Headquartered in Wrexham, Wales, ESI Technology Ltd designs and manufactures pressure transducers and transmitters, serving a multitude of industries including aerospace, defence, oil & gas, subsea, medical, automotive, marine, process and general industrial markets. All our pressure transmitters are manufactured in-house and by hand, ensuring the utmost quality and care goes into the build of every single unit in production.
Take a look at some of ESI’s most notable Product innovations…
Silicon-On-Sapphire (SOS) Sensor Technology
Incorporated throughout the ESI range, SOS combines Silicon and Sapphire to create a very durable and reliable sensor. Because the silicon is grown onto the surface of the sapphire it is incredibly stable and exhibits virtually no hysteresis. With outstanding insulating properties, the sapphire protects the strain gauge from electromagnetic pulse radiation, and allows the sensor to operate over a very wide temperature range without loss of performance.
Advantages of SOS
- Titanium pressure diaphragm is welded to titanium threaded pressure port; no o-ring seals
- High overpressure endurance
- High accuracy and repeatability
- High resistance to over-pressure and pressure transients
- Excellent chemical and corrosion resistance
- Stable at elevated temperatures
- High sensitivity 10mV/V to 20mV/V
- Pressures from -1 bar to 5000bar
- High pressure HP range is machined from single Titanium piece
Digital Pressure Measurement
ESI has a growing range of digital pressure measurement solutions suitable for most applications industrial, test and high temperature environments;
The Products
The GD4200-USB Dynamic Digital pressure transducer
- Pressure Ranges from vacuum to 5,000 bar
- Silicon-on-Sapphire sensor technology
- Sample rate software selection up to 1,000 Hz
- Accuracy (NLHR) +15% of span BFSL
- ESI-USB Software
- Hydrogen compatible option
- Support for easy integration with applications created by C#, VB, Labview and Excel VBA (api dll library)
The HI6000 High temperature pressure transmitter
- Pressure Ranges to 1500 bar
- 150°C ambient temperature
- Silicon-on-Sapphire sensor technology
- Digital temperature compensation
The RS-485 pressure transducer series
Developed due to an increase in demand from our clients, the RS-485 series offers pressure measurement solutions through digital, high accuracy communication. The range features a general purpose, high pressure and subsea variant.
- General industrial (GS4400), high pressure (HP1400), and subsea (PR3930) variation
- Pressure Ranges to 5000 bar
- Selectable baud rate
- 1200m communication distance
- Resistant to noise interference
Applications for ESIs Digital range include;
- AUV/ROVs
- Hydraulic systems monitoring
- Test and Laboratory environments
- Oil, Gas and other Process liquids
- Industrial environments
- Medical and Laboratory testing
- Aerospace
- Refrigeration, pneumatic, compressor, HVAC and engine monitoring systems.
Hydrogen Compatible Pressure Measurement
One of ESIs most recent range of pressure measurement solutions, the H2 range is compatible with Hydrogen based environments, and is available in a general industrial (GS4200H), high pressure (HP1000H) and high accuracy (HI2000H) variant, as well as a digital transducer (GD4200HUSB), available with a combination of ATEX and DNV-GL certification on selected models.
What is Hydrogen Compatibility?
Samples of the materials used in the manufacture of the range were tested based on ISO 11114-2:2017 in accordance to the European Regulations EC 79/2009 and EU 406/2010 to determine an “embrittlement index” of the material when placed in a saturated environment over extended periods of time. Results have provided a pass rating to the compatibility of the material against Hydrogen.
The Material
The pressure diaphragm and threaded pressure port are machined from a specialist Titanium alloy specifically designed to withstand harsh and demanding environments. This, along with the non-oil-filled sensor and high integrity stainless steel housing results in a robust and versatile unit that offers excellent media compatibility across a range of environments.
The Hydrogen range also benefits from the same Silicon on Sapphire (SOS) sensor technology used throughout the ESI brand, providing outstanding performance, stability and highly accurate pressure measurement.
The Products
The GS4200H Industrial pressure transmitter series
- Pressure Ranges to 1,500 bar
- Excellent corrosion resistance
- Provides high stability performance at low cost
- Silicon-on-Sapphire sensor technology
- High resistance to overpressure
The HP1000H High pressure transmitter series
- Pressure Ranges to 5,000 bar
- Machined using a single piece of special high strength Titanium alloy
- Silicon-on-Sapphire sensor technology
- High resistance to overpressure and pressure transients
The HI2000H Hispec pressure transducer series
- Pressure Ranges to 1,500 bar
- High accuracy and performance
- Specialist titanium alloy sensor for excellent chemical compatibility
- High thermal stability over wide operating temperature
- TEDS Version available
The GD4200HUSB Dynamic Digital pressure transducer series
- Pressure Ranges from vacuum to 5,000 bar
- Silicon-on-Sapphire sensor technology
- Up to 16 pressure output readings
- Accuracy (NLHR) +15% of span BFSL
- ESI-USB Software
- Customised test reports and certificates
Applications for ESIs H2 range include;
- Hydrogen storage
- Hydrogen production
- Hydrogen re-fuelling
- Hydrogen engines
- Marine propulsion
- Hydrogen fuel cells
- Laboratory environments
- Industrial applications
For more information on ESIs expansive product range please visit our website www.esi-tec.com
