HUDSON, Mass. — The battery portable, fast-responding, PPM2 hygrometer from Edgetech Instruments uses a fundamental principle and a diffusion barrier to measure trace water vapor in gases from 0.1-1,250 ppmv. Recalibration is not required under normal usage.
The PPM2 is a trace moisture analyzer for monitoring dew/frost point temperature or ppmv water vapor content in gases. It is configured to meet remote, spot sampling, or semi-permanent absolute humidity measurement requirements. Detectible range is from 0.1-1,250 ppmv water vapor. The PPM2 is ideally used for relatively clean, dry, inert gas measurement. Applications include air separation and purified gases, medical and pharmaceutical gases, and semiconductor manufacturing.