Extech MO270 User guide

User Guide

Wireless Moisture Analyzer

Model MO270

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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 noninvasively (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.

Features

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

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

3. Wireless sensor affixes to 1.2m (4 ft) 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

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Analyzer Side Views

1. Sensor release buttons

2. Ports reserved for future options

3. RJ-45 remote probe port

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

5. Mini-SD card slot

6. Sensor (transmitter) 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 (used only when shipping or transporting the unit)

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

7. Analyzer (Receiver) unit

4 5 6

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Display Icons

ICON Name Function

(black)

(red)

(gray)

(blue)

(gray)

(orange)

(blue)

(black)

(blue)

Low Alarm set Audible Low Alarm is set and active

High Alarm set Audible High Alarm is set and active

Low Alarm set Visual-only Low Alarm is set and active

High Alarm set Visual-only High Alarm is set and active

Low Alarm triggered Low Alarm has been triggered

High Alarm triggered High Alarm has been triggered

Transmitter ON

Active pairing

(RF) Wireless

(RF) wireless

Transmitter is ON but not communicating with peripheral device via Bluetooth

Active Bluetooth

communication between

receiver and peripheral device

Wireless transmitter is ON; sensor communication is INACTIVE

Wireless transmitter is ON; sensor communication is ACTIVE

REL mode Reading moisture using non-invasive sensor

%WME mode Reading moisture using ‘pin’ sensors

External probe Reading measurement from external probe

Internal probe Reading measurement from internal probe

(red)

(green)

(orange)

Recording Unit is actively recording (on-screen)

Sensor (transmitter) battery

Analyzer (receiver) battery

Sensor battery (shown here fully charged)

Analyzer battery (shown here minimally charged)

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Setup

Getting Started

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.

To switch the analyzer ON, press and hold the power button navigation buttons will illuminate, the speaker will chirp, and the display will switch ON.

To power OFF, press and hold the power button

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

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

The center 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 Analyzer switched OFF, 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

 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.

ENTER button is used to select the highlighted menu function and for

readings can be viewed and organized)

for 3 seconds; the

for 3 seconds.

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.

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

The charged and progressively emptier as the batteries weaken.

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Operation

Basic Operation for Pin Measurments

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

3. If the

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

b) Press

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 Measurments

icon is displayed, proceed as follows to switch to the

key for 3 seconds to switch the analyzer ON.

, select WME, press and then press EXIT.

icon.

1. Press and hold the

2. If the

3. Press and hold the

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

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

8. Read the measurement values on the display.

icon is displayed, proceed as follows to switch to the

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

b) Press

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

of moisture present.

, select REL, press and then press EXIT.

key for three seconds to switch the analyzer ON.

icon.

key for three seconds to switch the analyzer OFF.

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