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Schaller - Model RH2 -Water Activity Meter
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.
- Aw value measuring range from 0,03 to 0,99 aw
- Resolution 0,001 aw
- Calibration 0,10 to 0,80 +/- 0,01 aw
- Long-term stable sensor technology
- Very fast equalisation process
- Measuring chamber or measuring cell (depending on product volume)
- Lifetime Support
The humimeter RH2 food moisture content meter allows quick and easy measurement of water activity. We offer two different sensors:
- The 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.
- The measuring cell is 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 our aw value measuring instruments for food, the shelf life and quality can be secured and controlled.
The measuring device is a laboratory device and enables measurements in accordance with EN ISO 21807.
In the download area you will find the instructions for calibration and adjusting the water activity meter humimeter RH2.
- 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
- Relative humidity : Measuring range see sensor, resolution 0,1% RH
- Temperature : Measuring range see sensor, resolution 0,1 °C
- Dew point : -55 to +60°C, -67 to 140°F
- Absolute humidity : 0 to 130 g/m³, resolution 0,1 g/m³
- Equilibrium wood moisture content : 2 to 30%, resolution 0,1%
- Equilibrium moisture content granules : Resolution 0,01%
- Aw value, Water activity : 0,0 to 1,0, resolution 0,001
- Memory function : Online function, hold function, manual datalog
- Automatic datalog : Datalog for 10.000 values with measuring point report
- Dimensions : 145 x 75 x 30 mm
- Weight : 210 g (including batteries)
- Power Supply : 4 x 1,5 Volt AA Alkaline batteries
- Menu languages : English, German, Italian, French, Spanish, Portuguese, Czech, Polish, Russian, International