAE 316 stainless steel and titanium alloy

Pressure Connection:

Many specialised pressure connection options available to suit individual requirements. Contact the sales team for moreinformation.

Electrical Connection:

Cable outlet or Subsea connector options available

Related product

PT100 temperature transducer PR3919 also available. Contact Sales for details

Net. Weight (Kg):

Subject to specification

DISCLAIMER : ESI Technology Ltd operates a policy of continuous product development. We reserve the right to change specification without
prior notice.All products manufactured by ESI Technology Ltd are calibrated using precision calibration equipment, traceable to national
measurement standards.