Extech Instruments MO55W Manuel utilisateur

USER MANUAL

Model MO55W

Wireless Datalogging Dual Moisture Meter

Pin and Pinless Moisture Measurements

MO55W-en-GB_V1.1 11/18

Introduction

Thank you for choosing the MO55W Wireless Datalogging Dual Moisture Meter. Use the MO55W

to take pin-based and pinless moisture measurements on wood and other building materials.

The MO55W is compact, easy to operate, and indicates moisture levels in a variety of ways:

digitally, audibly, and with ‘moisture droplet’ icon displays (1 drop for low levels, 2 for moderate

levels, and 3 drops for high moisture levels).

Pin-based measurements are the most accurate; however, they are invasive. Pinless

measurements are also accurate, but for best results use them for dry/wet comparison testing.

The MO55W is perfect for building restoration projects and other applications where it is critical

to detect moisture in and around flooring, tiles, and carpeting.

Transmit real-time readings, data-logged readings, and alarm data to your iOS® or Android™

devices thanks to the supplied Bluetooth® Wireless Datalogging Module (DAT12) and the ExView®

W-Series application.

The free ‘app’ is available from the Apple App store and Google Play™ store.

We ship this meter fully tested and calibrated and, with proper use, it will provide years of

reliable service. Please visit our website (www.extech.com) to check for the latest version of the

User Manual and for Customer Support.

Features

•Detects moisture in wood and other building materials (wall board, sheet rock, cardboard,

plaster, concrete, and mortar)

•Pinless measurements (internal moisture sensor) provide reference readings for dry/wet

comparison testing

•Pin-based moisture measurements for highest accuracy

•Easy ZERO/OFFSET calibration for pinless mode

•Beeper rate increases as moisture level increases (8 tone variations)

•‘Moisture droplet’ icons indicate low, medium and high levels of moisture

•Easy-to-use, battery operated, and compact design

•‘Display Hold’freezes reading on display

•Supplied Bluetooth® Wireless Datalogging Module (DAT12) transmits real-time moisture

readings, logged readings, and alarm data using the free iOS® or Android™ ExView® W-Series

application. The DAT12 stores over 15k readings.

•Auto Power OFF (APO) after 3 minutes to conserve battery power. There is no APO when

connected to the wireless application.

MO55W-en-GB_V1.1 11/18

Description

Meter Description

1. Protective cap and pin-mode test circuit

2. Measurement pins

3. LCD Display

4. Power ON/OFF button (long press)

5. Mode button: Short press to select pin,

pinless, wood, or building materials.

Long press to enable wireless

transmission (radio icon appears)

6. Display Hold (short press)/Beeper

button (long press)

7. Internal pinless moisture sensor

8. Battery/wireless module compartment

Display Description

1. Moisture droplet icons (1 drop for low moisture, 2 for moderate, and 3 for high)

2. Wood mode

3. Building material mode

4. Beeper active icon

5. Moisture reading digits

6. Unit of measure

7. Wireless transmission icon

8. Display Hold mode

9. Battery status icon

Button Description

Button

Button name

Description

Power ON-OFF button

Long press to switch the meter ON or OFF

Mode/Wireless button

Short press to select wood, building materials,

pin or pinless (flashing icon) modes

Long press for wireless transmission

Display Hold / Beeper button

Short press locks reading on the display

Long press disables/enables the beeper

MO55W-en-GB_V1.1 11/18

Operation

Operating Steps

1. For pin mode, carefully remove the protective cap to expose the electrode pins.

2. Switch the meter ON by long pressing the button. While powering, the meter emits

audible tones and the display switches on. If the meter does not switch on, please check the

battery (9V) in the rear compartment.

3. Short press the button to step through these operating modes:

•Wood (pin mode)

•Building Material (pin mode)

•Wood (pinless mode) icon blinking

•Building Material (pinless mode) icon blinking

4. For pin mode, push the electrode pins into the material under test.

5. For pinless mode, zero the display by holding the meter in air.

Then press the sensor firmly against a surface to begin testing.

6. Pin-based measurements are the most accurate as they make

direct contact with the test material. Pinless measurements are

also very accurate; for best results use the pinless mode to

compare dry area readings to areas of unknown moisture levels.

7. View the displayed reading and the number of moisture droplet icons . One droplet

indicates low moisture; two droplets indicates moderate moisture; three droplets indicates

high moisture. Refer to the chart on the meter and the one reproduced below.

8. In addition, listen for the audible tones, the higher the moisture the higher the beep rate;

note that there are eight tone variations indicating moisture levels.

9. Long press the power button to switch OFF the meter.

Measurement Interpretation Table

LCD

PIN MODE (%)

PINLESS MODE (RELATIVE)

WOOD

BUILDING

MATERIAL

WOOD

BUILDING

MATERIAL

TOTAL RANGE >

5.0 ~ 50.0

1.5 ~ 33.0

0.1 ~ 99.9

LOW

5.0 ~ 11.9

1.5 ~ 16.9

0.1 ~ 16.9

MEDIUM

12.0 ~ 15.9

17.0 ~ 19.9

17.0 ~ 29.9

HIGH

16.0 ~ 50.0

20.0 ~ 33.0

30.0 ~ 99.9

CAUTION: The electrode measurement pins are extremely sharp. Use care when

handling this instrument. Cover the pins with the protective cap when not in use.

MO55W-en-GB_V1.1 11/18

Auto Power OFF (APO)

To conserve battery energy the meter automatically switches off after a three-minute period of

inactivity. Several seconds before switching OFF, the meter beeps to alert the user. APO is

disabled while the meter is connected wirelessly to the smart device application.

Display Hold

Press the Display Hold button to freeze the displayed reading. The icon is visible on the

display when Display Hold is active. Press again to return to the normal operating mode.

Beeper ON/OFF

The beeper defaults to ON. To switch the beeper OFF, press and hold the Beeper button

until the icon disappears. Press and hold again to switch the Beeper ON. When the beeper is ON,

the audio display icon will be visible.

Pin-Mode Accuracy Test

Set the meter to Pin mode (Wood or Building materials) and then touch the electrode pins to

the contacts through the holes at the top of the cap. Expected result: Wood 17.0 to 19.0%;

Building 15.5 to 17.5%. If the reading exceeds these ranges, replace the battery and retry. If the

meter continues to read inaccurately, return the meter for service.

High and Low Alarm Limits (for use with ExView® W-Series wireless application)

The MO55W high/low alarm alerts are sent to paired iOS® and Android™ devices using the free

ExView® W-Series application. Set the high/low alarm limits per the steps below.

1. To set the High Alarm limit, long press the and buttons until the symbol H% appears

2. Use the button to adjust the left flashing digit, then press to confirm

3. Use the button to adjust the right flashing digit, then press to confirm

4. To disable the Alarm, long press the button until dashes appear

5. Repeat the above steps to program the Low Alarm limit (L%)

Alarm limit adjustment ranges:

•Pin (Wood): 6.0 to 50.0%

•Pin (Building materials): 2.0 to 33.0%

•Pinless (Wood and Building materials): 1.0 to 99.0%

Note that an error message appears (Err) when the High Limit is set </= Low Limit value

MO55W-en-GB_V1.1 11/18

Wireless Communication

Overview

We ship the MO55W with a Bluetooth® Wireless Datalogging Module (DAT12) installed. The

DAT12 transmits real-time readings, logged readings, and high/low alarm data to paired iOS® or

Android™ devices using the free ExView® W-Series application. The DAT12 stores >15k readings.

Installing/Replacing a Wireless Module

The wireless modules install in the rear battery compartment. To install a module:

1. Ensure that the meter is OFF before installing/replacing a wireless module

2. Remove the battery compartment cover and remove the battery

3. Insert the module in the slot at the top of the compartment with the arrow correctly

oriented at the top of the module

4. Attach the module to the 8-pin connector inside the compartment

5. Replace the battery and the battery compartment cover before use

Obtaining the Free Application

For iOS devices, download the ExView® W-Series application from the Apple App store.

For Android devices, download the ExView® W-Series application from the Google Play™ store.

Using the Application

1. Turn the meter power ON and select a measurement function on the meter.

2. Long press the button to start (or stop) wireless transmission (the display icon will

appear when the meter is transmitting).

3. On your smart device, tap the ExView® W application icon to start the App. (Bluetooth®

must be enabled on your smart device)

4. Tap the search icon located next to ‘Devices’. The App will search for available devices. Look

for the meter icon on the remote device. When the meter appears in the device list, tap it

to connect the meter to the App.

5. For more information, please refer to the ExView® W-Series Help Guide by tapping on the

Extech icon and then tapping the Help Guide link, or locate the document on the

extech.com/exvieww web page.

6. Please note that some Android™ devices require that you switch ON the device’s location

setting before the ExView® W app can establish a connection with the wireless meters.

FCC Compliance

A wireless module must be installed in the meter before the module can communicate

with iOS®/Android™ phones and tablets via Bluetooth® using the ExView® W application.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference received, including interference that may cause undesired

operation.

IC: 1590A-MO55W

FCC ID: IWK-MO55W

MO55W-en-GB_V1.1 11/18

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to

part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference in a residential installation. This equipment generates, uses, and can radiate radio frequency

energy and, if not installed and used in accordance with the instructions, may cause harmful interference to

radio communications. However, there is no guarantee that interference will not occur in a particular

installation. If this equipment does cause harmful interference to radio or television reception, which can be

determined by turning the equipment off and on, the user is encouraged to try to correct the interference by

one or more of the following measures:

1. Reorient or relocate the receiving antenna.

2. Increase the separation between the equipment and receiver.

3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

4. Consult the dealer or an experienced radio/TV technician for help.

WARNING

Changes or modifications not expressly approved by the party responsible for compliance could void the user's

authority to operate the equipment.

Maintenance

Battery Replacement

When the battery status icon appears empty or flashing, replace the battery.

1. Remove the rear battery compartment cover by pushing the compartment latch.

2. Replace the 9V battery observing correct polarity.

3. Replace the compartment door securely.

4. 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.

Pin Replacememt

A ten-pack of replacement pins, part number MO50-PINS, is available from an Extech sales

agent. To replace the pins using a small wrench, carefully loosen and remove the existing pins by

turning the nuts (at the base of the pins) counter-clockwise; install the new pins in the same

manner. Use care when replacing the pins, as they are sharp - especially when new.

MO55W-en-GB_V1.1 11/18

Specifications

Display LCD with multi-function indicators

Measurement Type Relative Moisture Content (%)

Measurement Principle Electrical resistance (pins)

Electrical capacitance internal sensor (pinless)

Measurement Depth Pinless mode: 25mm (1 in.) maximum

Auto-Zero Calibration Perform a pinless measurement in open air to zero/offset the LCD

Measurement Indication Digital, Moisture Droplet icons (1, 2, or 3 droplets) and audible tone

with (8) levels of intensity, indicating low to high moisture readings

Measurement Ranges PIN MODE: 5.0 ~ 50.0% (wood), 1.5 ~ 33.0% (building materials);

PINLESS MODE: 0.1 ~ 99.9% (for wood and building materials)

Resolution 0.1%

Accuracy (Pin mode) ± (3%rdg + 5 digits)

Electrode Pin Length 10mm (0.4”)

Electrode Pin Type Stainless steel; Integrated, replaceable

Auto Power OFF After approx. three (3) minutes

Power Supply One (1) 9V Battery (rear compartment)

Low Battery Indication Battery status icon appears empty or flashing

Operating Conditions 0 ~ 50oC (32 ~ 122oF); 80%RH max.

Storage Conditions 0 ~ 50oC (32 ~ 122oF); 85%RH max.

Dimensions 170 x 65 x 30mm (6.7 x 2.6 x 1.2")

Weight 120g (4.2 oz.) without battery

Contact Customer Support

Customer Support Telephone: U.S. (866) 477-3687; International +1 (603) 324-7800

Calibration, Repair, and Returns email: [email protected]

Technical Support: https://support.flir.com

ISO-9001 Certified

www.extech.com

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