Wood

QUALITY FROM AUSTRIA - SCHALLER MEASUREMENT TECHNOLOGY

Extensive measurement technology expertise for you!

Schaller develops and produces high quality air and material moisture measuring devices and optimizes measurement processes. With their own product line humimeter they meet all the requirements for fast, precise and simple measurement technology.

Their measuring devices for biomass are leaders on the world market – especially the patented professional measuring device humimeter BMA-2 impresses with its unique additional functions. The determination of the water content is indispensable in the bioenergy sector, as this largely determines the calorific value. The exact and simple moisture measurement with their professional measuring devices saves time and money.

Individually plannable online measuring systems are used for the continuous monitoring of the water content and the automatic LabDry-System facilitates standard-compliant measurement with scales and drying cabinet.


How is the moisture of biomass measured?

Biomass, as a renewable fuel, is now indispensable for generating energy. Professional moisture measurement ensures the quality of the valuable raw material, because the water content largely determines the calorific value. The water content also influences the storage life, the emissions released, the ash and the bulk density.

The test laboratory at Schaller Messtechnik, which is accredited according to EN/ISO 17025, answers which practical measurement methods are suitable for determining the water content of biomass.



Measurement in the laboratory

In the laboratory method, the fuel is dried in a drying cabinet according to DIN EN ISO 18134-2 for at least 12 hours at a defined temperature until the fuel's remaining mass is constant. The water content of the fuel is calculated from the mass loss due to oven drying. This method is used in accredited testing laboratories and is usually used as a reference for quick measurement procedures. Due to its high complexity, this method is prone to errors. It should also be noted that not only water evaporates, but also other ingredients - such as resins.


Electrical measurement methods

Electrical measuring methods are sensible alternatives for a much faster yet accurate water content determination. In practice, a quick determination of the water content is of great advantage.


The two most important electrical processes are:

Conductance based methods

With this method, the material to be measured is not changed. The method measures the water content based on the electrical conductivity, which increases with higher water content. The more water there is, the more conductivity arises and the electrical resistance decreases. This measurement happens very quickly because only the probe needs to be brought into contact with the biomass. However, the conductance is strongly dependent on temperature. Therefore, it is necessary to carry out an accurate and correct temperature compensation of the measurement result.


Dielectric processes

In the dielectric process, the water content is calculated by measuring the dielectric constant of water in the biomass. By irradiating the measuring frequency into the material, it is possible to analyze larger quantities of biomass. In addition, the method is less temperature dependent than the conductance method.


Conclusion

Each of the measurement methods described has its advantages and disadvantages. Correct and professional application is crucial. Measuring in the laboratory requires a lot of expertise - with rapid measuring methods, this expertise is already packed into the measuring device. Laboratory measurement should be the reference method for all moisture meter manufacturers. It is therefore advisable to pay attention to the standards when it comes to measuring devices. These guarantee that a standardized measurement procedure is used and that comparisons are therefore possible.


We would be happy to advise you on further variants of the application!



BLC - humidity transmitter

BLC - humidity transmitter

The Humimeter BLC Humidity transmitter is characterized by a very large measuring range.  The o..

BLO - Online biomass measuring system

BLO - Online biomass measuring system

Through the precise water content measurement with the robust humimeter BLO You can use the online e..

BRC - moisture transmitter

BRC - moisture transmitter

With the Humimeter BRC moisture transmitters optimize your dryer, oven or your wood gasification sys..

Humimeter BL2 -  Universal biomass moisture meter

Humimeter BL2 - Universal biomass moisture meter

Measuring process with the Humimeter BL2 hammer for moisture measurement of round timber and split l..

Humimeter BLL - Wood chips moisture meter with insertion probe

Humimeter BLL - Wood chips moisture meter with insertion probe

The entire measurement process is completed in a few seconds!Switch on the wood chip moisture meter ..

Humimeter BMA-2 - Patented professional moisture meter for water content determination of biomass and woodchips

Humimeter BMA-2 - Patented professional moisture meter for water content determination of biomass and woodchips

Patented professional moisture meter for water content determination of biomass and woodchips with o..

Humimeter BMC -  Moisture meter for water content determination of  wood chips and sawdust

Humimeter BMC - Moisture meter for water content determination of wood chips and sawdust

Measuring device for the rapid determination of the water content of wood chips and sawdustExact mea..

Humimeter BP1 - Pellet moisture meter

Humimeter BP1 - Pellet moisture meter

The Humimeter BP1 is a powerful wood pellets moisture tester for determining the water content of al..

Humimeter WLW -  Wood moisture meter

Humimeter WLW - Wood moisture meter

The entire measuring process with the Humimeter WLW wood moisture meter is finished in just a few se..

Test board PP2 - For merlin® moisture meters

Test board PP2 - For merlin® moisture meters

Test board PP2For merlin® moisture meters of HM9 WS, EVO, and ECO series. Check of specific density ..

Wood moisture meter - HM9 DUO - parquet flooring & cutting

Wood moisture meter - HM9 DUO - parquet flooring & cutting

Wood moisture meter HM9 DUO for parquet flooring & cuttingCombined device of HM9 WS5 and HM..

Wood Moisture Meter HM9 - WS1 for veneer

Wood Moisture Meter HM9 - WS1 for veneer

Wood moisture meter HM9 WS1 for veneerThe HM9 series of meters are electronic measuring devices..

Wood Moisture Meter HM9 WS13 for furniture

Wood Moisture Meter HM9 WS13 for furniture

Wood Moisture Meter HM9 WS13 for furnitureThe HM9 series of meters are electronic measuring devices ..

Wood Moisture Meter HM9 WS25 for cutting

Wood Moisture Meter HM9 WS25 for cutting

Wood Moisture Meter HM9 WS25 for cuttingThe HM9 series of meters are electronic measuring devices u..

Wood Moisture Meter HM9 WS5 for parquet flooring

Wood Moisture Meter HM9 WS5 for parquet flooring

Wood Moisture Meter HM9 WS5 for parquet flooringThe HM9 series of meters are electronic measuring de..

Showing 1 to 15 of 34 (3 Pages)