Hygrometers Articles

  • Safety vs. Environment Protection: Study Discovers Increasing Salt Levels in Lakes

    A recent study published by the US-American National Academy of Sciences revealed an increasing salt amount in form of chloride in rural and urban freshwater lakes around the American continent. The scientists believe, that mainly road salt distributed on icy roadways is to blame. Increasing salt levels threaten eco systems Road de-icing salt is blamed for rising salt levels in ...

  • Do you know our new sensor for traffic management applications yet?

    After a year of development work, the new Lufft stationary road weather sensor StaRWIS (Stationary Road Weather Information Sensor) is now market-ready. It can be mounted at measuring distances of 5 to 6 meters above the road and is based on the award-winning LED technology we already used for the mobile road weather sensor ...

  • The Fatal Flaw in Dew Point Measurement for Injection Molding

    Dew-point measurement is a common and important metric in the plastic drying process. A good dew point meter can tell you whether your dryer is working normally or if it’s in need of repair. Dew point meters do this by measuring the humidity in the air that flows through the dryer. What dew point meters won’t tell you anything about, however, is how much moisture is actually present ...


    By Arizona Instrument LLC

  • Drying plastic resin pellets in injection- Molding & Extrusion processes case study

    Application Moisture concentrations are measured in the dry purge air used to remove moisture from a hopper containing plastic resin pellets used in injection-molding and extrusion processes. Problem Moisture contaminates the plastic resin pellets causing several quality problems in the finished plastic products. Moisture causes clear ...

  • Field verification of on-line hydrocarbon dew point measurements

    Introduction The Michell Condumax II applies a fundamental measurement principle for direct measurement of hydrocarbon dew point. Measurement performance is assured through comprehensive factory test and calibration, to verify that each analyzer offers accurate determination of the temperature at which hydrocarbon condensate forms. Further extensive examination confirms highly sensitive ...


  • Evaluation of MCM hygrometer and validation system during - Case Study

    Evaluation of an MCM moisture analyser and validation system during start up of Platformer 4 at Shell Bukom, April 2005. Overview Platformer start up requires an accurate knowledge of moisture levels in order too prevent over cracking, help optimise yields and prevent early catalyst damage. The presence of chloride and other contaminants during start up often affect the water ...

  • Basic tests for checking validity of field data

    The following guidelines are suggested for verifying micrometeorological data gathered in field experiments. It is assumed, for simplicity, that the observations being tested are made over open, relatively flat and uniform terrain, with small roughness elements. It is also assumed that the sensors and the data acquisition and recording hardware are basically sound and that the purpose of the ...

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