Wood chips, pellets and solid timber are traded by weight, and the water in them is paid for at the price of the fuel. What separates the meters in this category is not accuracy alone but the way the material is presented to them: as a measured sample, as a pile that stays untouched, or as a stream running past a fixed sensor.
A sample poured into a measuring chamber gives the most repeatable result, because the quantity of material is known in advance. The BMA-2 works from a 12 litre sample automatically, the BMC from a 12.5 litre one, and the BP1 is made for pellets and their quality control.
Where the material cannot be scooped up and carried away, the measurement goes to it. The BLL has a 1 m probe for the pile, and the BL2 covers wood, wood chips and bales with three different ways of measuring in one device. For solid timber in the sawmill, the joinery or on site there is the WLW with a ram electrode.
Four fixed transmitters measure while the material moves, and they are not interchangeable. The BLC covers sawdust, wood chips and pellets and sends the reading to an analogue output only. The BRC is specialised for dry chips up to 30 % water content, the kind that go into wood gasifiers, and has a display of its own. The HGT is mounted directly in the wall of a conveyor, and the BLO is an analysing unit with a separate probe and a data logger. Each of those four cards ends with the comparison that decides between them.
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