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Summary of Contents for Extech Instruments MO55
- Page 1 USER MANUAL Dual Moisture Meter Pin and Pinless Moisture Measurements Model MO55 ShopExtech 1.877.766.5412 Shop for Extech products at: .com...
- Page 2 Introduction Thank you for selecting the Extech MO55 Pin and Pinless Dual Moisture Meter. The compact MO55 takes quick Moisture level reference measurements (in percent %) on wood and building materials. The MO55 can be used in pinless mode (rear sensor) or in pin mode. The MO55 is simple to operate and offers measurement digits, audible tones and ‘moisture drop’ icons to indicate moisture level content. The MO55 is ideal for building restoration projects and applications where moisture detection on floors and under carpets is critical. The MO55 is a great tool for analyzing the after‐effects of water leakage behind walls and in ceilings. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, Product Registration, and Customer Support. Features Displays the moisture level in wood and building materials (wall board, sheet rock, cardboard, plaster, concrete, and mortar) Pinless (non‐invasive) or Pin modes of operation Auto zero calibration for Pinless mode Audible tone rate beeps faster as the moisture level increases (8 tone variations) ‘Moisture drop’ Icons display low, medium and high levels of moisture content Easy‐to‐use, compact design Display Lock freezes reading on display Auto Power Off after 2 minutes conserves battery power Complete with extra pins (4), protective cap, and 9V battery MO55‐en‐GB_V1.0 02/16 ShopExtech 1.877.766.5412 Shop for Extech products at:...
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Page 3: Meter Description
Mode (M) Pin/Pinless and Material selection Display Lock/Beeper button Internal sensor (rear) Battery compartment (rear) Display Description Moisture Drop icons (1 droplet for low moisture content, 2 for medium, and 3 for high) Wood mode Building Material mode Beeper active icon Moisture reading digits Percent moisture unit (relative) Display Lock mode Battery status icon Button Description Button Button name Description Power ON‐OFF Press and hold to switch the meter ON or OFF Select Material (Wood, Building Materials) for Mode (Material Select) Pin or Pinless mode Short press locks reading on the display Display Lock / Beeper control Long press toggles the Beeper ON/OFF MO55‐en‐GB_V1.0 02/16 ShopExtech 1.877.766.5412 Shop for Extech products at: .com... -
Page 4: Operation
BUILDING WOOD (%) BUILDING MATERIAL (%) MATERIAL (%) TOTAL RANGE > 5.0~50.0 1.5~33.0 0.0~99.9 0.0~99.9 LOW 5.0~11.9 1.5~16.9 0.0~16.9 0.0~16.9 MEDIUM 12.0~15.9 17.0~17.9 17.0~29.9 17.0~29.9 HIGH 16.0~50.0 20.0~33.0 30.0~99.9 30.0~99.9 Auto Power OFF (APO) To conserve battery energy the meter automatically switches off after a two‐minute period of inactivity. MO55‐en‐GB_V1.0 02/16 ShopExtech 1.877.766.5412 Shop for Extech products at: .com... -
Page 5: Maintenance
Pinless Mode Comparison Measurements While holding the meter against a known dry surface, turn on the meter. Press the Mode (M) button to step to the preferred setting, blinking wood or blinking building material icon. The meter will now read 0% (relative/offset reading). Now move the meter to other areas to test to find higher levels of moisture. Maintenance Battery Replacement When the battery status icon appears empty or flashing, replace the battery. Remove the rear battery compartment cover by pushing the compartment latch. Replace the 9V battery observing correct polarity. Replace the compartment door securely. Dispose of battery responsibly and within applicable legal regulations. Never dispose of used batteries or rechargeable batteries in household waste. As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold. Disposal: Do not dispose of this instrument in household waste. The user is obligated to take end‐of‐ life devices to a designated collection point for the disposal of electrical and electronic equipment. Care and Cleaning When the instrument is not in use please keep the protective cap in place. Store the meter in a stable, dust‐free environment; out of direct sunlight. Remove the battery from the instrument if the meter is to be stored for long periods or if the battery power symbol appears empty (or flashing) on the display. To clean the meter case, wipe with a damp cloth do not use solvents or abrasives. To clean the pins, wipe carefully with a damp cloth to remove residue; allow to dry well. MO55‐en‐GB_V1.0 02/16 ShopExtech 1.877.766.5412 Shop for Extech products at: .com... -
Page 6: Specifications
Electrode pin type Stainless steel. Integrated, replaceable Auto Power OFF After approx. two (2) minutes Power supply One (1) 9V Battery (rear compartment) Consumption < 40mA Low Battery indication Battery status icon appears empty or flashing Operating conditions 5~45 C (41~113 F); 80%RH max. Storage conditions 0~50 C (32~122 F); 85%RH max. Dimensions 170 x 65 x 30mm (6.7 x 2.6 x 1.2") Weight 120g (4.2 oz.) without battery Copyright © 2016 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form www.extech.com MO55‐en‐GB_V1.0 02/16 ShopExtech 1.877.766.5412 Shop for Extech products at: .com...
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