Universal Humid - Measuring equipment BOSCH - Free user manual and instructions

USER MANUAL Universal Humid BOSCH

Wood group selection Wood group A Maple, birch, larch, Douglas fir, cherry tree, spruce Wood group B Ash, pine, oak, walnut, beech Reference values for the wood moisture content Dry <12% Concerning 12%to20% Moist >20% General Operating temperature –5°Cto+50°C Storage temperature –20°Cto+70°C Relative air humidity max. 85% Max. altitude 2000m Pollution degree according to IEC61010-1 2

Batteries 3x1.5VLR03(AAA) Approx. operating time 10h Weight according to EPTA-Procedure 01:2014 0.16kg Bosch Power Tools 1 609 92A 5EY | (29.04.2020)22 | English Moisture meter UniversalHumid Dimensions 187x56x44mm A) At an operating temperature of 25°C B) Normally only non-conductive pollution occurs, although occasional temporary conductivity caused by condensation can be expected. Allow the measuring tool to acclimatise and remove condensation from the pins before taking a measurement. The serial number(8) on the type plate is used to clearly identify your measuring tool. Assembly Inserting/changing the Batteries It is recommended that you use alkaline manganese batteries to operate the measuring tool. To open the battery compartment, remove the battery compartment cover(9). Insert the batteries. When inserting the batteries, ensure that the polarity is correct according to the illustra- tion on the inside of the battery compartment. Always replace all the batteries at the same time. Only use batteries from the same man- ufacturer and which have the same capacity. Tip: To easily remove the batteries, pull the strap in the battery compartment. Slide the battery compartment cover(9) back on again. u Take the batteries out of the measuring tool when you are not using it for a pro- longed period of time. The batteries can corrode and self-discharge during pro- longed storage in the measuring tool. Battery Indicator in the Display The following table shows the correlation between the capacity/operating time of the batteries and the battery charge indicator(e) in the display(3). Display Capacity/operating time 75%to100% 50%to75% 25%to50% <25% ≤15minutes of operating time 1 609 92A 5EY | (29.04.2020) Bosch Power ToolsEnglish | 23 When the battery symbol is flashing, no further measurements are possible. Change the batteries. Operation Start-Up u Protect the measuring tool from moisture and direct sunlight. u Do not expose the measuring tool to any extreme temperatures or variations in temperature. For example, do not leave it in a car for extended periods of time. In case of large variations in temperature, allow the measuring tool to adjust to the ambi- ent temperature before putting it into operation. The precision of the measuring tool may be compromised if exposed to extreme temperatures or variations in temperat- ure. u Make sure that the measuring tool has sufficiently acclimatised to the ambient temperature. In case of large variations in temperature, acclimatisation can take up to 30minutes. This may be the case, for example, if you first perform a measurement in a cool basement and then head upstairs to take a measurement in a warm attic. u Avoid hard knocks to the measuring tool or dropping it. After severe external influ- ences and in the event of abnormalities in the functionality, you should have the measuring tool checked by an authorised Bosch after-sales service agent. Tip: Affix the enclosed sticker with the wood groups and the corresponding wood types in the required language to the battery compartment cover(9). Switching on/off To switch on the measuring tool, press the on/off/hold button(1) or the select button for wood groups(2). The ambient temperature is shown for twoseconds on the dis- play(3) and the symbols for wood group selection, A and B flash in the line (a). When starting the tool for the first time, wood group A is selected by default. To switch off the measuring tool, press and hold the on/off/hold button(1) for approx. 1.5seconds. When the measuring tool is switched on again, the last selected wood group is preset in the measuring tool. Following fiveminutes of inactivity after the last measurement or the last button press, the measuring tool will switch itself off automatically to conserve battery life. Bosch Power Tools 1 609 92A 5EY | (29.04.2020)24 | English Measurement Preparations Setting the Wood Group For optimum measuring results, the wood group must be set before each measurement. Select the appropriate wood group with the button(2). The selected wood group is shown in the display(3). Tip: If the wood you are using does not appear in either of the two wood groups or you are unsure which type of wood is closest to the wood you are using, use wood group A. This generally indicates a higher value. This ensures that you are not processing your wood too early or too moist. When switching off the measuring tool, the set wood group is saved. When the measur- ing tool is switched on again, the last selected wood group is preset in the measuring tool. Object to be Measured The area in the wood to be measured must be untreated and free of branches, dirt, resin, rot, knurls or other defects. The wood should be free of chemical surface treatment. Do not perform any measurements on end surfaces, since the wood here dries out par- ticularly quickly. This could lead to incorrect measurement results. For measuring the humidity of fuels, it is advisable to split up the wood sample before measuring and then take measurements at three different points. Measuring points: 5cm from the left and right cut edges respectively, and in the centre of the piece of wood (seefigureB). Measuring process Take off the protective cap(6). To do this, lightly pull on both sides of the protective cap (6). Attach the protective cap to the rear of the measuring tool (magnetic), see figure on page 3. Before taking the measurement, ensure that the ambient temperature corresponds to the temperature of the object to be measured. If required, wait until the measuring tool has acclimatised to the ambient temperature. Carry out the moisture measurements at least 5cm from the cut edges, since the wood on the edge dries out quicker than in the centre (seefigureB). Do not measure the surface of the wood. Water that may have accumulated here as a res- ult of rain or dew can affect the measurement. Always measure across the grain. Do not measure parallel to the grain or along the growth rings (seefigureA). The measurement is taken at the depth at which the pins(5) are inserted. Optimum measuring results are achieved when the pins are inserted approx. 4–5mm into the 1 609 92A 5EY | (29.04.2020) Bosch Power ToolsEnglish | 25 piece of wood. The detents on the pins that have been placed at a depth of 5mm can be used for alignment. To start the measuring procedure, insert the pins into the wood. Caution: Do not use force to do this. You should refrain from using other objects to knock the measuring tool into the wood. Insert the pins into the wood using left-right motions. The measurement begins as soon as the pins(5) make contact with the wood. The meas- ured wood moisture content is shown in the display(3) on the line(a). The measured wood moisture content is also indicated via the LED(4): – Green: Non-critical wood moisture content (<12%) – Yellow: Concerning wood moisture content (12%to20%) – Red: Critical wood moisture content (>20%) Saving Measured Values To save the measured value, briefly press the on/off/hold button (1). The saved meas- ured value is displayed in the bottom line (b) of the display (3). A new measured value is shown in line (a) of the display (3). After saving the new measured value in the bottom line (b), the previous measured value is transferred to the line above (b), and so forth. Two measured values (b) can be shown on the display (3) at any one time. The saved measured values (b) are shown with the selected wood group and a moisture symbol in the form of water droplets: – One water droplet (corresponds to green LED): Non-critical wood moisture content (<12%) – Two water droplets (corresponds to yellow LED): Concerning wood moisture content (12%to20%) – Three water droplets (corresponds to red LED): Critical wood moisture content (>20%) Tip: This indicator can be helpful if the display(3) is not visible from a certain angle or if comparative measurements need to be taken. When the measuring tool is switched off, the stored measured values are deleted. Application Examples and Reference Values for the Wood Moisture Content in Timber Construction Wood moisture content measurement of: – Firewood before is set alight: Prevents smoke formation and reduces emissions – Parquet flooring before it is installed: Prevents gaps from forming after it is laid – Wood for furniture manufacturing: Prevents deformation, mould formation, insect in- festations and cracks Bosch Power Tools 1 609 92A 5EY | (29.04.2020)26 | English – Wooden houses/garden sheds: Prevents the formation of mould and reveals any wa- ter damage – Wooden caravans: Can be used to inspect a caravan for mould or unsound areas be- fore purchase/rental The following table shows the typical wood moisture content for various applications. Application range Wood mois- ture content

75...%100% 50...%75% 25...%50% >25% ≥15