Extech Instruments MO270 Manual de usuario

User Guide

Wireless Moisture Analyzer

Model MO270

MO270-EU-EN-v2.1 11/12

Table of Contents

Introduction..........................................................................................................................................2

Features ..............................................................................................................................................3

Description...........................................................................................................................................3

Initial Setup and Battery Charging........................................................................................................6

Operation.............................................................................................................................................7

Measurement Screen Menus.............................................................................................................10

Alarm Operation.................................................................................................................................12

Trend Analysis Display Feature .........................................................................................................12

Memory Logging Mode ......................................................................................................................13

Calibration Verification.......................................................................................................................14

Battery Replacement .........................................................................................................................15

Maintenance......................................................................................................................................15

Specifications.....................................................................................................................................15

Appendix A –Wood Groups...............................................................................................................16

Appendix B –Menu Structure User Interface .....................................................................................20

Introduction

Thank you for selecting the Extech MO270 Moisture Analyzer with full graphical display. The

MO270 detects moisture in wood, particle board, carpeting, and ceiling/bathroom tiles non-

invasively (pinless); the MO270 also measures moisture in sheet rock and other building materials

using pins that are driven into the material under test. The Sensor unit (transmitter) detaches from

the Analyzer unit (receiver) for remote measurement operation. This analyzer is shipped fully

tested and calibrated and, with proper use, will provide years of reliable service. Extech

Instruments is an ISO-9001 certified company.

IMPORTANT NOTES –PLEASE READ BEFORE CONTINUING

The MO270 is a field upgradeable device in terms of its firmware. Please visit the

Extech Instruments website (www.extech.com) for the latest versions of the

firmware and the Instruction Manual.

To conserve battery energy, the MO270 is shipped with the two ‘hidden’ ON/OFF

switches set to OFF. Please refer to the ‘Analyzer Components’ diagram (items 5 and

6) in the Description section of this manual to locate these switches. Please switch

these ON in order to permit proper meter operation.

MO270-EU-EN-v2.1 11/12

Features

1. Detachable sensors transmit data up to 65ft (20m) to the analyzer’s display

2. Readings from up to eight (8) remote sensors can be viewed

3. Wireless sensor affixes to 4 ft. (1.2m) telescoping handle; Longer handles optional

4. Wood Moisture equivalent (%WME) pin readings

5. Programmable visual and audible High and Low Alarms

6. 2-point calibration check built into protective cap

7. Bluetooth capability

8. Includes two (2) 3.7V rechargeable Li-Polymer batteries (one for Analyzer and one for Sensor),

wireless moisture Sensor unit, external pin probe, replacement pins, telescoping handle, AC

adaptor, protective cap, 2G SD card, all necessary interconnecting cables, and hard case

Description

Analyzer Front View

1. Electrode pins and Protective cap with

calibration check points

2. Sensor release buttons (one on either side of

analyzer)

3. Graphical Display

4. Function buttons (F1, F2, F3)

5. Power button

6. Bluetooth status indicator lamp

7. Navigation (up, down, left, right) and ENTER

buttons

MO270-EU-EN-v2.1 11/12

Analyzer Side Views

1. Sensor release buttons

2. Ports reserved for future options

3. RJ-45 remote probe port

4. Sensor (transmitter) mini-USB charge-port

5. Mini-SD card slot

6. Analyzer (receiver) mini-USB charge-port

Analyzer Components

1. Cap with built-in calibration check

2. Measurement contact pins

3. Non-Contact capacitive sensor (transmitter)

4. Power button for sensor (used only when sensor is disconnected from receiver)

5. Lithium polymer battery shut-off switch for Sensor (transmitter); (used when

shipping/transporting the unit or when the unit is to be stored unused for long periods.

6. Lithium polymer battery shut-off switch for Analyzer (receiver)

7. Analyzer (Receiver) unit

IMPORTANT NOTE: The MO270 is shipped with the two ON/OFF slide switches set to OFF. Please

refer to the diagram above to locate these switches. Please switch these ON in order to permit

proper meter operation.

MO270-EU-EN-v2.1 11/12

Display Icons

ICON

Name

Function

(black)

Low Alarm set

Audible Low Alarm is set and active

(black)

High Alarm set

Audible High Alarm is set and active

(black)

Low Alarm set

Visual-only Low Alarm is set and active

(black)

High Alarm set

Visual-only High Alarm is set and active

(red)

Low Alarm triggered

Low Alarm has been triggered

(red)

High Alarm triggered

High Alarm has been triggered

(gray)

Transmitter ON

Transmitter is ON but not communicating with

peripheral device via BluetoothTM

(blue)

Active pairing

Active BluetoothTM communication between

receiver and peripheral device

(gray)

(RF) Wireless

Wireless transmitter is ON; sensor

communication is INACTIVE

(orange)

(RF) wireless

Wireless transmitter is ON; sensor

communication is ACTIVE

(blue)

REL mode

Reading moisture using non-invasive sensor

%(blue)

%WME mode

Reading moisture using ‘pin’ sensors

(black)

External probe

Reading measurement from external probe

(blue)

Internal probe

Reading measurement from internal probe

(red)

Recording

Unit is actively recording (on-screen)

(green)

Sensor (transmitter)

battery

Sensor battery (shown here fully charged)

(orange)

Analyzer (receiver)

battery

Analyzer battery (shown here minimally

charged)

MO270-EU-EN-v2.1 11/12

Initial Setup and Battery Charging

Getting Started

1. Charge the Sensor and the Analyzer batteries if necessary (refer to the ‘Charging the

Batteries’ section below). The battery icons on the upper right corner of the display provide

battery status for the Analyzer and the Sensor units.

2. To switch the analyzer ON, press and hold the power button for 3 seconds; the

navigation buttons will illuminate, the speaker will chirp, and the display will switch ON.

3. To power OFF, press and hold the power button for 3 seconds.

4. The F1, F2 and F3 buttons are ‘soft keys’; their functions change with the specific mode or

screen that is active.

5. The ▲, ►, ▼and ◄buttons are used to navigate the menu selections.

6. The center ENTER button is used to select the highlighted menu function and for

accessing the setup mode (by pressing and holding).

Charging the Batteries

1. Charging the batteries using an AC outlet

Connect the USB cable between the mini-USB port on the Sensor (or the Analyzer) and an

AC outlet. Charging will begin immediately. Note that connecting to the Analyzer’s USB port

charges both the Analyzer and the Sensor units simultaneously (while they are physically

connected to each other).

2. Charging the batteries using a PC USB port

a. With the Analyzer ON/OFF switch turned ON, connect the USB cable between the

mini-USB port on the Sensor (or the Analyzer) and a USB port on the PC. Note that

connecting to the Analyzer’s USB port charges both the Analyzer and the Sensor

simultaneously (while they are physically connected to each other).

b. Switch the Analyzer ON using the power button (hold it for 3 seconds) and the menu

show directly below will appear.

PC CAM (reserved for future use)

Disk Drive (meter behaves essentially as an external hard drive where stored

readings can be viewed and organized)

Charger (selected when connection to PC is to be used for charging purposes)

Note: The PC may return a driver error when the CHARGER option is selected as a

result of the PC sensing a new device connection; this can be ignored; the charging

process will not be affected.

3. Checking Battery Status

When ‘CHARGER’ is selected from the menu as discussed above (with the meter connected

to the PC), the battery icons will animate in a rising and falling motion indicating that

charging is taking place. To check the battery status, the meter must be disconnected from

the PC. Once disconnected, the display will show the two battery icons in the upper right.

The (Analyzer) and (Sensor) icons will be completely filled when the batteries are fully

charged and progressively emptier as the batteries weaken.

MO270-EU-EN-v2.1 11/12

Operation

Basic Operation for Pin Measurements%

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. Remove the protective cap to expose the electrode pins.

2. Press and hold the key for 3 seconds to switch the analyzer ON.

3. If the icon is displayed, proceed as follows to switch to the %icon.

a) Press the MENU (F1) button and navigate to the WME/REL box.

b) Press to toggle WME and REL (select WME) and then press EXIT.

4. Carefully push the electrode pins a minimum of 0.07” (2mm) into the material under test.

Note that the pins should be inserted into wood perpendicular to the wood’s fiber structure.

For high moisture readings, several minutes may be required for readings to stabilize.

5. Take readings in several locations on the material under test for the best representation of

the amount of moisture present.

6. Read the measurement value on the display.

7. Replace the protective cap when finished.

Using the Extender Probe Handle

The supplied telescoping handle can be used to extend the sensor into areas that are difficult or

unsafe to reach. Connect the sensor (transmitter) unit to the extender using the extender’s

mounting screw and the mounting screw hole on the sensor. Note that extender handles of

various lengths are optionally available. Once connected, instructions for use match those

provided above in the ‘Basic Operation for Pin Measurements’section and below in the ‘Basic

Operation for Pinless Measurements’ section.

Basic Operation for Pinless Measurements

1. Press and hold the key for three seconds to switch the analyzer ON.

2. If the %icon is displayed, proceed as follows to switch to the icon.

a) Press the MENU (F1) button and navigate to the WME/REL box.

b) Press to toggle REL and WME (select REL) and then press EXIT.

3. Press and hold the key for three seconds to switch the analyzer OFF.

4. Keep hands and other materials away from the rear sensor and then press and hold the

button to switch the analyzer ON. The analyzer will auto-zero during power-on.

5. The pinless moisture detector is located at the rear of the instrument, just behind the display.

6. Place the analyzer so that the sensor lies flat against the surface of the material under test.

7. Take 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.

MO270-EU-EN-v2.1 11/12

SETTINGS Menu Basics

1. Turn the analyzer ON.

2. Press and hold the button until the Main Menu appears

3. Press F1 (SETTINGS) to view the SETTINGS menu

4. Navigate the menu and sub-menus as desired. Each menu item is explained in the next section.

SETTINGS Menu in Detail

AUTO POWER OFF (APO) AND BACKLIGHT Settings

1. The APO or backlight timeout can be set in minutes.

2. Navigate to the APO/BL sub-menu in the SETTINGS menu

and press .

3. Scroll to the desired setting.

4. Press and then press EXIT or BACK when done.

CHANNEL Setting

Select the common channel over which a transmitter and receiver

will communicate. If several transmitters are owned, a unique

channel number can be used for each. Note that the transmitter

and receiver units must be interlocked when changing to a new

matching channel number.

1. To set the channel, first navigate to the CHANNEL sub-menu

in the SETTINGS mode and then press .

2. Navigate to the desired channel and then Press . The

Channel number will highlight.

3. Press EXIT or BACK when finished.

IMPORTANT NOTE: When two or more devices are set to the same channel, communication errors

between devices may result. Use separate channel numbers for multiple devices wherever possible.

MO270-EU-EN-v2.1 11/12

DATA FORMAT Setting

This allows the user to set the numerical delineator to a decimal

point (.) or to a comma (,).

1. Navigate to DATA FORMAT in the SETTINGS menu and

then press .

2. Scroll to the desired selection and then press .

3. Press EXIT or BACK when finished.

BLUETOOTH ON-OFF

1. To activate the BluetoothTM function, select BLUETOOTH

from the SETTINGS menu.

2. Scroll to PC MODE or OFF and press .

3. Software developers may contact Extech for the MO270

communication programming protocol.

4. Press BACK or EXIT when done.

TIME/DATE and FORMAT Settings

1. Navigate to TIME/DATE in the SETTINGS menu and then

press .

2. Scroll to the desired field and then press .

3. To change the Date or Time, use the left/right arrow keys to

move the triangle shaped pointer to the digit that is to be

changed.

4. Use the up/down arrows to change the digit’s value. Press

to store the new value and to switch off the arrow

pointer.

5. To select a time format, scroll to the desired field (MM/DD/YYY, DD/MM/YYY, 12H, 24H, AM, or

PM) and press . When in item is highlighted it is selected.

6. Press EXIT or BACK when finished.

SYSTEM INFORMATION (INF)

1. To view the System Information, navigate to SYSTEM INF in

the SETTINGS menu and then press .

2. The OWNER NAME and NUMBER can be changed by the

user; all other fields are provided for informational purposes.

3. Scroll to the OWNER NAME or NUMBER field and press .

4. An alpha-numeric utility will appear allowing the user to select

text using the arrows buttons and the button.

5. To lock the Owner information so that it can not be

overwritten, press the CONF (confirmation) button.

6. Press BACK or EXIT when finished.

MO270-EU-EN-v2.1 11/12

Measurement Screen Menus

F1 - MENU

Press the F1 MENU button from the main analyzer display to open the sub-menu list:

WME/REL

The WME/REL menu allows for selecting either pin measurements, displayed as a ‘wood

moisture equivalent %’ (WME), or pin-less measurements displayed as a relative measurement

(REL) using the non-contact sensor. When highlighted, use the ENTER button to toggle

WME and REL.

ALARM

1. Navigate to the ALARMS box and press the button.

2. Alarm limits can be set manually by entering a numerical value or by using a measurement

(scanned) value.

3. To set an Alarm limit manually, use the right arrow to scroll to the Alarm limit (%) box and

press . An arrow will appear under one of the digits, use the up and down arrow buttons

to change its value if desired. Use the left and right

arrows to choose another digit to edit. When finished

editing, press the button store the setting.

4. To use the real time measurement as the alarm limit,

use the arrow keys to scroll over to the SCAN box (for

either the HIGH or the LOW Alarm limit). When the

SCAN box is highlighted, press the button to

automatically transpose the real time measurement to

the Alarm limit value. Important: Press the CONF key to the lock the reading in place.

5. Note that the High Alarm limit cannot be set lower than the Low Alarm limit and the Low

Alarm Limit cannot be set higher than the High Alarm limit.

6. To turn an Alarm ON or OFF: Use the arrow buttons to move the cursor to the Alarm limit

OFF box. Press the button to toggle between ON (OFF) or OFF (OFF).

7. To set the audible Alarm beeper ON or OFF: Navigate to the SOUND ON or OFF box.

Select the desired condition and the press .

8. Press F3 to store the values and to exit this mode.

9. Refer to Alarm Operation instructions later in this instruction manual.

WOOD TYPE

The WOOD TYPES menu allows for selecting various species of wood which are arranged in

groups (1 through 8) according to hardness. Refer to Appendix A for the timber lists and

associated group number settings. Select a group number that corresponds to the wood type

under test using the arrow keys and the enter key in the Wood Type menu.

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