MO210

User Guide Moisture Meter Model MO210 Introduction Congratulations on your purchase of the Extech MO210 Moisture Meter. The MO210 detects moisture in wood and building materials such as wall board, sheet rock, cardboard, paper, plaster, concrete, and mortar. Careful use of this meter will provide years of reliable service. 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 2.4% 0.3” (8mm) Integrated, replaceable After approx. 15 minutes Three (3) CR-2032 button cells 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) 3.5 oz. (100g) Description Meter Description 1. 2. 3. 4. 5. 6. 7. 8. Measurement electrode pin Cutoff switch LCD (detail below) Hand grip Verification Test Points Battery check Test Points Removable cap Material Selector Switch Display Description 1. 2. 3. 4. 5. 6. Graphical Display Numerical Reading Units Low Battery Indicator Solid lines – even number Dashed lines – odd number 5 6 2 3 2 3 1 4 4 5 6 Wood Scale Building Material Scale 2 Model MO210 Version 1.0 Aug 2007 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. 1. 2. 3. 4. Remove the protective cap to expose the electrode pins. The meter automatically switches ON when the cap is removed. The meter automatically shuts OFF when the cap is replaced. To conserve battery life, the meter automatically shuts off after 15 minutes when the cap is left off. To revive the meter after an Auto Power OFF, simply press the yellow cut-off switch momentarily. Slide material selection switch to read wood moisture or building moisure. Carefully push the electrode pins as far as possible into the material under test. Note that the pins should be inserted into wood perpendicular to the wood’s fiber structure. Take several readings in several locations on the material for the best representation of the amount of moisture present. Read the measurement values on the display. Replace the protective cap when finished. 5. 6. 7. 8. 9. Reading the Display 1. 2. 3. The LCD display has two scales The wood scale indicates wood moisture from 6 to 44%. The building materials scale (plaster, brick, concrete, mortar, etc.) indicates moisture content from 0.2 to 2.0%. A continuous line indicates an even number. A dotted line indicates on odd number. The battery icon appears when the batteries are weak and require replacement. 4. 5. Auto Power OFF With the protective cap removed, the meter will turn off after 15 minutes to conserve battery life. Press the yellow cutoff switch momentarily to restart the meter. Always secure the protective cap when the instrument is not in use. Wood Scale Building Material Scale Instrument Measurement Verification check 1. With the meter wood moisture position, touch the electrode test pins to the two test points 1 and 2 at the top of the protective cap labeled ‘T’. 2. With the unit on and the electrode pins touching the ‘T’ test points, the meter should read 27% ±2%. If not, the meter may require repair. 1 2 Battery Check 1. With the meter wood moisture position, touch the electrode 3 4 test pins to the two test points 3 and 4 at the top of the protective cap labeled ‘B’ (see diagram). 2. With the unit on and the electrode pins touching the ‘B’ test points, the meter should read > 44% on the wood moisture scale. If not, replace the batteries. T B 3 Model MO210 Version 1.0 Aug 2007 Battery Replacement If the instrument does not switch on, displays the low battery symbol, or if the Battery Check yields less than 44% on the wood moisture scale, replace the batteries as follows: 1. 2. 3. 4. Remove the Phillips head screw from the belt clip/battery compartment located on the rear of the instrument. Remove the batteries taking note of their orientation and polarity. Install three (3) new CR-2032 button batteries observing polarity. Secure the battery compartment with the Phillips head screw. Electrode Pin Replacement To replace the two electrode pins: 1. Remove the protective cap 2. Unscrew the electrode pins 3. Install the new pins 4. Replace the protective cap Maintenance • • Always keep the instrument dry Prevent dirt from accumulating at the electrode pins Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies to sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our website www.extech.com for contact information. A Return Authorization (RA) number must be issued before any product is returned to Extech. The sender is responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or unauthorized modification. Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. Extech's total liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether written or oral, is expressed or implied. Support line (781) 890-7440 Technical support: Extension 200; E-mail: support@extech.com Repair & Returns: Extension 210; E-mail: repair@extech.com Product specifications subject to change without notice For the latest version of this User’s Guide, Software updates, and other up-to-theminute product information, visit our website: www.extech.com Extech Instruments Corporation, 285 Bear Hill Rd., Waltham, MA 02451 Copyright © 2007 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form. 4 Model MO210 Version 1.0 Aug 2007