USER GUIDE Desktop Indoor Air Quality Monitor Model CO100 Introduction Congratulations on your purchase of this Extech Meter. The Carbon Dioxide (CO2) Monitor is designed for air quality control and health control by measuring Carbon Dioxide level in areas where CO2 could be a concern. The measured CO2 value in ppm (parts-per-million), Temperature, Humidity and Time will be displayed on the LCD along with three CO2 status indications: Good (0 to 800ppm), Normal (800 to1200ppm), Poor (>1200ppm). An acoustic alarm sounds when the CO2 level exceeds a defined level. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Operation 1. Power button (rear) Turns the unit on or off. 2. HOLD button (rear) Freezes the current reading in the display. 3. °C/°F button (rear) Selects °C or °F 4. Clock button (rear) Press and hold this button for 2 seconds to enter into clock mode. Press the “▲” or “▼” button to adjust the flashing digits. Press the clock button again to step through the settings (day:month:year;hour:minute). Press the “ESC” button to exit the clock setting mode. 5. Alarm button icon appears on LCD Press the Alarm button once to activate the Alarm mode. The display. If the measured value exceeds the defined value, the alarm will sound and the display will flash. Press the button again to exit the Alarm mode. Alarm Value Setting Press and hold the ALARM button for 2 seconds to enter into setting mode. The will flash. Press the ▲or ▼ button to increase or decrease the value. Press the ESC button to exit the setting mode. icon “GOOD-NORMAL” and “NORMAL-POOR” Value Setting In the Alarm Value Setting mode, press the ALARM button to set the GOOD NORMAL threshold value. “GOOD NORMAL” will appear in the display. Adjust the value as needed. Press the ALARM button again to set the NORMAL POOR threshold value. “NORMAL POOR” will appear in the display. Adjust the value as needed. Press the ESC button to exit the mode. 6. ▲button Press this button to increase a value. Press the “ESC” button to exit the function. 7. ▼button Press this button to decrease a value. Press the ESC button to exit the function. 8. MAX MIN button Press the button once, the ”MAX” icon appears and the Maximum measured value of CO2, temperature and humidity will be displayed on the screen. The display will be updated only if a higher value is measured. Press this button again, the ”MIN” icon appears and the Minimum measured value of CO2 temperature and humidity will be displayed on the screen. Press ESC button to exit the function. 2 CO100-EU-EN v2.1 7/13 9. ESC button Press this button to exit the current mode. 10. AC adaptor socket 11. Power ON LED Backlight Touch the button area below the LCD and the backlight will turn on. It will turn off automatically after 20 seconds of inactivity. Press “ESC” button at any time to exit the function. Maintenance 1. The meter should be cleaned with a damp cloth and mild detergent when necessary. Do not use solvents or abrasives. 2. Store the meter in an area with moderate temperature and humidity. Specifications Function Range Resolution Accuracy CO2 0 to 9999ppm 1ppm ±75 ppm or ±5% of reading Temperature 23 to 122°F (-5°C to 50°C) 0.1° ±1.5°C/2.7°F Humidity 0.1 to 90.0% 0.1% ±5% Display LCD with backlighting Sampling Interval: 2 seconds Overload Indication: “-OL-” Sensor Type CO2: NDIR (non-dispersive infrared) technology Operating Conditions -5°C to 50 °C (23 oF to 122 oF) at < 90 % RH Storage Conditions -5°C to 50 °C (23 oF to 122 oF) at < 90 % RH Power Supply 110V～220V AC, output 6.0V DC ≥ 500mA (supplied) Dimensions / Weight 117x102x102mm (4.6x4x4”); 204g (7.2 oz.) Copyright © 2013 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form. www.extech.com 3 CO100-EU-EN v2.1 7/13