Profile: Ametek Process Instruments is a manufacturer of process analyzers and instrumentation. We offer residual gas analyzers, process mass spectrometers, manual & on-line chilled-mirror dew point analyzers, gas chromatographs, gas gravitometers and liquid densitometers. We are accredited with ISO 9001:2000 certification. Our clean gas oxygen analyzers are a series of zirconia-based analyzers for measuring the oxygen concentration of gas mixtures and blanket gases. Our products are used in a wide range of industrial applications.