the user`s manual
Contents
1. real one As you can see the influence of temperature on the accuracy is very significant Accelerating the process of air exchange between the measuring chamber and the surroundings shortens the waiting time This can be achieved by e g swinging the device in the air It is recommended to check the temperature every 10 15 minutes If two consecutive readings are the same it can be assumed that the temperature inside the case and the temperature of the surroundings are the same and the results of humidity and temperature displayed by the instrument are correct Warning Avoid placing very cold HYGROPEN in rooms of high humidity This may cause condensation on the case and sensors Consequently an out of range sign HI will be displayed onthe LCD The sensors will not be damaged and after some time when they dry off the moisture meter will operate normally 6 Examples of application 6 1 Measurement of moisture contents in concrete floor The method of measuring moisture contents in building materials described in chapter 4 is not the only one Another way is to measure humidity of air that is in equilibrium with the building material Use transparent plastic foil approx 40 cm x 40 cm to tightly cover the concrete floor at least 24h before the measurement There should be a considerable amount of air trapped under the foil the foil can not cling to the floor Seal the edges with tape If it is possible leave HYGROPEN under the f2. WWW pce group europe com GROUP PCE Deutschland Gmb H amp Co KG Tel 49 029 03 976 99 0 Fax 49 029 03 976 99 29 info warensortiment de www warensortiment de PCE Group Ib rica S L Tel 34 967 543 548 Fax 34 967 543 542 info pce iberica es www pce iberica es PCE Group Italia S R L Tel 39 0583 975 114 Fax 39 0583 974 824 info pce italia it www pce italia it USER MANUAL PCE HGP GROUP Contents l PRODUC QUOD 3 e LAET ONA rr mmmm 3 3 Measurements of wood moisture contents eee sess esee 3 4 Measurements of building materials moisture contents eseseesessssse 4 5 Measurements of air humidity and temperature esses 5 6 Examples of application seisssssesssesssese sees nnn nnn nn hann n as nn assa sna n aa snas nans 5 6 1 Measurement of moisture contents in concrete floor 6 2 Measurement of moisture contents in plaster 6 3 Surface temperature measurement 6 4 Dew point temperature measurement 6 5 Measurement of moisture contents in exotic wood types 6 6 Measurement of moisture contents in very dry wood 7 8 210 22 910 62 ce 6 8 Guarantee and repairs 1 cccccceccccnccccucccceeecsueessusesseeessesessesesseeessueesseeceseeesseessneesseesen 8 Attention The device can be turned on and off by pressing an
3. a sign BAT appears on the LCD This indicates that the battery has expired and should be replaced with a new one To replace the battery unscrew only one screw at the backside of the device furthest from the needles Replace the battery Pay attention to the correct polarity Store the device in a dry place Should the device not be used for a period longer than 2 weeks it is recommended to remove the battery before storage In this direction will find a vision of the measurement technique http www industrial needs com measuring instruments htm NOTE This instrument doesn t have ATEX protection so it should not be used in potentially explosive atmospheres powder flammable gases 13
4. of the displayed result Example the result of 24 0 indicates that the moisture contents in concrete is approximately 24 8 23 096 5 Measurements of air humidity and temperature Moisture Meter HYGROPEN can be used to measure relative humidity and temperature of the air The sensors are located below the slits in the forward part of the device To enable the air flow to the sensors move the cap half way or remove it completely To measure relative humidity use SELECT to choose AIR RH To measure temperature use SELECT to choose AIR TEMP The LCD will present two numbers in the middle air temp C in the upper left corner dew point temperature C see chapter 6 4 Dew point temperature measurement Waiting for the results The general rule is to wait until the result stabilizes i e it practically stops changing Waiting time is proportional to the difference between the temperature of the instrument and the temperature of the surrounding air Correct results can be obtained no sooner than the temperature of the instruments case is equal to the temperature of the surrounding air If the temperature of the case and the temperature of the air inside the device around the sensors is 1 C higher than the real temperature of the air in the room the measured humidity will be 3 lower than the real one Similarly if the temperature of the case is 1 C lower than the real one the indicated humidity will be 3 higher than the
5. 3 within ranges 0 20 and 85 100 1 C 42 F 1 within range 6 15 2 within range 16 28 over 28 approx Measurement Resolution air humidity air temperature wood moisture cont Sensor types air humidity air temperature Power Battery life Auto power off Low power indications Size Guarantee 0 5 RH 0 5 C 0 5 F 0 1 Capacitance HUMIREL resistance HUMIREL 12V bat 23A 2000 measurements yes after 5 min yes 160 x 27 x 15 mm 12 months 3 Measurements of wood moisture contents 3 1 Preparing the instrument for measurements To prepare the device for measurements of wood moisture contents proceed with the following steps turn the device on by pressing both SELECT and WOOD TEMP simultaneously remove the cap protecting the needles use SELECT to choose the appropriate group of wood types WOOD 1 or WOOD 2 or WOOD 3 a table containing most popular wood types is on the back of the device use WOOD TEMP to select the measured or estimated wood temperature the step is 5 C The selected temperature will be displayed in the upper left corner of the LCD 3 2 Moisture contents measurement Slowly insert the needles into the wood Do not use excessive force A line connecting the needles should be perpendicular to the fibbers of the wood fig 3 1 For moisture con tents below 20 the way of measuring perpendicular or parallel to the fibbers has no noticea
6. ble influence on the result Fig 3 1 If the wood is very hard and there is a danger of damaging breaking the device or the needles use extra nails Hammer two nails 1 5 mm thick inthe wood 15 mm apart and then touch the heads of the nails with the needles of the device fig 3 2 Read the result for exotic wood types see chapter 6 5 Fig 3 2 4 Measurements of building materials moisture contents The most commonly used method of measuring moisture contents in building materials e g concrete plaster brick gypsum is based on the measurement of the resistance Moisture Meter HYGROPEN is also based on that method To measure estimate the moisture contents follow these steps turn the device on by pressing both SELECT and WOOD TEMP simultaneously remove the cap protecting the needles use SELECT to choose BUILD MAT ammer two nails 2 3 mm thick in the floor 15 mm apart touch the heads of the nails with the needles of the device and read the result OoOoOoQ If the result is below 17 0 and there is a DRY sign displayed over it it indicates that the floor is dry If the result is between 17 0 and 20 0 and the signs DRY and WET are displayed alternately it indicates that the floor is almost dry If the result is over 20 0 and there is a WET sign displayed over it it indicates that the floor is wet and requires additional drying A very rough estimate of moisture contents in concrete can be calculated as 7s
7. d holding both SELECT and WOOD TEMP Buttons simultaneously Moisture Meter HYGROPEN is an electronic device and should be operated carefully and reasonably 1 Application Moisture Meter HYGROPEN is a universal state of the art electronic device for measuring moisture contents in wood building materials and also air humidity and temperature It is particularly useful for wood moisture contents measurements measurements of moisture contents in plywood parquet and concrete floors evaluation of moisture contents in buildings evaluation of atmospheric conditions air humidity and temp Despite its small size the device provides results of very high accuracy This is achieved by the usage of a special microprocessor and high quality humidity and temperature sensors The device is very user friendly The measurement of wood moisture contents includes wood type and temperature compensation 2 Technical data Measuring range air humidity air temperature dew point temp wood moisture contents building materials moisture contents Out of range indication below range over range Number of wood types Wood temp range Display Accuracy air humidity in 209C air temperature wood moisture contents 0 100 RH 5 C to 50 C 9 C to 50 C 6 60 indicator yes LO HI 3 groups 12 types 270 exotic types 0 C 50 C 32 F 122 F LCD dedicated 2 within range 20 85
8. elutong Juniper Kauri Keruing Koto Landa Larch europ Larch jap Larch sibir Laurel Chile Laurel Indian Limbali Lime Louro vermecho Balsamo Banga Wanga Basswood Berlinia Birch yellow Birch meanness Blackwood afr Blackwood austr Blue Gum Bomax Borneo Camphor wood Brushbox Bruyere Boire Cabbage bark black Campeche Campherwood real afr Canarium afr Cativo Chengal Cherry Chickrassy Cocobolo Madrono Pacific Magnolia Mahagony Kosipo Mahagony Tiama Makore Manbarklak Manio Maple Mountain Maple soft Maple sugar Menkulang Meranti yellow Meranti white Merawan Merbau Mersawa Moringui Muninga Musizi Mutenye Myrtle Nyatch Oak jap Oak red Oak stone Oak white Oak grape Oak haft Okan Okwen Olivillo Opepe Ovangkol Ozigo Padouk afr Padouk burma Padouk Manila Paldao Partidge Pencil wood afr virg Seraya red yell 11 Group 4 G 1 10 Pencil wood calif Pernambuc Pine black red Pine weymouth stone Pine pitch insignis Plum tree Podo Ponderosa Pine Port orfordcedar Purpleheart Quaruba Rauli Red peroba Redwood calif Rengas Robinie Roble Safukala Saligna Gum Sapo Sen Sepetir Seraya white African walnut Akatio Aniegr Aningori Bubinga Brasilian walnut Sikon Spruce Western White Shore pine Sucamore Sugi Sweet chestnut Sweetgum Tchito
9. la Thuya Maser Tangile Toosca Tupelo Umbrella tree Walnut americ West indian locust Whitewood White afara White peroba Willow Wood fiber insulating panels Yang Yemane Yew Lauran white red Mahagony Sipo Mahagony Mansonia Meranti dark red Meranti light red 12 6 6 Measurement of moisture contents in very dry wood Measurement of moisture contents in very dry wood below 10 requires extra care as it is very susceptible to interference During the measurement the result may appear to float or jump The source of this interference are electromagnetic charges and electromagnetic fields Often such measurements are conducted with very low humidity of surrounding atmosphere below 30 RH Such conditions intensify the difficulties During the measurement of moisture contents in very dry wood please observe the following rules conduct the measurement away from sources of electromagnetic interference e g away from engines high voltage wires walls with stray currents etc do not move the device do not walk by the device during the measurement use thin needles nails as this will assure best possible contact between them and the wood in extremely unfavourable conditions conduct the measurements on a grounded metal board or gauze and use a grounded armband 7 Storage and batteries The instrument is equipped with a power level control unit When the power drops below acceptable level
10. oil for the whole time fig 6 1 Correct results can also be obtained without leaving the HYGROPEN under the foil for the whole 24h It can be placed there later However three conditions must be met while placing the HYGROPEN under the foil do it in a way that will minimize the exchange of air between the volume trapped under the foil and the surroundings Fig 6 1a Fig 6 1b After placing the HYGROPEN under the foil seal it with tape or Plasticine fig 6 1 leave HYGROPEN under the foil for at least 2 hours Interpreting the results After 24 hours or after 24 hours 2 hours turn the instrument on and use SELECT to choose AIR RH Read the result all this without removing the instrument from under the foil If the result is lower than 75 RH the floor is dry Results between 75 and 85 can be considered acceptable Results over 85 indicate that the floor is still wet 6 2 Measurement of moisture contents in plaster Measurements of moisture contents in plaster are most commonly done in order to check if the wall is dry enough to be painted Use plastic foil approx 40 cm x 40 cm to tightly cover the wall at least 24h before the measurement Seal the edges with tape or Plasticine clean the surface fig 6 2 This will allow for the moisture contents to equalize throughout the cross section of the plaster Use SELECT to choose BUILD MAT Pierce the foil and pin the needles of the instrument into the plaster Read the res
11. the upper left corner dew point temperature C The instrument calculates the dew point temperature C based on current relative humidity RH and temperature C The dew point temperature is the temperature which causes the water contained in the air to condensate in form of dew fog or white frost The more water in the air higher humidity the higher the dew point temperature In certain tasks the knowledge of the current dew point temp is crucial An example of such task is painting steel structures with anticorrosion coating Condensation may cause the paint to loose tack with the structure and flow down with gravity For paint jobs a safe margin is 3 C i e the temperature of the surface should be at least 3 C higher than the dew point temp for the current conditions The knowledge of the dew point temp is also useful for determining the source of moisture in walls i e condensation or other external source 6 5 Measurement of moisture contents in exotic wood types The measurement of moisture contents in wood of exotic type should always be conducted with the following settings wood type WOOD 2 group 2 wood temp measured or estimated wood temperature Depending on the type of wood the result displayed by the device should be multiplied by the appropriate coefficient G given in Table 6 2 Example wood type Teak group 2 displayed result 12 2 real moisture contents 12 2 x 0 88 10 7 Gro
12. ult For oil based paints the results should not exceed 17 0 also indicated by the DRY sign For emulsive paints results up to 20 0 are acceptable also indicated by DRY or interchanging DRY and WET signs All results above 20 0 also marked by the WET sign indicate that the wall is wet and requires additional time to dry T JE Fig 6 2 P 6 3 Surface temperature measurement Usually the measurement of surface temperature is done using thermometers with special probes Moisture Meter HYGROPEN allows for an approximate measurement of the surface temperature Use SELECT to choose AIR TEMP and remove the cap protecting the needles half way Place the instrument on the surface LCD down After some time e g every 10 minutes turn the instrument right side up read the result and turn it back LCD facing the surface again Repeat these steps until the result stabilizes lf two consecutive readings are the same the result is the temperature of the surface Truthfully it is the temperature of the air approx 1 cm over the surface The surface temperature measurement helps estimate the distance to the dew point temperature It can be useful to evaluate the danger of water condensation on the surface See chapter 6 4 Dew point temperature measurement 6 4 Dew point temperature measurement TO measure dew point temperature use SELECT to choose AIR TEMP The LCD will present two numbers in the middle air temp C in
13. up 1 G 0 88 Group 2 G 0 88 Group 3 G 0 98 Table 6 2 EXOTIC WOOD TYPES Chipboard phenolic resin bonded Assegai Avodir Box tree Brazilian rosewood Chipboard urea bonded Cedar white red Cocuswood Columbian pine Cypress southern Dahoma Dogwood Doug lasie Ebony afr asiat Ebony macassar Europen aspen Freijo Goncalo Groupie Greenheart Guaycan Hardboard Idigbo Pyinkado Quebracho Blanco Quebracho colorado Ramin Redcedar western Sandalwood Sapele Sasswood G COEFFICIENT VALUES Gonzales Alves Parana Pine Zebrano Indian Rosewood Iroko Jarrah Karri Kempas Kokrodua Mahagony Khaya Mahagony Sapelli Massaranduba Mecrusse Moabi Mora Mucarati Muhimbi Muhuhu Mukulungu Mukusi Niove Nyankom Obeche Okoume Olive tree Ozouga Pear Persimmon Pillarwood Pink Ivory wood Pockholz Satinwood Snake wood Sucupira Tali Teak Tulipwood Wacapou Wattle black Wenge Zapatero 10 Abura Afcelia Agathis Agba Alder Alstonia Amazokoue Amendoim American Mahagony Andiroba Andoung Angelin Angelique Antiaris Ash americ Ash jap Ash meanness Aspe Assacu Azob Baboen Bahia Baitoa Balau Balsa Coigue Cypresse Daniellia Danta Diambi Douka Elm Esia Eucalyptus Europen plane Evino Eyong Frak Gerongang Gedu Nohor Guarea Guatambu Gum tree Haldu Hemlock Hickory Hornbeam Horse cestnut llomba Izombe Jacareuba J
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