WOHLER HF 550

Then the Wöhler HF 550 is right for you: Just one instrument is required to measure the moisture of firewood logs and bulk materials.

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WÖHLER HF 550
Wöhler from Germany

WOOD MOISTURE ADVANCED SET

Precise, reliable and features cutting edge technology: That is how you like to work. Then the Wöhler HF 550 is right for you: Just one instrument is required to measure the moisture of firewood logs and bulk materials.

The moisture content of solid fuels is often the cause for complaints when monitoring the threshold values of household fireplaces. However, using fuels with an appropriate moisture content can significantly reduce the emission of ollutants. This is where the Wöhler HF 550 provides ideal support: It even measures the moisture of wood chips in conformance with applicable standards. The instrument automatically recognizes if a probe is connected to measure the moisture of firewood logs or bulk materials. It switches to the corresponding menu and assists the measurement process with straightforward information. That guarantees the measurement conforms to the specifications contained in VDI 4206, Part 4 – with very little effort.

 

 

TECHNICAL DATA
Connections Wöhler Hammer Probe, Lance Probe,
Wöhler FW 550 Moisture Scale,
Temperature Probe, USB-data transfer
Power supply Lithium-ion battery 3.6V, 2,250 mAh, charging via USB
Working time ca. 20 h
(depending on the operating mode and the Display Backlight)
Storage
Temperature		 -20°C to +50°C
Operating
temperature		 +5°C to +40 °C
Weight 255 g (without probe)
Size 59 x 38 x 200 mm
Moisture measurement of firewood logs
Display Wood moisture u displayed in % relative to the dry mass of fuel;
user can switch to water content w displayed in % relative to the
moist mass of fuel
Wood species 14 wood species to choose from
Temperature
compensation		 Measures temperature of material by means of a temperature
probe
Measurement
principle		 Electrical resistance measurement
Range Moisture: 10.0 % u - 40.0 % u, resolution 0.1 % u
Water content: 9.0 % w - 29.0 % w, resolution 0.1 % w
Accuracy ± 40 % of reading according to VDI 4206 page 4
Moisture Measurement of bulk material
Display Wood moisture u displayed in % relative to the dry mass of fuel;
user can switch to water content w displayed in % relative to the
moist mass of fuel
The readings are displayed on the HF 550 screen or on the PC
screen
Bulk material Selectable: wood chips and pellets, as well as six species of grain
Measurement principle Dielectric mass measurement
Range Moisture: 0.1 % u to 70.0 % u, resolution 0.1 % u
Water content: 0.1 % w to 41.0 % w, resolution 0.1 % w
Accuracy 0.1 % u to 5.0 % u, if 2 % u
±40 % of reading in the range 5,0 % u to 70,0 % u
For fuels tested according to the requirements of VDI 4206 Part 4

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