Our Converter App

The ESI Pressure converter allows you to quickly and easily access a conversion tool to work out your preferred unit of pressure measurement wherever you may be. Whether out on-site or in the office.

ESI logo in white

Download the ESI-USB© Software

The ESI-USB© software allows you to connect your ESI transducer to your laptop or PC and be up and running monitoring pressure data within ten minutes. The software auto-updates and is compatible with Windows 8, 10 & 11.


Flush Diaphragm Pressure Transmitter

  • Easy clean flush membrane to prevent clogging
  • Thick film sensor technology for long service life
  • Pressure ranges to 400 bar
  • Integral O-ring seal to ensure flush pressure seal
  • ATEX/IECEx option available (includes M1 for mining applications)


The PR3850 pressure transmitter meets the requirements of the majority of industrial pressure measurement applications where a hygienic flush diaphragm connection is required. Robustly constructed from stainless steel, this range of pressure transmitters incorporates the latest strain gauge technology together with a custom IC amplifier offering excellent stability and accuracy over a long service life.

This transmitter is particularly suitable for use with high viscosity materials. The flush membrane can be easily cleaned for long term reliability and outstanding performance.

Electrical connection is via a detachable DIN connector allowing easy access to zero and span adjustment. Optional weldable boss is available to ensure flush-face installation of transmitter to tanks and pipe-work.

Standard pressure ranges:

0-100 mbar; 0 – 4 bar; 0 – 10 bar; 0 – 25 bar; 0 – 100 bar; 0 – 250 bar; 0 – 400 bar (other options available)

Typical applications include:

  • Food processing
  • Pharmaceutical industries
  • Petrochemical environments
  • Waste water and slurry handling

Technical Specifications

Electrical Connections

mA Vdc Vdc
Pin no. 2 wire 3 wire 4 wire
1 +supply -supply common
2 4-20 mA signal +supply +supply
3 N/C +output +output
to case to case

Get a quote..

For more information or to request a quote contact our sales team