humimeter RH2 water activity meter

Description

Water activity indicates the amount of unbound water (free water) in a material. It is an important factor in food preservation and quality control – for example for the shelf life of meat or other foods. This quality factor, also known as the aw value, depends on the water vapor pressure in the material, the current temperature, and the water vapor pressure in the environment.

The humimeter RH2 food moisture content meter allows quick and easy measurement of water activity. We offer two different sensors:

• Measuring chamber – Due to the large sample volume, larger quantities can be measured within a short time. This enables a higher number of random samples to be drawn.

• Measuring cell – Used for very small sample amounts. In addition, the sensor can be replaced here.

• Many products can be measured, such as butter, fruit mixtures, spices, granules, PVC, mushrooms, xylitol, or seasoning.
  
  With the aw value measuring instruments, the shelf life and quality of products can be secured and controlled.
  
  The measuring device is a laboratory instrument and enables measurements in accordance with EN ISO 21807.

FAQ:

• What is water activity?
  Water activity is a measure of the free water available in a substance and its ability to support the growth of microorganisms such as bacteria, yeast, and mold. It is defined as the ratio between the vapor pressure of water in a substance and the vapor pressure of pure water at the same temperature, expressed as a value between 0 and 1.

• Why is the aw value measuring device important for food?
  Foods with high water activity, such as fresh fruits and vegetables, are more susceptible to spoilage and deterioration because the water provides an ideal environment for microorganisms. Foods with low water activity, such as dried fruit, are more stable and can be kept longer.

• Can the aw value measuring device be used for meat?
  Yes, the humimeter RH2 water activity meter is used for meat. Fresh meat has the highest water activity, and preservation reduces the availability of moisture for microorganisms.

• What is Equilibrium Moisture?
  Equilibrium moisture content is the moisture a material will absorb and retain at a given temperature and relative humidity when in a steady state. As humidity changes, the material gains or loses moisture until equilibrium is reached.

• What is the optimal aw value?
  The optimal value depends on the product. Each food has its own limits that determine when mold growth is possible.

Benefits

• Aw value, relative humidity, absolute humidity, dew point, equilibrium moisture content

• Fast adjustment behavior

• Long-term stable humidity and temperature sensors

• Easy data storage on the portable moisture meter

• Optimal documentation of your quality

• Portable handset

• High measuring accuracy