Humidity detector FMW-B
to measure humidity in wood without any damages or punctures in the material

The humidity detector of wood FMW-B determines moisture content by means of the capacitive method. In this Humidity detector FMW-B an electromagnetic field quickly determines capacitance of wood. Moisture content in wood is internally determined by means of a gross density.
The Humidity detector FMW-B has three important advantages:
  - It measures moisture content without damaging wood when it is placed on it.
  - Measurement results are quickly displayed.
  - Because of the high accuracy of humidity values a drying test will not be needed                        (real absolute humidity is measured / the Humidity detector FMW-B meets with all the European standards EN 13183-1, EN 13183-2, EN 13556)
This humidity detector is very easy to use as well as very solid. The humidity detector FMW-B is an irreplaceable tool for both wood manufacturing and purchasing as well as for any professional sector where wood is considered a raw material. It is also able to measure a wide range of wood types (gross densities are stored in the detector).

Three steps measuring process:

1. Turn-on and zero setting.

2. Fitting of  wood thickness (selected from memory)

3. Measuring and reading moisture content.

Adjustments:

• MAX, memory or Scan mode

• Entry of the specific weight of wood from 250 ... 1100 kg/m³ in 10 kg intervals.

• Relative values for building materials.

View / print user's manual of the humidity
 detector of wood MW-B

Functionality

The humidity detector of wood FMW-B is guided by a microprocessor-unit to determine quickly moisture content in wood and building materials. The humidity detector FMW measures moisture content when the lower frontal sensor is placed during half a second on the material. It is also possible to measure through papers or paints.
After introducing the unit weight (gross density) of any wood type, absolute humidity can be highly precise determined in all wood types. With the humidity detector FMW moisture content can be measured in many different wood types from 250 to 1100 kg/m³ (see chart below).
Humidity is determined by contact using a high-frequency technique. Measurements can be taken without damaging the material surface. So, this detector is specially used for finished products or for fast controls in situ.

Put the humidity detector on the wood. Radiation penetrates is wood up to 25 mm depth to measure absolute humidity.
Characteristic density curves of wood are stored in the detector and can be selected in a very easy way. Humidity can be determined for an specific wood type with high accuracy.

Softwood
- Fir
- Canadian Fir (east, west)
- Agathis (heavy, light)
- Alcere
- Alerce (European, Japanese, Russian)
- Alerce (American, East, West)
- Red Cedar
- Douglasie (heavy, light)
- Mañio
- Pine (European, Nordic)
- Pine (light, heavy, Caribbean, American)
- Pine (European, Nordic, Kern, Spint)
- Pine (French)
- Pine Parana
- Pine Radiata
- Pine Sitka
- Pine Sugar
- Pine Weymouth
- Yellowwood
- Redwood (Californian, heavy, light)
- Sugi


Attention: All the characteristic curves of the wood types of this column and the adjoining one are stored inside the humidity detector FMW-B. They can be displayed by introducing the corresponding gross densities. A chart with all the materials and wood types will be included in the delivery.

To take into account:
On measuring moisture content in wood, the result will be more accurate on smooth surfaces. Measuring value will grow on chips or knots. On the contrary, if measurements are taken on breaks, humidity value will be lower in relation to the real humidity value (absolute humidity).
In both cases, you will have to measure near the area is going to be measured.


Measurement accuracy:
The wood has an inhomogeneous composition. So, gross density oscillations can be produced at measuring the same wood type so you will have to take diverse humidity measurements an the measurement result will be the mean value calculated by the detector. 


Wood surface:
In rough surface wood types, the result displayed in the humidity detector can be lower.


Grain direction of board:
The result will not be affected if measurement is taken either in the grain direction or against grain direction. 


Measurement depth:
Measurement depth is 25 mm. If wood is very thin (p.e. < 1 cm thickness) measurement will be carried out through the wood. The material on the wood will also be measured partially.


Measuring surface:
During measurement the humidity detector has to be on the surface is going to be measured to avoid mistakes in the results

Deciduous wood
- Abachi
- Abarco
- Birch (European)
- Abura
- Afrormosia
- Poplar
- Alone
- Amburana
- Avodire
- Baboen
- Balsa
- Bilinga
- Bodo
- Bomanga
- Bonkonko
- Bosse
- Mahogany (Bassam, Honduras, sapeli, sipo, tiama)
- Chestnut (noble)
- Cherry-tree (European, American)
- Cedar
- Poplar
- Keruing (light, heavy)
- Dabema
- Danta
- Dibetou
- Durian
- Essessang
- Framire
- Freijo
- Ash (European)
- Fuma
- Beech (European, vaporized, non-vaporized)
- Igaganga
- Ilomba
- Iroko
- Jelutong
- Kapur
- Kosipo
- Krappa
- Kwarie
- Lauan (red)
- Limba
- Makore
- Mansonia
- Matakki
- Matoa
- Mengkulang
- Meranti (dark red, light red)
- Movingui
- Muninga
- Niangon
- Walnut (European, American)
- Satin walnut
- Oega
- Elm
- Okoume
- Padouk (African)
- Pear tree
- Peroba
- Peroba (pink)
- Banana tree
- Possentrie
- Ramin
- Oak (European, light, heavy, American,
            white, red, Japanese)
- Tasmanian Oak
- Willow
- Sapupira
- Sen
- Sepetir
- Seraya (red, white)
- Soemaroepa
- Tabaca
- Tchitola
- Teca
- Lime tree
- Tola branca
- Wane
- Yang

Building materials
For building materials it is possible to introduce "0" value. For this detector there is only a single characteristic curve (mean characteristic curve). With the humidity detector FMW-B you will be able to determine easily humid zones in floors, walls, etc.. for a relative measurement in wet or weak areas.

Delivery contents
1 humidity detector of wood FMW-B, 1 battery, 1 protective cover, user's manual and additional indications to measure humidity

Contact:
Companies House England
Tursdale Business Park
Co. Durham - DH6 5PG
United Kingdom
Phone. +44 ( 0 ) 191 377 3398
Fax +44 ( 0 ) 191 377 3357

This page in German in Italian in Spanish in Croatian in French .

Below you will find an overview of the different product groups of measuring instruments