Michell Instruments has released the QMA401 low-maintenance Trace Moisture Analyser, available via AMS Instrumentation & Calibration.
Maintaining the quartz crystal oscillator-based analyser is simple, infrequent, and inexpensive, according to the company.
No service is required for at least two years, at which point the desiccant dryer could need replacement – a process that can be carried out by the user in less than 10 minutes.
It’s straightforward to replace the internal moisture generator in the field with a freshly calibrated NPL or NIST traceable reference unit from the factory, which will last for a full three years of operation.
The newly designed quartz crystal technology-based hygrometer features an improved touch-screen interface. The menu system is intuitive, following the structure known from Michell’s premium range of chilled mirror hygrometers.
Operators and service engineers will be able to switch easily between the S8000 chilled mirror range and the QMA401. The case of the QMA401 has also been redesigned with a modern, easy-clean surface, which is similar in look and feel to the S8000 precision hygrometers.
Using the new generation of quartz crystal microbalance (QCM) sensor, the QMA401 precision hygrometer provides consistently accurate measurements of trace moisture. This is achieved through an automatic self-calibration system which adjusts the analyser against an internal moisture generator (traceable to NPL and NIST).
