99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com Back to the Extech MO220 Product Page User Guide Moisture Meter Model MO220 Introduction Congratulations on your purchase of the Extech MO220 Moisture Meter. This instrument is a conductivity moisture meter specifically designed for the wood industry. The instrument has eight calibration scales, enabling the user to take accurate moisture measurements in 150 wood species.
Specifications Display Measurement principle Range Electrode length Electrode pins Auto Power OFF Power supply Meter housing Operating Temperature Operating Humidity Dimensions Weight Dual measurement scale LCD with bargraph metering Electrical resistance Wood: 6 to 44%, Building materials: 0.2 to 2.0% 0.3” (8mm) Integrated, replaceable After approx. 15 minutes Two (2) ‘AAA’ 1’5V batteries Impact-proof plastic o o 32 to 104 F (0 to 40 C) 85% Relative Humidity maximum 5.1 x 1.6 x 1.0” (130 x 40 x 25mm) 3.
Operation CAUTION: The electrode measurement pins are extremely sharp. Use care when handling this instrument. Cover the pins with the protective cap when the instrument is not in use. Basic Measurement Instructions 1. Remove the cap to expose the needle electrodes OR connect the heavy duty moisture probe socket on the right hand side of this instrument 2. Switch the meter ON by pressing the button. 3.
Manual Accuracy Check There are two (2) sets of calibration poles located inside the meter’s protective cover. One set is for the 18% calibration and the other is for the 26% calibration, as marked inside the cover. When checking the calibration, the A scale should be selected and the temperature probe must be disconnected. Touch the two measurement pins to the 18% calibration nodes and view the measurement on the meter display. Do the same for the 26% calibration.
Calibration Tables for Wood Wood Species Group Tables Common names of wood (BS-888 & 589:1973) Wood Species Abura Afara Aformosa Afzelia Agba Amboyna Ash, Ash, Ash, Ayan Baguacu, Balsa Banga Basswood Beech, Berlina Binvang Birch, Birch, Bisselon Bitterwood Blackbutt Bosquiea Boxwood, Camphorwood, Canarium, Cedar, Cedar, Cedar, Cherry, Chestnut Coachwood Cordia, Cypress, Cypress, Cypress, Dahoma Danta Douglas Elm, Elm, Elm, Elm, Empress, Erimado Fir, Fir, Fir, Gegu, American European Japanese Brazilian Wang
Wood Species Greenheart Guarea, Guarea, Gum, Gum, Gum, Gum, Gurjun Hemlock, Hiba Hickory Hyedunani Iroko Ironbank Jarrah Jelutong Karpur Karri Kauri, Kauri, Keruing Kuroka Larch, Larch, Larch, Lime Loliondo Mahogany, Mahogany, Makore Mansoia Maple, Maple, Maple, Maple, Matai Meranti, Meranti, Merbau Missanda Muhuhi Muninga Musine Musizi Myrtle, Naingon Oak, Oak, Oak, Oak, Oak, Oak, Obeche Odoko Black White American Saligna Southern Spotted Red Western New Queensland Zealand European Japanese Western
Wood Species Okwen Olive, Olivillo Opepe Padang Padauk, Panga Persimmon Pillarwood Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Pine, Poplar, Pterygota, Pyinkado Queensland Queensland Ramin Redwood, Redwood, Rosewood, Rubberwood Santa Sapele Sen Seraya, Silky Silky Spruce, Spruce, Spruce, Spruce, Stringybark, Stringybark, Sterculia, Sycamore Tallowwood E African African Panga American American Bunya Caribbean Corsican Hoop Huon Japanes
Wood Species Teak Totara Turpentine Utile Walnut, Walnut, Walnut, Walnut, Walnut, Wawa Wandoo Whitewood Yew African American European New Queensland Guinea 9 Group F E C J J A C B C G J C C Model MO220 V1.
Botanical Names of Wood Wood Type Abies Abies Abies Acanthopanex Acer Acer Acer Aetoxicon Aformosia Afaelia Agathis Agathis Agathis Amblygonocarpus Amblygonocarpus Araucaria Araucaria Araucaria Berlinia Berlinia Betula Betula Betula Betula Bosquiera Brachylaena Brachylaena Calophyllum Canarium Cardwellia Carya Cassipourea Cassipourea Castanea Cedrea Ceratopetalum Chamaecyparis Chamaecyparis Chlorophora Cordial Corton Cryptomelia Cupressus Dacryium Dalbergia Diospyros Dipterocarpus Dipterocarpus Distemonanth
Wood Type Entandrophragma Entandrophragma Entandrophragma Endiandra Erythrophleum Eucalyptus Eucalyptus Eucalyptus Eucalyptus Eucalyptus Eucalyptus Eucalyptus Eucalyptus Eucalyptus Eucalyptus Eucalyptus Fagus Flindersia Fraxinus Fraxinus Fraxinus Fraxinus Gonystylus Gossweilodendron Gossypiospermum Grevillea Guarea Guarea Guibortia Hevea Intsia Juglans Juglans Khaya Khaya Larix Larix Larix Larix Liquidamper Lovoa Lovoa Maesopsis Mansonia Millettia Mimusops Mitragyna Nauclea Nesogordonia Nothofagus Ochroma O
Wood Type Octomeles Olea Olea Palaquium Paulownia Pericopsis Picea Picea Picea Picea Picaenia Pinus Pinus Pinus Pinus Pinus Pinus Pinus Pinus Pinus Pinus Pinus Pinus Pipadeniastrum Piptadenia Podocarpus Podocarpus Podocarpus Populus Pruns Pseudotsuga Pterocarpus Pterocarpus Pterocarpus Pterygota Quercus Quercus Quercus Quercus Quercus Ricinodendron Sarcocepalus Scottellia Sequoia Shorea Shorea Sterculia Swietenia Swietenia Syncarpia Syncarpia Tarrietia Taxus Tectona Grp sumatrana hochstetteri welwitschii
Wood Type Terminalia Thuja Tujopsis Tieghamella Tilia Tilia Triploehiton Tsuga Ulmus Ulmus Ulmus Xylia Zelkova Grp superba plicata dolabrat heckelii anericana vulgaris scleroxylon heterophylia amercana procea thomasii dolabriformis serrata A C J B G E G C E E E E B NOTES: The calibration data in this table are based on standard tests by oven-drying of commercial samples of the various wood species, between 7% and fibre saturation.
Building material measurements: Select the ‘A’ scale to measure building materials. Refer to the following conversion table to obtain the building material moisture value. Std Bldg ChipMat’l Species Group Scale board B C E F G H J A %H2O 6 3 7 4.8 9.2 9.4 8.6 6.8 6.7 11.0 10.1 8 7.0 10.0 10.3 9.3 7.4 7.4 11.5 11.0 9 8.7 10.8 10.9 9.7 7.9 8.1 12.1 11.6 8.5 10 10.5 11.7 11.5 10.4 8.6 8.8 12.7 12.2 9.4 11 12.2 12.7 12.6 11.3 9.5 9.7 13.4 13.4 10.5 12 13.3 13.
