OPERATION MANUAL PORTABLE IAQ METER CO2+RH+TEMP.
INTRODUCTION Thank you for purchasing this portable IAQ me ter. The me ter me asures CO 2 level, air temp ., dew point, wet bulb temp . and humi dity and is an ideal instrume nt for indoor air quality (IAQ) diagnosis. Poor indoor air quality is considered unhealthy because it causes tiredness, loss of ability to concentrate, and even illness(ex. Sick Building Syndrome ).
FEATURES Big LCD display with blue backlight to use in dark area One touch to display CO 2 /Dew point temperature/Wet bulb temperature/ Air temperature/Humidity in turns.
POWER SUPPLY The meter is powered by either 4 AA batteries or a DC adaptor(5V/1A output). Install the batteries into the battery compartment on the bottom and make sure they are in correct polarity and good contact. When an adaptor is used, it will cut off the power supply from batteries. The adaptor can’t be used as a battery charger. When battery voltage gets low, will appear on the LCD (Fig.1) .
LCD DISPLAY CO 2 TEMPDPWBT HOLD MAXMINAVGCAL O C F O %rh AM PM REC Re call Symbols Upper LCD CO2/Temp/RH....reading Lower LCD Real time display CO 2 Carbon dioxide reading HOLD MIN/MAX AVG DP TEMP WBT %rh o o C/ F CAL REC RECALL Readings are freezed unchanged Minimum/Maximun readings Average reading Low battery indicator Dew point temperature Air temperature Wet bulb temperature Unit of relative humidity Celsius/Fahrenheit of temp.
HOLD MEM MIN MAX/AVG Freezes the current readings. Selects unit or increases value in setup. Cancels data hold function. Press to manually record the reading. Selects unit or decreases value in setup. Activates MIN,MAX,AVG function. Saves and finishes settings. OPERATION POWER ON/OFF Press SET to turn the meter on and off. At power up, it emits a short beep and performs 30 seconds countdown(Fig.2) for meter warm up, then enters normal mode with current CO 2 and real time displayed (Fig.3).
CO2 (Carbon Dioxide) MODE Press RECALL to switch the mode to CO2. User can get the CO2 reading in ppm unit on main display.(Fig.4). The lower display shows the real time clock. CO 2 TEMP O AM C AM Fig.4 Fig.5 AIR,DP,WBT MODE Press RECALL to switch to temperatures display(Fig.5,6,7).The lower display shows the real time clock. WBT DP O O C C AM AM Fig.6 Fig.7 Humidity MODE Press RECALL to switch to humidity display. (Fig.8).The lower display shows the real time clock. %rh 6 Fig.
DATA HOLD In normal display mode, press to freeze the readings, "HOLD” icon is flashed on the left top of LCD(Fig.9). All current readings are kept unchanged. Press again to cancel the hold function. HOLD HOLD HOLD %rh Fig.9 NOTE: THE HOLD FUNCTION IS DISABLE IN MIN/MAX/ AVG MODE. BACKLIGHT The backlight will be activated for 10 seconds by pressing any key. MIN,MAX,AVG,CURRENT REVIEW This meter allows you to check the minimun, maximun, average, current value from the moment you press the key.
In this max/min/avg/current modes, it shows the corresponding readings on main display and the accumulated time of how long you are in this mode. ( Fig10 ~12). The maximum time interval for this function is 18 hours. MODE In this mode, press RECALL to switch the displayed parameters. Fig 14. The dispalyed sequence in this mode is min max avg current min max..... Press START ESC key can immediately leave this mode and return to normal display.
parameter you choose to see on main display. Fig.15 AM REC If the reading changes quickly, you can press to freeze the reading before manually recording the data. HOLD The manually recording function is disabled in min/max mode. 99 MEMORIES RECALL The meter features 99 point memories review function. MODE In normal or hold mode, press RECALL key for more than 2 seconds until the Re ca ll icon flashes. Press or to scroll the memories.
To escape the memory recall mode, press START key to leave and return to ESC normal display. ALARM The meter features audible alarm to give warnings when CO2 concentration exceeds the limit. (See P20 in setup for setting alarm threshold). It emits beeps(Abt.80dB)when CO2 level goes over the set value and stops only when the readings fall below the set value. It beeps again when value goes over the limit. DATA LOGGING The meter can automatically record readings of CO2/TEMP.
To terminate data logging, press START ESC for 2 seconds, REC icon stops flashing START While press ESC to start the logging again, the previous logging records are overwrite. Press MODE key to switch to the mode RECALL you want to see. Except the mode switch function, min/max, manual record, hold and recall functions are all disabled during logging. AUTO POWER OFF The meter turns off automatically after 20 minutes of inactivity.
P10: 99 MEMORIES CLEAR When entering setup mode, P10 and “CLr” (Fig.21) are displayed on the LCD. Press to go into P11 and decide to clear or keep all the manual records. The current set will be blinking on LCD (Fig.22). MIN MAX/AVG MEM HOLD Press or to choose NO or YES and press to confirm. MIN MAX/AVG Fig.22 Press START ESC to escape and return to P10. P20: CO2 ALARM When entering setup mode, P20 and “ALAr” (Fig.23) are displayed on LCD. Press to go into P21 for setting CO2 alarm threshold.
P30 TEMPERATURE UNIT When entering setup mode, P30 and “unit” (Fig.25) are displayed on the LCD. Press to go into P31 and decide the temperature unit. MIN MAX/AVG The current set will display on LCD (Fig.26). o o Press or to choose C or F and press to confirm. MEM HOLD MIN MAX/AVG TEMP TEMP O C Fig.26 Fig.25 Press START ESC to escape and return to P30. P40:LOGGING SAMPLING RATE Go into P40 for setting sampling rate of data logging(Fig.27).
P50 PRESSURE COMPENSATION When entering setup mode, P50 and “PrES” (Fig.29) are displayed on the LCD. Press to set pressure compensation value for CO2 measurement. MIN MAX/AVG The current set will flash on LCD (Fig.30).The barometric pressure unit is kpa. Press or value and press MEM HOLD to adjust the pressure to confirm. MIN MAX/AVG CO 2 CO 2 Fig.30 Fig.29 Press START ESC to escape and return to P50. P60:REAL TIME CLOCK Go into P60 for setting the real time clock of this meter.
CO2 CALIBRATION The meter is calibrated at standard 400ppm CO 2 concentration in factory. It’s suggested to do manual calibration regularly to maintain good accuracy. Note: When the accuracy becomes a concern after a long time usage, return to dealers for standard calibration. CAUTION: Do not calibrate the meter in the air with unknown CO 2 concentration. Otherwise, it will be calibrated as 400ppm by default and leads to inaccurate measurements.
CO 2 CAL CAL %rh Fig.34 Fig.33 RH CALIBRATION The meter defaults to be calibrated the humidity with 33% and 75% salt solution. The ambient condition is recommended to be at 25 o C and stable humidity(better to be close to the calibrating value). To abort calibration, just turn off the meter. CAUTION: Do not calibrate the humidity without the default calibration salt. Otherwise, it will cause permanent damage. Contact the dealer for calibration salt or services.
“CAL” and calibrating value (75.3% if at 25 oC) are blinking on the LCD. Meter is now calibrating, and will finish in about 60 minutes when “CAL” and humidity stop blinking. To abort the calibration, turn off the meter at any time. CAL %rh Fig.35 TROUBLESHOOTING ? Can’t power on Press SET for more than 0.3 seconds and try again. Check whether batteries are in good contact and correct polarity, or the adaptor is well plugged.
PC CONNECTION Connect the logger to PC, users can do logging setting and data transmission with the included software. Plug the USB cable into the socket at the right side of the meter and the other port to PC. Then install the software in your PC with the following procedure. 1.Insert the CD Rom and run installation. Select a preferred directory and click “Next” step by step and finish it. 2. After the software installation is completed, it will run USB driver installation next.
Software Operation AutoConnect Start the software and it will detect logger connection automatically and indicate the COM Port information at the bottom of the main screen as well as the COMPort setting column. Logger Settings To set up logging plan, click “Setting” icon and select “Logger”. The setting page is opened. Users can set up the logger identifier number. Click OK for setting and Exit the screen to confirm the settings.
Data Transmission To transmit auto recorded data from the meter, click “Download” icon on the left top side of the main screen. All autorecorded data in the logger will be transmitted. The raw data with time stamp will display at the lower part of the screen and the graph in the middle. In the Graph display, the Y-axis indicates Temp, RH,DP, WBT, Co 2 level in different line colors. And the X-axis can be switched to show Time or Recorded No. Stamp.
Zoom window: Hold down “Ctrl” key and drag click the left button of the mouse to select an area on the Graph and the selected area will be enlarged . Zoom Xaxis: Hold down “Ctrl” key and drag click the left button of the mouse to select an area on the Graph and the X-axis of the selected area will be enlarged. Zoom Yaxis: Hold down “Ctrl” key and drag click the left button of the mouse to select an area on the Graph and the Y-axis of the selected area will be enlarged.
Data Processing The downloaded data can be Saved or Printed via “File” processing functions. Load: To retrieve saved files, just click “Load” and select a desired file and it will be loaded in the main screen with the file details at the left top side. SPECIFICATION ROTRONIC CP11 Measuring range 0~9999 ppm, CO2 (5001~9999 ppm out of scale range) Temperature Relative Humidity DP(Dew point temp.) WB(Wet bulb temp.) Resolution Accuracy CO2 Temperature Relative Humidity o o -20~60 C (-5~140 F) 0.1%~99.
CO2 LEVELS AND GUIDELINES Non-Enforced Reference levels NIOSH recommendations 250-350 ppm: normal outdoor ambient concentrations 600 ppm: minimal air quality complaints 600-1000 ppm: less clearly interpreted 1000 ppm: indicates inadequate ventilation; complaints such as headaches, fatigue, and eye/throat irritation will be more widespread. 1000 ppm should be used as an upper limit for indoor levels.
