Co2meter XT-10 Instruction Manual - User Manual

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Table of Contents

Introduction ............................................................................ 1

Before you Start .................................................................... 1

Button Functions ................................................................... 2

Reading the Display .............................................................. 3

Using the Monitor .................................................................. 5

Carbon Dioxide Levels and Guidelines ................................. 7

Specifications ........................................................................ 8

Software Installation .............................................................. 9

Software Application ............................................................ 12

Data Logging ....................................................................... 13

Automatic Baseline Calibration

...........................................

Manual Calibration

..............................................................

...........................................................................

Carbon Dioxide Monitor

Instruction Manual

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Introduction

This rechargeable desktop CO2 monitor and data logger is

designed to measure carbon dioxide, temperature, and humidity

making it ideal for measuring indoor air quality in homes,

businesses, offices, and classrooms. Poor air indoor air quality

can lead to drowsiness, inability to concentrate, and even illness

(see “Sick Building Syndrome”).

Features

•

Large display shows CO2, Temp & %RH levels in real time.

•

NDIR CO2 sensor for fast, accurate, and stable readings.

•

Visual and audible alarm functions.

•

Built-in data logger with free software (Windows only).

•

Fresh air or automatic baseline calibration.

Package Contents

•

Monitor

•

110-220VAC to 5V DC Power Adapter

•

USB Cable

•

Instruction Manual

Before You Start

1. This monitor contains sensors and microprocessors

that use precision electronics. It must be kept away
from water, heat, fire, combustible liquids and strong
electromagnetic interference to prevent damage.

2. For accurate results do not block the air sampling

inlets. Avoid strong or hot winds blowing towards the
air sampling inlets.

3. Wet cotton cloth or 95% alcohol should be used to

clean the monitor. Do not use abrasive agents or
corrosive liquid for cleaning to avoid damage or
scratching the surface.

4. Do not dismantle or modify the monitor.

5. This device can be powered and charged

simultaneously using either a PC USB port or the
supplied 5.0V DC power adapter. Only use the power
adapter that comes with the monitor.

Button Functions

Power Button – turns the power ON / OFF

°C/°F

Up Arrow Button – change between degrees Fahrenheit and

Centigrade. When MODE pressed, used as up arrow or to

increase the value.

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ALM

Left Arrow Button - turns alarm ON / OFF. When

MODE pressed used as left arrow.

DAY: day

MIN: minute

SEC: seconds

REC: record starts

CO2

PPM

Right Arrow Button - when MODE pressed,

used as right arrow.

REC

Down Arrow Button - starts manual data

logging. When MODE pressed, used as down

arrow or to decrease the value.

MODE

MODE Button - hold down for 2 seconds to enter SETTINGS.

Reading the Display

1. Carbon dioxide display area

: Battery level indicator

PPM: Concentration units (parts per million)

CO2: Chemical symbol for carbon dioxide

MON: month

MON-DAY

MIN-SEC

REC

YEAR

℃ ℉

%RH

HOUR

2. Temperature display area

℃

℉

: degree Centigrade, degree Fahrenheit

YEAR : year

HOUR: hour

:Sound alarm enabled

3. Humidity display area

%RH: humidity unit

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Using the Monitor

Power and Charging

The first time you use the monitor, use the wall adapter or a
powered PC port and the USB cable to plug it in.
The monitor has a built-in rechargeable battery. When the screen
displays low battery, it should be recharged. The monitor can be
used while charging.

Turning the Monitor ON / OFF

Press the power button to turn the power on or off. When
powered on, the display will show a 30 second count down.
After the countdown is complete, you can change settings.

Setting the CO2 Alarm Level, Date and Clock

Press the MODE button for two seconds to begin. The first
setting is the CO2 alarm level. Press the left and right arrow
buttons to select the digit to change. The selected digit will
flash. Press the up and down arrows to change it.

Press the MODE button again for 2 seconds to move to the
date and clock values. Again, use the MODE button to
change between values and the up and down arrows to
change them.

When complete, press the MODE button to save

your changes and return to the normal display. The CO2 Alarm

Level, Date and Clock can also be set using the software. See

instructions at the end of this manual.

Using the CO2 Alarm

The CO2 alarm can warn you if carbon dioxide levels are too
high. If the CO2 level goes over the level you set, a buzzer
will sound. Press the left arrow button to turn the buzzer on
or off.

The factory default carbon dioxide concentration alarm value
is 2,000ppm. See below for recommended CO2 levels

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Carbon Dioxide Levels and Guidelines

CO2 Level

Description

400ppm

Normal outdoor air level.

400-1000ppm

Typical level indoors with good ventilation.
NOTE: If CO2 levels are low when building is
sealed and occupied, check for over-
ventilation (too much fresh air = energy
wasted).

1,000ppm

ASHRAE and OSHA recommended
maximum level in a closed room. Considered
maximum comfort level in many countries.

> 1,200ppm

Poor air quality - requires ventilation

2,000ppm

According to many studies this level of CO2
produces a significant increase in
drowsiness, tiredness, headache lower levels
of concentration and increased likelihood of
spreading respiratory viruses like colds, etc.

＞

5,000ppm

OSHA and NIOSH first threshold for safety.
maximum allowed concentration within a 8
hour working period

Specifications

Carbon Dioxide Range: 0

～

9999PPM

Accuracy: ± 70ppm ± 3% of reading (0

～

5,000ppm

Resolution: 1ppm

Response time: 1 second

Temperature Measurement: -10 to 70

℃

(14

～

158

℉

)

Temperature Resolution: 0.1

℃

℉

Temperature measurement Accuracy: ± 0.3

℃

(10

～

℃

)

Humidity measurement: 0

～

99.9%RH

Humidity Resolution: 0.1%

Humidity Accuracy: ±3% (from 10

～

90% RH)

Power: 3.7V Lithium Battery

Data Log Memory: 12,700 Data Points

Working Conditions: 0

～

℃

～

85%RH (no condensation)

Storage Conditions: -20

～

℃

, 0

～

90%RH (no condensation)

Guidelines are average CO2 levels over time.

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Software Installation

Download software at

CO2Meter.com/pages/downloads

Download the XT-10 Setup file to your Windows PC.

Double-click the file to start the installation. Click “Next” to

begin:

Accept the default installation folder on your hard drive or

click “Browse” to create a new one.

Click “Next” after confirmation and click “Next” again to start

the installation.

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After installation is complete click “Close”. The software is

now installed.

Software Application

Connect / Disconnect Monitor

Use the Micro USB cable to connect the computer and

the CO2 monitor. Click to connect. The following

prompt indicates successful connection. Click

disconnect.

Setting the Date / Clock

After connecting to the computer, click “Set Time” to

automatically set the clock. The monitor will sync with the

computer’s built-in clock.

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Data Logging

Option 1: Tethered Data Logging

Tethered data logging lets you record CO2 levels while
connected to the PC. This option is useful for testing the logging
functions or to creating several data logs at one time.
Click “Set Param” to setup the data logging parameters. Set the
parameters as appropriate for your application. Click the
“Immediately” button to tell the software you want to log data from
the software, then click “OK” to begin data logging.

While logging, “REC” will flash on the display. The flashing
frequency is the same as the recording interval you set in the
“Param” screen. When you are done data logging, click “Stop
Recording”. The data log cannot be observed until it is
downloaded to your PC. To download, click “Data Download”
and the following window pops up.

Save the data as a file to your PC as shown here:

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After the data log is saved, it can be reviewed using the
graphing function as shown here:

Option 2: Remote Data Logging

Remote data logging lets you place the monitor in a room,
start recording, then come back later and retrieve the
monitor and download the data. This is useful for measuring
air quality in a room over time.

Start by connecting the monitor to  a  PC and running the
software.  After connecting  click  the  “Set  Param”  button  to
enter the parameter setting interface as shown in the figure
below:

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Click “Set Param” to setup the data logging parameters. Set the
parameters as appropriate for your application. Click the “Manual”
button to tell the software you want to log data later by pressing the
REC button on the monitor. Click “OK” to save your settings, then
disconnect the monitor from your PC.

When you are ready to record, press the REC button on the
monitor. It will log CO2 levels according to the parameters
you set in the software. “REC” will flash on the display. The
flashing frequency is the same as the recording interval you
set in the “Param” screen.

To save your data log, connect the monitor to your PC, start
the software and click “Data Download”. You can then view
the data log as a graph on your PC

NOTE: Every time you click “Set Param” the previously
logged data in the monitor’s memory is cleared. Therefore,
you should get in the habit of saving your data files every
time you create one.

Automatic Baseline Calibration

Automatic baseline calibration is useful in areas that are
regularly unoccupied and CO2 level return to 400ppm every
few days. ABC is turned off by default. To enable ABC:

Step 1

: Turn the power off.

Step 2

: While pressing the

and

buttons at the same

time, press the “Power” button.

Step 3

: Release the power button, then release

and

. The screen will show 0PPM (ABC off) or 1PPM (ABC

on).

Step 4

: Use the

buttons to change between ABC

off (0PPM) and ABC on (1PPM).

Step 5

: Press the MODE button to confirm. The display

will flash 30 if ABC is turned off or 31 if ABC is turned on.

Step 6

: If the next screen shows 1PPM, this indicates

the change was successful. If it shows 0PPM, the
change failed.

Step 7

: Press MODE again to restart the monitor normally.

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Manual Calibration

Manual calibration uses fresh, outdoor air to calibrate the monitor
to 400ppm.

Step 1

: Turn the power off. Put the monitor in fresh air for 5-10

minutes so the interior of the monitor is filled with fresh air.

Step 2

: While pressing the

and

buttons at the same time,

press the Power button.

Step 3

: Release the Power button first, and then release the

and

buttons. The screen will show 400ppm.

Step 4

: Press the MODE button to start the manual calibration

process. The screen should show approximately 400ppm.

Step 5:

Walk away from the monitor so that your breath does not

influence the manual calibration. Manual calibration will take
between 5-10 minutes to complete.

Step 6:

After calibration is complete, read the display. “1” means

manual calibration was a success. “0” means it failed – usually
because the CO2 level was not stable during calibration. If it fails,
retry the manual calibration again. If it fails repeatedly, contact us
for support.

Step 7:

Press the MODE button to return to normal operation.

Contact Us

We are here to help!

For information or technical support, please contact us.

support@co2meter.com

(386) 256-4910 (Technical Support)

(386) 872-7665 (Sales)

www.co2meter.com

Address:
CO2Meter, Inc.
131 Business Center, A3
Ormond Beach, FL 32174
USA

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