Gaskleen® Pico1000 Analyzer

The Gaskleen Pico1000 analyzer measures trace moisture in nitrogen process gas streams, with a limit of detection of 1 part per billion (ppbv).The system is ideally suited for qualifying and certifying ultra-high purity process gas lines, as well as detecting purifier end-of-life when deployed downstream.Its robust, compact design is readily portable, allowing users to easily move it around a facility for quick checks of process gas quality at many points.The Gaskleen Pico1000 analyzer consumes up to 70% less process gas, compared to competitive analyzers.

Operation

The analyzer uses a microelectromechanical system (MEMS) to gravimetrically measure the moisture concentration.Sample process gas flows through a mass flow controller to the preconcentrator MEMS where the moisture is trapped with a proprietary coating throughout the sample period.When the sampling is complete the preconcentrator heats in milliseconds “flashing” off the collected moisture.

Co-packaged with the preconcentrator is a resonator MEMS vibrating in the MHz frequency range.This resonator is functionalized with another proprietary chemoselective coating to enhance absorption and desorption of the moisture flashed from the preconcentrator.This proprietary design allows the resonator to quickly capture and measure the mass of moisture absorbed on the resonator.

The measurement cycle begins with the resonator vibrating at a specific MHz frequency.When the preconcentrator flashes off the moisture a resonator frequency shift (ΔHz) occurs, which is detected and transformed into an electrical signal that is directly proportional to the mass of the moisture.

Sampling is performed continuously, except during preconcentrator flash and resonator measurement, which only takes a few seconds.The Gaskleen Pico1000 analyzer is a near-real-time analyzer with continuous collection and batch measurement.

特点

  • Sampling times are automatically selected, depending on the moisture concentration in the process gas
  • Detection limits as low as 1 ppbv can be achieved in nitrogen (when sampling for 10 minutes)
  • Incorporates internal diagnostic parameter monitoring and user guided system checks
  • Easy “Plug and Play” installation

优势

  • Light weight design for mobile monitoring applications
  • 20% lower cost of ownership than the competition
  • Fast response time
  • Process gas line leak detection
  • Purifier end of life detection
  • 70% less process gas consumed than CRDS systems