Absolute pressure sensor SPT81Au

membranepiezoresistivevoltage output

Features • Gauge, absolute, sealed gauge • Isolated construction, enable to measure various media • $19mm standard OEM pressure sensor • Corrugated diaphragm with gold plated Application • Hydrogen pressure measurement instrument • Hydrogen production and purification equipment • Hydrogen storage and transportation equipment Introduction SPT8 IAu gold plated pressure sensor is a measuring element specially developed for hydrogen measurement applications. The sensor is flat membrane structure and adopts gold plating techniques on the membrane to effectively prevent "hydrogen embrittlement" and "hydrogen penetration•. It improves the working life of the sensor as well as ensure the site safety. SPT81Au pressure sensor selects the high-precision and high stability diffusion silicon piezoresistive pressure sensitive chip produced by famous international manufacturer. The pressure sensitive component is automatically tested by computer and fabricated with zero point correction and temperature compensation. With high accuracy and good stability, it can be widely used in various hydrogen pressure measurement applications. Electric Specification • Power supply:≤2.0mADC • Electric connection: 0.5mm gold-plated Kovar pin or 100mm flexible silicone rubber wires • Common mode voltage output: 50% input (typ.) • Input impedance: 3kΩ—8kΩ • Output impedance: 3kΩ—6kΩ • Response <1ms • Insulation resistor: 100MΩ@100VDC • Overload: 2 times FS