6. HISTORY:
Bar graph displays indicate the status of CO2 records up to 24 hours (Figure 13)
(Figure 13)
6.2 "-3~-24" bar graphs display the average CO2 concentration and it is updated every 10 minutes.
"-3" is the average CO2 concentration of the latest 3 hours.
"-6” In past 6 hours, the average CO2 concentration of the first 3-hours.
"-12" In past 12 hours, the average CO2 concentration of the first 6-hours.
"-18" In past 18 hours, the average CO2 concentration of the first 6-hour.
"-24" In past 24 hours, the average CO2 concentration of the first 6-hour.
E.g. It is now 12:00 noon on 12/01. “-3” = 09:00~12:00 (12/01); “-6” = 06:00~09:00 (12/01); “-12” =
00:00~06:00 (12 /01) ; “-18” = 18:00 ~24:00 (11/30) ; “-24” = 12:00~18:00 (11/30)
Safety Instructions
Warning: Your safety is very important to us. To ensure to use the device correctly and safely, we would like to draw your attention to
read the warning and entire User Manual before using the device. These are important safety information and should always be
observed.
1.
Please handle the device lightly, do not subject the device to impact or shock.
2.
Do not immerse the device in water. Water can cause electric shock, fire or malfunction which may result in damage.
3.
Do not keep the device under a hot or moist environment. Keep the device away from the heat source or near water.
4.
Please use a standard USB power supply (such as PC's USB port, universal AC adapter with USB port). Improper power supply
can cause serious damage to the device or result in injury or death to the user.
Product Care
To ensure you receive the maximum benefit from using this device, please observe the follow guidelines.
1.
Cleaning---Disconnect the power before clean. Use a damp cloth, do not use the liquid cleaning agent, such as benzene, thinner or aerosols.
2.
Repair---Do not attempt to repair the device or modify the circuitry by yourself. Please contact with the local dealer or a qualified
repairman if the device needs servicing.
3.
Air circulation---The vents allow the air circulation liquid for measurement of the CO2 concentration and the ventilation should not be blocked.
CO2 & Temperature Specifications
Method – Dual Beam NDIR (Non-Dispersive-Infrared)
LCD Display – the current CO2 concentration, temperature, relative humidity, real-time and history of CO2 records.
Sample Method – Diffusion
CO2 Specification:
Measurement Range 0-9,999ppm
Accuracy 0~3,000ppm: ±100ppm or ±7% of reading, whichever is greater; over 3000ppm: ±10%
Display Resolution 1ppm
Warm-Up Time 10 sec
Response Time About 1min
Temperature Range 0°C~50°C (32°F~122°F)
Temperature Accuracy ±1°C (±2°F)
Temperature Display Resolution
0.1°C (0.1°F)
%RH Measurement Range 0%~99% RH
%RH Accuracy ±
Operating Conditions:
Operating Temperature 0°C~50°C (32°F~122°F)
Humidity Range 0~95% RH non-condensing 0%~99%
Storage Temperature -20°C~60°C (-4°F~140°F)
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