User manual

H60.0.71.6C-04 Manual Appendix GMH 38-LW1 / -LW2 page 4 of 8
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6 Handling
6.1 Start of operation
Switch the device on with the on/off key. After segment test the device is ready for measuring.
6.2 Selection of the characteristic curve
Selection of characteristic curve: by pressing the characteristic curve can be selected.
The use of inappropriate characteristics can cause faulty measurements!
Selectable material characteristics: (via “Sort”-function preselected, please refer to operating manual GMH 38xx)
Display
Characteristic curve
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By means of additional equipment (not within scope of sup-
ply) wood and building materials of many kinds can be meas-
ured – therefore the user has to add the referring characteris-
tic curves to the Sort- Preselection, or deactivate it complete..
With firmly pressed bales, we recommend the measuring
probe GSF 40 TF (not included in scope of supply).
R E F
Reference characteristic
h.458
Flax
h.46 1
Wood chips
h.462
Wheat
h.463
Barley
h.464
Hay
h.465
Straw
6.3 Temperature Measurement
The Temperature value will be displayed temporarily when key is pressed.
Let the Probe adjust to the material for at least 20 seconds to achieve good measuring precision.
7 Principles of the measurements
7.1 Moisture rating ( WET - MEDIUM - DRY )
In addition to the measuring value there is a moisture rating via bar graph.
This rating can only be a first approximate value, because factors like the application field of
the measured material have to be taken into account for the final rating.
Experience and knowledge can only be supported by this instrument, not replaced!
7.2 Temperature compensation
The temperature compensation is important for a reliable moisture-measuring.
There for the device features a temperature measuring at the Tip of the injection probe.
According to the selected material characteristic curve the device will use the associated temperature com-
pensation.
8 Measuring bales of straw hay bales
Always inject the electrodes form the plain side of round bales never from the round side, the probe can be
inserted much easier. For strongly pressed bales we suggest the probe GSF 40 or GSF 40 TF instead.
With loose medium ensure sufficient compression (e.g. like the description in chapter „Wood chips as fuel“)
For the storability, their quality assessment and purpose, the 38-LW Set is an important support of decision –
beside the decision of smell (fusty?) – consistence (dust…) and appearance (colour, impurities).
Less than 16 % u Measured material is sufficiently dry and storable.
16 - 20 % u Measured material includes increased humidity, appropriate dry before storage.
Above 20 % u extreme high humidity! Defer harvesting if possible or dry before storage
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