Tinius Olsen

Hydrotracer Moisture Analyzer

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This new moisture analyzer is less expensive, just as swift to generate a result and as accurate as comparable heat and weigh or microwave technique-based testers. The patented method of the HydroTracer determines the absolute water content where the mass of the water is measured within the reactor.
 
The sample is weighed and filled into the HydroTracer’s sample tray, which is then placed in the tester’s heating chamber. The heater warms the sample to a temperature chosen by the operator and water within the sample evaporates. The heating chamber is connected with the cooled upper reactor chamber of the HydroTracer – this is where the calcium hydride reagent is placed. The volatile water rises to the upper reactor chamber and, when the humid air flows over the reagent, the gaseous water reacts with calcium hydride.
 
The cooled, dry air returns to the lower heating chamber and the process continues. The circulation of air through the HydroTracer is supported by natural convection, which is promoted by the unique design of the HydroTracer; even hygroscopic materials are completely dried with the analyzer. The final concentration of hydrogen in the reactor is proportional to the water content of the sample before the measurement. The whole operation process is controlled by PC-based software and the results calculated for the operator.

Principle of Operation

1. Sample in removable heating tray
2. Hot humid gas rises into the reactor chamber
3. Reagent absorbs water vapour and releases hydrogen gas
4. Sensors measure the concentration of hydrogen gas
5. Cooled, dry gas descends and can absorb more water vapour

Common Applications

  • Plastics – ABS, PA 6, PA 6.6, PA 12, PAA, PAI, PBT, PC, PE, PE Talcum, PEI, PETa, PETc, PMMA, POM, PP, PS, PS expanded, PVC, TPE
  • Anorganic salts
  • Calcium carbonate
  • Caprolactam
  • Sand
  • Carbon black
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