Extech CO210 Operating Manual

User's Guide

CO2 Monitor and Datalogger

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Model CO210

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Introduction

Congratulations on your purchase of this Model CO210 Carbon Dioxide Meter. This meter
measures and datalogs CO
audible alarms, this is an ideal instrument for indoor air quality (IAQ) diagnosis. This meter is
shipped fully tested and calibrated and, with proper use, will provide years of reliable service.

2 level, air temperature, humidity, date and time. With visible and

Meter Description

Meter

2, Temp and RH sensors (rear)

1. CO

2. LCD display

3. Controls

LCD Display

2 concentration in ppm

1. CO

2. Date and Time

3. Air Temperature

4. % Relative Humidity

Symbols

ppm CO

GOOD CO

NORMAL CO

POOR CO

2 value

2 air quality level

2 l air quality level

2 air quality level

Air Temp Air Temperature

Humidity % Relative Humidity

°C or °F Celsius or Fahrenheit

MAX/MIN Maximum or Minimum reading

Controls

SET Enters setup mode.

Saves and finishes settings.

ESC Exits setup page/mode.

Terminates calibration / Datalogging

RESET Press to clear the MAX/MIN. -

Terminates during RH calibration.

LOG ▲ Selects mode or increases value in setup

Start Datalogging

MIN/MAX▼ Activates MAX, MIN function.

Enters CO

2

calibration with

SET

1

2

3

1

and ▲

MAX

MIN

TWA

STEL

GOOD

NORMAL

CO

2

Year Month Date

Hour Min

Air Temp.DP WB

POOR

o

234

Humidity

VENT.R

cfm/p

lps

ppm

%

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Operation

POWER ON

Plug in the adaptor and the meter turns on automatically with a short beep. If the voltage is
too high or low, “bAt“ will display on the LCD and an LED will flash.
The LCD will display current CO
displayed as well

TAKING MEASUREMENT

The meter starts measurements when powered on and updates readings every second. If the
operating environment changes (ex. from high to low temp.), it takes 2 minutes for the CO
to respond and 10 minutes for RH change.

NOTE: Do not hold the meter close to your mouth or any other source of CO

MAX/MIN

In the normal mode, press the MIN/MAX button to see the minimum and maximum of CO2,
Temperature and Humidity. Each press of MIN/MAX button will sequence through the MIN, MAX
display and then returns to normal mode.

Press and hold the RESET button for more than 1 second to clear the minimum and maximum
value from memory.

DATA LOGGING

The meter can record readings of CO
monitoring. The memory capacity is 15999 points (5,333 RH, Temperature and CO
The sample rate is adjustable from 1 second to 4 hours 59 minutes and 59 seconds.

After the sampling rate is selected, press the LOG button for 2 seconds in the normal
mode to start logging. The green LED light blinks to indicate the logging status and the LCD
main display will alternate between real time CO
the real time temperature, humidity and clock.

To terminate data logging, press the
and the LCD ma in disp lay will alternate between real time CO
the ESC button for 2 seconds again and it the meter returns to normal measurement mode.

Minimum and Maximum recall continues working during logging.

The memory is cleared whenever a new logging session is activated.

2

, temp., humidity, date and time. The air quality level is

2.

2,

, temperature and humidity for long time environment

2

value and “rEC”. The lower displays are

ESC

button

” for 2 seconds. The LED will stops blinking

2

value and “End”. Ho ld do wn

2

2 sensor

records) .

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