User's Guide CO2 Monitor and Datalogger Model CO210
Introduction Congratulations on your purchase of this Model CO210 Carbon Dioxide Meter. This meter measures and datalogs CO2 level, air temperature, humidity, date and time. With visible and 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. Meter Description Meter 1. CO2, Temp and RH sensors (rear) 2. LCD display 3. Controls 1 2 3 LCD Display 1.
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 CO2, temp., humidity, date and time. The air quality level is 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.
ALARM The meter features an audible alarm which will give warnings when the CO2 concentration exceeds the set limit. There are two settable limits, an upper limit that initiates the alarm and a lower limit to stop the alarm. The meter emits beeps and displays the fan icon on the display when the CO2 level goes over the upper limit. The audible alarm can be stopped by pressing any key or it automatically stops when CO2 reading falls below the lower limit.
P1.3 CO2 ALARM: HIGH ALARM P1.3 is used for setting the CO2 upper limit for the BEEPER ALARM level. The current set value will be blinking on the display. Press the LOG/▲or MIN/MAX▼ button to increase or decrease the value. Each press adjusts in 100ppm increments. The alarm range is 1000 to 5000ppm. When the value has been set, press the SET button to confirm the limit and to proceed to P2.0 or press the ESC button to return to P1.0. CO 2 P2.0 TEMPERATURE SCALE Press the LOG/▲ button in P1.
P4.0 RESET Press the LOG/▲button in P1. 0 three times to access P4.0 to reset the meter to default settings. Press the SET button and the meter will go to P4.1 with a blinking “No”. Press the LOG/▲ to switch the status then press either the SET button to save the settings or the ESC button to exit without saving the settings. If “Yes” is selected the meter defaults to the following settings: Parameter Default P1.1 700ppm P1.2 1000ppm P1.3 1000ppm P2.1 C ° P4.1 No P5.
Calibration CO2 CALIBRATION The meter is calibrated to a standard 400ppm CO2 concentration at the factory NOTE: When the accuracy becomes a concern or after a year of use, return the meter to Extech for calibration. CAUTION: Do not calibrate the meter in an atmosphere of unknown CO2 concentration. ABC (Automatic Baseline Calibration) ABC (Automatic Baseline Calibration) establishes a baseline calibration to eliminate the zero drift of the infrared sensor.
Maintenance CLEANING AND STORAGE 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 ±(5%rdg +50ppm) Temperature -10 to 60°C 14 to 140°F 0.1° ±0.6°C/0.9°F Humidity 0.1 to 99.9% 0.
TROUBLESHOOTING Can’t power on: Check whether the adaptor is properly plugged in. Slow response: Check whether the air flow channels on the rear of the meter are blocked. "BAt” and green LED keep flashing: The adaptor output voltage is too high or too low. Please use the adaptor with correct output.
CO2 Levels and Guidelines Non-Enforced Reference levels: 250 - 350 ppm – background (normal) outdoor air level 350- 1,000 ppm - typical level found in occupied spaces with good air exchange. 1,000 – 2,000 ppm - level associated with complaints of drowsiness and poor air. 2,000 – 5,000 ppm – level associated with headaches, sleepiness, and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present.
