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Merlin EVO SM User Manual
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Merlin EVO SM User Manual

Wood moisture meter
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USER MANUAL
EVO
SM
WOOD MOISTURE METER
for non-destructive measurement of wood products
with a roughly sawn surface
Excellent Business Conditions.

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Summary of Contents for Merlin EVO SM

  • Page 1 USER MANUAL WOOD MOISTURE METER for non-destructive measurement of wood products with a roughly sawn surface Excellent Business Conditions.
  • Page 2 (wood work) (saw mill) Hints of the manufacturer (read in any case before using the meter) Thank you for buying a MERLIN Moisture Meter! Please read the instructions carefully. Helpful hints are marked “IMPORTANT”. See page 23 for a summary.

  • Page 3: Technical Specifications

    1. Technical Specifications WW (wood work) (saw mill) EVO WW: 20 mm Scanning depth EVO SM: 40 mm EVO WW:13 mm Min. wood thickness EVO SM: 25 mm Density range 175 - 1075 kg/m³ Timber group 1 - 21 Resolution 0,1 % humidity;...
  • Page 4 2. Description of EVO-meters Application area: The MERLIN® meters are designed for measurement of timber products with planed (EVO ) and roughly sawn surface (EVO Front: User Manual EVOww/EVO — Version 2016/1 ©...
  • Page 5 HOW DOES IT WORK ( EVO 5, 13, 25 ) As soon as the sensor plate is in contact with the surface of the wood, measuring starts. The processor of the instrument analyses the sensor readings and displays the result as a percentage of moisture content in the wood Excellent Business Conditions.
  • Page 6 3. Set up The battery cover is located on the front side of the meter below the display and the buttons. To insert the batteries push the battery cover opener underside and connect 4 pcs. 1,5 V AAA batteries. Carefully put battery cover back on. Your meter is now ready to work.
  • Page 7 4. Turn meter on Turn the meter on by pressing the ON- button and release it after approx. 3 seconds. The display flashes up. Now the serial number, software version and battery status appear. Afterwards the meter is ready for measurement. To turn off the meter push the ON-button again and release it after approx.
  • Page 8 again, but with longer period between. Take care to push only one button! If the display remains off, check the batteries. The batteries could be discharged or disconnected 5. Display lighting To turn on the display lighting push the button. Attention! High power...
  • Page 9 6. Timber table * l = light (coarse), h = heavy (fin) many species density heartwood and sapwood differs. For the denser heart wood correct the wood group settings by (+1), for the lighter sapwood correct the wood group settings by (-1) to obtain more accurate readings.
  • Page 10 7. Measurement The operative meter shows following values on the display: Wood moisture Temperature Minimum thickness (wood) Evaluation Dry density Wood species Choose the wood species or dry density by pushing the  or  button. The wood species are in ascending order of dry density.
  • Page 11 After adjustment of desired wood species press the meter with appropriate support pressure (ca. 4 kg) against the measured material. The actual moisture content is displayed instantly. In addition an evaluation of the moisture appears on the display. There are four distinctions: Dry - Optimal - Moist - Wet Excellent Business Conditions.
  • Page 12 Below the lower measuring limit (below 2%) no evaluation is displayed. Division limits for the evaluation: 2 - 8 2 - 10 Optimal 8,1 - 11 10,1 - 15 Moist 11,1 - 17 15,1 - 20 17,1 – max. 20,1 – max. User Manual EVOww/EVO —...
  • Page 13 !Please note! The values are recommendations without guaranty and without liability for a standard application and can be different in each individual case, especially for non- standard applications e.g. other values are valid for damp room or laminated wood. To be absolutely sure seek advice from professional associations or the norm as well as supplier specifications.
  • Page 14 IMPORTANT: For highest accuracy of the measurement, the surface of the boards should be planed and even. For very rough lumber the measured value could be too low and a special correction factor should be determined to obtain accurate readings. Should dry density of the measured wood deviate from average dry density (g/cm³) (control density selection), it is necessary to correct the...
  • Page 15 meter needs to be slightly pressed (approx. 4 kg) against the wood while obtaining measurements. Ensure that there is no metal or similar material underneath the wood. This can influence the measurement. Excellent Business Conditions.
  • Page 16 8. Hold function (key icon) In case you have no straight sight to the display (e.g. at overhead measurements) you can use the hold button (key icon) to save the actual measured value on the display. In this case all four button symbols change to the key icon.
  • Page 17 9. Determine wood group setting for unlisted wood species For accurate readings the wood group setting should be determined according to ISO 3130 or DIN 52183. For approximate readings, we suggest the following procedure:  Measure Length, width and thickness of a block of wood in ...
  • Page 18 Example: Length = 100 cm, Width = 12 cm, Thickness = 2,55 cm Volume = 3060 cm³ Weight = 1415 gram at approx. 15 % wood moisture content, Density = (100 x 1415 / 3060)/(100 + 15 x 0,5) = 0,43 g/cm³ Dry Density: 0,43 g Choose wood density 420 by pressing the button ...
  • Page 19 10. Exceedance of measuring range The accuracy has been optimized for the main application range between 2 % and fibre saturation point of wood. Variation from the oven dry test may occur in case the measured value exceeds the fibre Excellent Business Conditions.
  • Page 20 saturation point (Ex. max. = exceedance of measuring range). This variation might be high due to a very dry outer layer and a wet core inside the wood. Measuring values in grey show you that the actual wood moisture is out of the measuring range mentioned above! User Manual EVOww/EVO —...
  • Page 21 11. What is also important The meters can be used in ambient temperatures between 0 °C (32 °F) and max. 40 °C (104 °F). The meter can be stored without batteries at temperatures from -20 °C (-4 °F) up to +60 °C (140 °F). To avoid battery leakage it is advisable to remove the batteries if you do not use the meter for a long time.
  • Page 22 The temperature of the measured material should have approx. the same temperature as the moisture meter. Temperature differences of above 5°C can affect the measurement results negatively. The meter should adapt to the climate for several minutes. User Manual EVOww/EVO —...
  • Page 23 SUMMARY:  Slightly press instrument towards wood surface, when taking a reading  Select the appropriate wood species (dry density) using the  or  button. Perform measurements along the fibre direction  To obtain averages or maximum values slide meter with the grain across the wood ...
  • Page 24  If you do not use the meter for a long time, remove the batteries  If batteries are low, a battery symbol lights up  Always handle the meter with care  If a species is not listed on the Timber Table, see page 17 to determine the wood species ...
  • Page 25  The sensor pad must be completely covered by the measured material  Consider maximum measuring depth and minimum wood thickness  You run an average measurement based on the measurement surface Excellent Business Conditions.
  • Page 26 MERLIN will, at its option, either repair or replace the instrument without charge, subject to the conditions and limitations stated herein. Such repair service will include all labor, as well as any necessary adjustments and/or replacement parts.
  • Page 27 MERLIN’s operating or maintenance instructions. Repair or replacement without charge are MERLIN’s only obligation under this warranty. MERLIN will responsible special, consequential or incidental damages resulting from the purchase, use, or improper functioning of this equipment regardless of the cause.
  • Page 28 13. Nonliability Such damages for which MERLIN will not be responsible include, but are not limited to, loss of revenue or profit, downtime costs, loss of use of the equipment, cost of any substitute equipment, facilities of services, or claims of your customers for such damages.
  • Page 29 If the malfunction is still in process send your instrument in original packaging to your geographical agent or directly to MERLIN. Agents and employees of MERLIN are authorized make modifications to this warranty or additional warranties binding MERLIN.
  • Page 30 14. Accessory (optional) Test board PP2 It is a pleasure for us to inform you about our full range of MERLIN® moisture meters. User Manual EVOww/EVO — Version 2016/1 ©...

  • Page 31: Technical Support

    15. Technical support Local dealer Date / Stamp MERLIN® Technology GmbH Hannesgrub Süd 10 4911 Tumeltsham AUSTRIA Tel. +43 (0) 7752 71966 +43 (0) 7752 71988 www.merlin-technology.com office@merlin-technology.com Excellent Business Conditions.
  • Page 32 MERLIN Technology GmbH ® Hannesgrub Süd 10 4911 Tumeltsham / Ried i.I. AUSTRIA Tel +43 (0) 7752 71966 Fax +43 (0) 7752 71988 office@merlin-technology.com merlin-technology.com Seit 1995...