Extech Instruments MO297 Manual de usuario

User's Guide

Pinless Moisture/Humidity Meter

with IR Thermometer + Bluetooth

Model MO297

MO297-EU-EN V4.3 4/13

Introduction

Congratulations on your purchase of the Extech MO297 with MeterLink Bluetooth capabilities for use

with FLIR infrared cameras. This Pinless Moisture Meter incorporates a Patented Built-in IR

Thermometer and 20 Point Memory. Monitor moisture in wood and other building materials with no

surface damage with the Pinless Moisture sensor (Pin-type Moisture Probe included). Measure

Humidity and Air Temperature with built-in probe plus non-contact InfraRed Temperature with patented

IR design. Advanced functions provide Grains per Pound, Dew Point and Vapor Pressure calculations.

This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable

service.

Meter Description

1. IR temperature sensor

2. Laser pointer

3. Humidity sensor

4. Temperature sensor

5. LCD display

6. Relative Humidity button

7. Mode/Zero Button

8. IR thermometer button

9. Alarm set button

10. Alarm adjust down / SEND button

11. ON/OFF power button

12. Remote pin probe input jack (bottom)

13. Battery compartment (rear)

14. Alarm adjust up / Bluetooth button

15. Moisture/Relative button

16. Protective cap

LCD Display

1. MIN MAX – Minimum and maximum value

2. HIGH LOW – Alarm limits

3. INT EXT – Internal/External probe

4. mBar – Vapor pressure

5. kPa – Vapor pressure

6. GPP – Grains per Pound

7. g/kg – Grains per kilogram

8. MOIST – Moisture mode

9. RH% - Relative Humidity mode

10. COND – Condensation mode

11. APO – Auto power off

12. DEW – Dew Point temperature

13. C/F – Temperature units

14. - Low battery

15. MEM - Memory location indicator

16. - Laser pointer On

17. - Bluetooth On

REL

123

MO297-EU-EN V4.3 4/13

Safety

Use extreme caution when the laser pointer beam is on

Do not point the beam toward anyone's eye or allow the

beam to strike the eye from a reflective surface

Do not use the laser near explosive gases or in other

potentially explosive areas

Features

Quickly indicates the moisture content of materials with Pinless technology without damaging

the surface;

Optional remote Pin-type probe (MO290-P) allows for moisture readings at different

penetration levels (3ft/0.9m cable length);

Easy to read, large dual display with backlit feature;

Simultaneously displays % moisture of wood or material being tested and Air Temperature, IR

Temperature, or Humidity

Designed with patented IR design to measure non-contact surface temperature; 8:1 distance to

spot ratio with 0.95 fixed emissivity

Built-in Humidity/Temperature probe measures Relative Humidity,

Air Temperature plus Grains Per Pound (GPP) and Dew Point (DP)

Ambient and Surface Vapor Pressure

Automatic calculation of differential Temperature (IR - DP)

Min/Max and Data Hold

20 point internal memory

Auto power off and low battery indication

Battery Replacement

1. Turn off the meter.

2. Remove one Philips head screw and lift off the rear battery cover.

3. Replace the 9V battery.

4. Secure the rear battery cover.

You, as the end user, are legally bound (EU Battery ordinance) to return all used

batteries, disposal in the household garbage is prohibited! You can hand over your

used batteries / accumulators at collection points in your community or wherever batteries

/ accumulators are sold!

Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the

end of its lifecycle

MO297-EU-EN V4.3 4/13

Operation

Powering the meter

1. Remove the RH sensor protective cap before use.

2. Press the power button to turn the meter on.

3. If the symbol appears or the meter does not turn on, replace the battery.

Note: Operation with Bluetooth enabled reduces battery life to less than 8 hours. Using an external

AC adaptor is recommended when the meter will be used for monitoring over a long period of time.

Humidity (Dew point, GPP, g/kg) Measurements

1. Press the power button to turn the meter on.

2. Press the RH button

3. Relative Humidity will be displayed in the primary display and the temperature will be displayed

in the secondary display.

4. Press the up or down arrow button to change the temperature units.

5. Press the MODE button to display the DEW point.

6. Press the MODE button to display GPP (°F) or g/kg (°C). Press the ▲or ▼button to

toggle between GPP or g/kg.

Pinless Moisture Measurements

1. Press the power button to turn the meter on.

2. Press the MOIST button to select Moisture measurement.” MOIST”, and “INT” (internal pinless

sensor) will appear in the display.

3. Hold the meter so that the rear sensor is away from any surface or your hand. The reading

should be near 0.0. If not, press and hold the ZERO button for more than 2 second and the

ZERO icon appears.

4. Place the rear sensor on the surface of the material to be tested and read the relative moisture

content.

Pin Type Moisture Measurements

1. Connect the external pin probe to the jack on the bottom of the meter.

2. Press the power button to turn the meter on.

3. Press the MOIST button twice to select Moisture measurement.” MOIST”, and “EXT” (external

pin probe) will appear in the display.

4. Press the probe pins into the material and read the % moisture content in the display.

MO297-EU-EN V4.3 4/13

Infrared Temperature Measurements

1. Press the power button to turn the meter on.

2. Press the IRT button to enable the IR thermometer and the laser pointer. The laser pointer icon

will flash while the mode is active.

3. Press the ▲or ▼button to change the temperature units

4. Aim the laser pointer at the surface to be measured and read the surface temperature in the

secondary display.

5. Release the IRT button. The last temperature measured and the laser icon will remain on the

display for approximately 10 seconds before returning to ambient temperature measurement.

IRT MAX MIN display:

The meter can be set to display only the maximum or minimum temperature measured during an IR

scan.

1. With the meter in the IR hold mode, press the MODE button. “MIN” will appear in the

display.

2. Press the IRT button to enable the IR thermometer. The meter will display the minimum

temperature measured and will update only when a lower temperature is measured.

3. Press the MODE button twice to enable the MAX mode and proceed as stated above for the

maximum temperature.

4. The MAX or MIN temperature is not stored when the function is exited. The unit

automatically exits MAX/MIN mode after approximately 10 seconds.

IR Field of View

Ensure that the desired target is larger than the spot size. As the distance from an object increases,

the spot size of the area measured by the meter becomes larger. The meter’s field of view ratio is

8:1, meaning that if the meter is 8 inches (cm) from the target, the diameter (spot) of the object

under test must be at least 1 inch (cm). Refer below to the field of view diagram.

WARNING: Do not directly view or direct the laser pointer at an eye. Low power visible lasers

do not normally present a hazard, but may present some potential for hazard if viewed directly for

extended periods of time.

1” @ 8”

2” @ 16”

20mm @ 160mm

40mm @ 320mm

MO297-EU-EN V4.3 4/13

Condensation Mode

The Condensation feature alerts the user when the surface temperature as measured by the IR

thermometer is close to or has reached the Dew Point temperature.

1. Press the power button to turn the meter on.

2. Simultaneously press the MOIST and RH buttons. The “COND” icon will appear.

3. Point the meter at a surface, press the IRT button to measure the surface temperature. The

small display will indicate the IR surface temperature and the large display will indicate the

difference between the IR temperature and the Dew Point temperature.

4. The meter will then report the potential for condensation on that surface in the following

manner

If the temperature of the IRT is more than 14°C (25°F) above the Dew Point, the

temperature difference shall be displayed, with no other warning.

If the temperature of the IRT is 3-14°C (5-25°F) above the Dew Point, the temperature

difference shall be displayed, along with a standard Condensation Indicator icon. The meter

shall beep once to confirm that the reading is in the risk area.

If the temperature of the IRT is less than 3°C (5°F) above the Dew Point, the temperature

difference shall be displayed, along with a flashing Condensation Indicator icon. The meter

shall beep twice to confirm that the reading is in the high-risk area.

5. Press the RH button to exit the mode.

Vapor Pressure Mode

Ambient Vapor Pressure

1. With the Condensation mode active, press the MODE button to display the Vapor Pressure in

mBAR (°F) or kPa (°C). Press the ▲or ▼button to toggle between mBAR or kPa.

2. Press the MODE button to exit the Vapor Pressure mode.

Surface Vapor Pressure

1. Enter the Vapor Pressure mode as described above.

2. Press the IRT button and aim the laser pointer at the surface to be measured to display the

Surface Vapor Pressure in mBAR (°F) or kPa (°C).

Alarm High and Low Limit Setting

High and Low alarm points can be set for Humidity and Moisture measurements.

Humidity Alarm Set Procedure:

1. With RH% displayed, simultaneously press the RH and MODE buttons.

2. The “HIGH” icon will appear on the display.

3. Press the ▲or ▼button to set the high limit desired.

4. Press the STORE/ALARM SET button to save the value and proceed to the LOW set value.

5. With the “LOW” icon in the display, Press the ▲or ▼button to set the low limit desired.

6. Press the STORE/ALARM SET button to save the value and to return to the normal mode.

7. If the humidity measurement is lower than the low alarm setting or higher than the high alarm

setting, the meter will beep once every second.

MO297-EU-EN V4.3 4/13

Moisture Alarm Set Procedure:

1. With MOIST displayed, simultaneously press the MOIST and MODE buttons.

2. The “HIGH” icon will appear on the display.

3. Press the ▲or ▼button to set the high limit desired.

4. Press the STORE/ALARM SET button to save the value and proceed to the LOW set value.

5. With the “LOW” icon in the display, Press the ▲or ▼button to set the low limit desired.

6. Press the STORE/ALARM SET button to save the value and to return to the normal mode.

7. If the moisture measurement is lower than the LOW alarm setting, the meter will beep once

every second

8. If the moisture measurement is higher than the HIGH alarm setting, the meter will beep

continuously.

Data Memory Storage

Storing Readings:

1. With the data to be saved in the display, press the STORE button for 2 seconds until the unit

beeps. The data will be saved to the memory location indicated. The numeric display above

the MEM icon will then advance to the next location.

2. When the 20 memory locations are full, the unit will overwrite old saved readings starting with

memory location 01.

Recalling Stored Readings:

1. Simultaneously press and release the ▲and ▼buttons to display stored readings. The

numeric display above the MEM icon will flash and the data stored in that location will be

displayed.

2. Press the ▲or ▼button to scroll through the memory locations.

3. To return to normal operating mode, press the STORE button.

Clearing Stored Data:

1. To clear stored data, press and hold the ▲and STORE buttons simultaneously until CLR

appears on the display.

Auto Power Off

The meter will enter a sleep mode after 30 minutes of inactivity. The meter will emit a warning beep

15 seconds before shutting down.

To disable the APO feature, press the MODE button when turning the meter ON. The “APO” icon

will not appear, indicating it is disabled.

MO297-EU-EN V4.3 4/13

MeterLink™ Bluetooth Communication

This meter includes a Bluetooth module designed to communicate with the FLIR T/B200, T/B300,

T/B360, T/B400 or i/b60 cameras. The combination of a moisture meter and an IR camera is used

for analysis and documentation of moisture in buildings.

Setup

1. Enable the MO297 Bluetooth by pressing and holding the ▲button for two seconds. The

Bluetooth icon will appear in the display.

2. Pair the meter to the camera by following the “Pairing Bluetooth Devices” section in the thermal

camera manual.

3. Once paired, the data from the MO297 will be continuously displayed and updated on the

camera display.

4. Readings stored into memory can be recalled and applied to live thermal images.

Image Editing

A single or series of readings can be applied to a single image by saving and entering the image

edit mode. Data stored in the MO297 memory can also be added to the image.

MO297

MO297-EU-EN V4.3 4/13

T/B200, T/B300, T/B360, T/B400 Image Edit

1. Entering the camera Preview mode (single press of the image store button).

2. In Preview mode real time data or recalled memory data is no longer streamed to the image

but it is displayed in a preview box.

3. The data in the box can be applied to the image by pressing (3 seconds) the MO297 ▼/

SEND button or the ADD button in the camera’s preview box.

4. Data applied to the image in this way will be enumerated.

i/B60 Image Edit

1. Press the trigger to store the image

2. Recall the image using the recall archive button (arrow in a box)

3. The real time data or recalled memory data is no longer streamed to the image but it is

displayed in a preview box.

4. The data in the box can be applied to the image by pressing (3 seconds) the MO297 ▼/

SEND button or the camera’s trigger

5. Data applied to the image in this way will be enumerated.

Typical Moisture Measurement and Documentation Procedure

1. Using the camera, identify any potential damp areas behind walls and ceilings.

2. Use the Moisture meter to measure the moisture levels at various suspect locations that may

have been found.

3. When a spot of particular interest is located, store the moisture reading in the moisture meter’s

memory and identify the measurement spot with a handprint or other thermal identifying

marker.

4. Recall the reading from memory. The moisture meter will now continuously transmit this

reading via Bluetooth.

5. Use the camera to take a thermal image of the area with the identifying marker. The stored

data from the moisture meter will also be saved on the image.

FCC Part 15

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:

—Reorient or relocate the receiving antenna.

—Increase the separation between the equipment and receiver.

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

connected.

—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.

MO297-EU-EN V4.3 4/13

Specifications

Function Range Accuracy

Pinless Moisture 0 to 99.9 Relative only

External - Moisture in

wood 6-99 % ± 5%

External - Moisture in

building materials 13-99 % ± 5%

Pinless Depth Up to 0.75” (19mm)

0 to 10% ± 3%RH

11 to 90% ± 2.5%RH

RH Measurement

91 to 100% ± 3%RH

Air Temperature -20 to 170°F (-29 to 77°C) 3.6F (2.0C)

IR Temp -4 to 31F 9F

32°F ± 2°F

33 to 392F Greater of 3.5% or 9F

-20 to-1C 4.5C

0C 1C

1 to 200C Greater of ±3.5% or ± 4.5°C

Display 3-digit primary display, 4-digit secondary display

Vapor Pressure 0 to 20.0kPA, calculated from temperature and RH measurements

Dew Point -30 to 100°C (-22 to 199°F)

Mixing Ratio 0-999GPP (0 to 160g/kg)

Sample Rate 2 per second

Backlight White LED

Memory 20 point memory

Bluetooth range 32 feet (10 meters) approximately

Operating Temperature 4 to 43°C (40 to 110°F)

Storage Temperature -30 to 60°C (-14 to 140°F)

Operating Humidity 90%, 0-30°C (32-86°F), 75%, 30-40°C (86-104°F),

45%, 104-122°F (40-50°C)

Storage Humidity 90%

Power Supply 9V battery

Auto Power Off (APO) After 30 minutes (nominal) inactivity. The APO function can be disabled

by the user.

APO Quiescent Current 50µA maximum

Dimensions 165x70x38mm (6.5x2.8x1.5’)

Weight 210g (7.4oz)

ISO-9001 Certified

www.extech.com

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