Aluminum Oxide Dewpoint Transmitter

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Aluminum Oxide Dewpoint Transmitter Application Note - Glove Boxes
Application: Glove Boxes
Glove boxes or isolation chambers provide a controlled and pure environment for a wide variety of applications. Inert gases are used in a glove box to blanket the containment in a neutral background environment. Examples of glove box applications include carrying out reactions with delicate or hazardous materials, sensitive micro-assembly of electronic devices, high purity welding, lithium battery manufacture, pharmaceutical manufacture, and semiconductor lithography. Typical blanketing gases are nitrogen, helium, and argon.

To ensure the blanketing gas has properly purged the environment, moisture sensors are installed within glove box environment, on the purge gas exhaust or in the supply side stream.

Why Dewpoint Measurement is desired/required:
The presence of moisture in the blanketing gas for a glove box or isolation chamber can cause serious contamination problems. For example, moisture or oxygen may change yields, enable side reactions with reactants or products, or affect the end product’s surface finish or structural integrity.

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Edgetech Instruments
Edgetech Instruments, Inc. is a global leader in the design and manufacture of chilled mirror dew/frost point hygrometers and other moisture and oxygen measurement devices. The company manufactures absolute and relative humidity hygrometers as well as oxygen concentration analyzers. In 2015 Edgetech Instruments achieved ISO 9001 registration certification and in 2016 the company became ISO/IEC 17025 accredited. Edgetech hygrometers are made and supported in the USA. All calibrations and certifications are traceable to NIST.

Edgetech Instrument’s products include trace moisture analyzers and instrumentation, wireless and hand held portable hygrometers, absolute and relative humidity transmitters, aircraft hygrometers, humidity and temperature test chambers and instrumentation for engine test cells. Equipment can be purchased or rented.