Self-Calibrating Trace Moisture Analyzer - Michell QMA401

Low Maintenance Quartz Microbalance Technology

Key features

  • Precision measurement from 0.1 to 2000ppmV
  • Fast response in both dry to wet and wet to dry transitions
  • Simple, low cost, on-site maintenance with long service intervals
  • Dryer can be replaced by the user in 10 minutes
  • Accuracy of 0.1ppmV or 10% of reading, whichever is greater
  • Intuitive user interface
  • Ethernet or USB digital communications
  • SD card data logging
  • Optional internal sample handling and bypass loop


The next generation Advanced Quartz Crystal Microbalance analyzer from Michell Instruments is designed to provide reliable, fast and accurate measurement of trace moisture content in a variety of applications where keeping moisture to a minimum is of critical importance.

The analyzer provides consistently accurate measurements of trace moisture. This consistency is achieved using a self-calibration system, which adjusts the sensor with reference to an internal moisture generator. The moisture generator is supplied with a calibration traceable to NPL and NIST, so long term stability of its measurements is guaranteed.

Suitable for use with natural gas containing up to 20% hydrogen with no further modification required.


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