Druck Hydrogen Compatible Pressure Sensors For Harsh Environments

The high-performance barrier coating and carefully selected substrate material used in the isolation diaphragm for the UNIK5000H and the RPS/DPS8000H minimizes the impact of hydrogen permeation and extends the life of the pressure sensor, offering longer term stability and use in harsh applications.

The UNIK5000H is a hydrogen compatible pressure sensor that has been design based on the successful UNIK5000 industrial, configurable sensing platform. With pressure ranges from 700 mbar (10.2 psi) to 700 bar (10,000 psi), the UNIK5000H pressure sensor is ideal for test, networks and filling station applications. 

The stainless steel 316L construction of the UNIK5000H provides excellent resistance to hydrogen embrittlement. Permeation can affect the performance of all sensor technologies and the UNIK5000H uses an optimized barrier coating that limits hydrogen permeation and is unaffected by the presence of impurities.

Features:

• Ranges from 700 mbar (10.2 psi) to 700 bar (10000 psi)
• Accuracy to ±0.04% Full Scale (FS) Best Straight Line (BSL)
• Stainless steel construction • Hydrogen compatible wetted materials
• Frequency response to 3.5 kHz
• High over pressure capability • Hazardous area certifications
• mV, mA, voltage and configurable voltage outputs
• Multiple electrical and pressure connector options
• Operating temperature ranges from –55 to +125°C (-67 to +257°F)
• Meets the requirements of EC134 compliant systems

The RPS/DPS8000H combines ground-breaking TERPS technology and a hydrogen barrier coating to create the most accurate and stable hydrogen capable pressure sensor on the market today. TERPS is a resonant silicon pressure sensor technology platform that provides an order of magnitude greater accuracy and stability than current pressure measurement technologies. TERPS technology also extends the pressure range capability to high pressures and, by incorporating true pressure media isolation, greatly improves its suitability for use in harsh environments.

Features:

• High Precision, ±0.01% FS over compensated temperature range
• High Stability, ±100 ppm FS/year
• Wide temperature range, up to -40°C to +125°C (-40° to 257°F)
• Media isolated construction, suitable for use in harsh environments
• Suitable for use in hydrogen rich media
• Multiple Output configurations, RS-232, RS-485, USB 2.0, CAN Bus, Frequency & Diode (TTL)
• Wide selection of pressure & electrical connections to suit specific requirements