ESI Technology Ltd

ESI Technology Ltd designs and manufactures pressure transducers and transmitters for the aerospace, defence, oil & gas, subsea, medical, automotive, marine, process and general industrial markets. Our customer base extends worldwide, exporting 75% of our sales to more than 45 countries.

Formed in 1984, ESI has grown into a worldwide supplier of “in house” manufactured pressure transducer and transmitters. Early success came from designing solutions for challenging military and aerospace applications. More recently, the outstanding quality and performance of our Silicon-on-Sapphire sensing technology, has ensured our position as one of the market leaders in the pressure measurement industry. Our comprehensive range of pressure transmitters and transducers incorporate this technology, together with the latest digital signal processing. All products are rigorously tested to ISO9001 and Mil-I-45208 procedures and conform to CE requirements. EX, IECEx and DNV GL certification is also available.

Pressure Measurement at High Temperatures
Accurate pressure measurement in high temperature environments can be a challenge. Standard pressure transmitters simply cannot function in extreme temperatures, mainly due to the internal components which have a low tolerance to heat. Sometimes adapters such as coiling coils or stand-off piping can be used, but are not always convenient in applications with limited space.
With this in mind, the compact HI6000 series has been carefully designed with components, including a silicon-on-sapphire sensor, to make accurate measurements at high temperatures. It performs at constant media and ambient temperatures of up to 135°C without loss of performance and for limited periods up to 150°C. Thermal compensation from -25°C to +135°C guarantees stable signal output at all times.

The silicon-on sapphire sensor can operate at very high temperatures with high accuracy and stability and without loss of performance. The silicon is grown onto the surface of the sapphire, which protects the silicon strain gauge because of its’ outstanding insulation properties. The result is an incredibly stable sensor that is unbeatable at elevated temperatures. Together with carefully selected electronics, and expert engineering, the result is our most flexible high temperature product yet.

The HI6000 series is available in several signal outputs including voltage and current, pressure ranges up to 1500 bar and features all welded titanium wetted parts offering excellent chemical compatibility. With a high accuracy option of 0.1% NLHR it is perfect for applications in aviation, oil & gas, automotive and industrial process.

For more information contact our sales department [email protected] or +44 (0)1978 262 255

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