Product category:
Gas analysis equipment
News Release from: Process Analyser Systems | Subject: Series 2200 H2 detector
Edited by the Laboratorytalk Editorial
Team on 18 January 2007
H2 detector monitors areas and detects
leaks
Teledyne's 2200 series relies on the patented wide range hydrogen sensor (WRS) which utilises Pd/Ni thin films to measure hydrogen in low and high ranges
Whether to ensure personnel safety or monitor industrial processes, many industries can benefit from hydrogen detecting technology Reliably monitoring the presence of hydrogen gas is critical wherever it is produced, used, stored or transported
This article was originally published on Laboratorytalk on 18 Jan 2006 at 8.00am (UK)
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Teledyne offers the Series 2200 to detect hydrogen with or without oxygen in concentrations from 15ppm to 100%.
WRS Sensor.
Teledyne's 2200 series relies on the patented wide range hydrogen sensor (WRS) which utilises Pd/Ni thin films to measure hydrogen in low and high ranges.
The low level sensor is a MOS capacitor with a Pd/Ni plate for one side.
The presence of hydrogen changes the electric field causing a proportional change in capacitance.
The high level sensor is a Pd/Ni thin film resistor.
This sensor has a thin film of palladium-nickel deposited on the silicon substrate that changes resistance in the presence of hydrogen.
The 2200 interprets these changes and displays the hydrogen concentration while also generating an analogue signal that can be sent to external monitoring systems.
No other gases or environmental controls are necessary and no oxygen is required for a reading.
The WRS sensor also contains a temperature sensing element and on-board heater, keeping the sensor substrate at a constant temperature.
This elevated, controlled temperature assures sensor operation is unaffected by gas temperature.
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