Extech Instruments MO210 User manual

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.

Model MO210 Version 1.0 Aug 2007

Specifications

Display Dual measurement scale LCD with bargraph metering

Measurement principle Electrical resistance

Range Wood: 6 to 44%, Building materials: 0.2 to 2.4%

Electrode length 0.3” (8mm)

Electrode pins Integrated, replaceable

Auto Power OFF After approx. 15 minutes

Power supply Three (3) CR-2032 button cells

Meter housing Impact-proof plastic

Operating Temperature 32 to 104oF (0 to 40oC)

Operating Humidity 85% Relative Humidity maximum

Dimensions 5.1 x 1.6 x 1.0” (130 x 40 x 25mm)

Weight 3.5 oz. (100g)

Description

Meter Description

1. Measurement electrode pin

2. Cutoff switch

3. LCD (detail below)

4. Hand grip

5. Verification Test Points

6. Battery check Test Points

7. Removable cap

8. Material Selector Switch

Display Description

1. Graphical Display

2. Numerical Reading

3. Units

4. Low Battery Indicator

5. Solid lines – even number

6. Dashed lines – odd number

Wood Scale Building Material

Scale

Model MO210 Version 1.0 Aug 2007

Operation

1. Remove the protective cap to expose the electrode pins.

2. The meter automatically switches ON when the cap is removed.

3. The meter automatically shuts OFF when the cap is replaced.

4. 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.

5. Slide material selection switch to read wood moisture or building moisure.

6. 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.

7. Take several readings in several locations on the material for the best

representation of the amount of moisture present.

8. Read the measurement values on the display.

9. Replace the protective cap when finished.

Reading the Display

1. The LCD display has two scales

2. The wood scale indicates wood moisture from

6 to 44%.

3. The building materials scale (plaster, brick,

concrete, mortar, etc.) indicates moisture

content from 0.2 to 2.0%.

4. A continuous line indicates an even number.

A dotted line indicates on odd number.

5. The battery icon appears when the batteries

are weak and require replacement.

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.

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.

Battery Check

1. With the meter wood moisture position, touch the electrode

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.

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.

Wood Scale Building Material

Scale

Model MO210 Version 1.0 Aug 2007



Support line (781) 890-7440

Technical support: Extension 200; E-mail: [email protected]m

Repair & Returns: Extension 210; E-mail: [email protected]

Product specifications subject to change without notice

For the latest version of this User’s Guide, Software updates, and other up-to-the-

minute product information, visit our website: www.extech.com

Extech Instruments Corporation, 285 Bear Hill Rd., Waltham, MA 02451

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. Remove the Phillips head screw from the belt clip/battery compartment located

on the rear of the instrument.

2. Remove the batteries taking note of their orientation and polarity.

3. Install three (3) new CR-2032 button batteries observing polarity.

4. 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.

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