OPERATION MANUAL
PORTABLE CO2 METER
CE
Page 1: ...OPERATION MANUAL PORTABLE CO2 METER CE...
Page 2: ...nd humidity DP WB RH are for models 7755 77535 and is an ideal instrument for indoor air quality IAQ diagnosis Poor indoor air quality is considered unhealthy because it causes tiredness loss of abili...
Page 3: ...ent on the rear and make sure they are in correct polarity and good contact nd Lob will appear on the LCD And beeper sounds atter When an adaptor is used it will cut off the power supply from batterie...
Page 4: ...ftm m s CO2 CO2 concentration in ppm Relative humidity in Air temp Dew point Wet bulb temp in o C or F o Symbols Turns on and off the meter Enters setup mode Sets as non sleep mode with SET CAL Esc D...
Page 5: ...CO2 Fig 4 Fig 5 TAKING MEASUREMENT O O CO2 Press to switch temperatures display The lower left display will cycle from air temperature dew point temp Fig 4 and wet bulb temp Fig 5 The meter starts mea...
Page 6: ...o see the minimum maximum and weighted average readings Each press of it displays MIN MAX STEL TWA in sequence and returns to normal mode In MIN and MAX modes it shows the minimum and maximum readings...
Page 7: ...Fig 9 The meter turns off automatically after 20 minutes of inactivity To override the function hold down and for 2 seconds to turn on the meter until n appears NOTE Auto sleep function will be disab...
Page 8: ...tunes and the alarm range is from 100 to 9900ppm When the preferred alarm value is set press to save the setting or without saving and return to P1 0 P3 0 TEMPERATURE SCALE Press or in P1 0 to access...
Page 9: ...weather Place the meter in the calibration site Turn on the meter and hold down and simultaneously to enter CO2 calibration mode Fig 14 400ppm and CAL are blinking on the LCD while performing calibra...
Page 10: ...humidity with 33 and 75 salt solution The ambient condition is recommended o to be at 25 C and stable humidity better to be close to the calibrating value To abort calibration just turn off the meter...
Page 11: ...01 CO sensor damaged 2 E02 The value is under range E03 The value is over range E04 The original data error results in this error DP WB E07 Too low voltage to measure CO 2 Replace batteries or use an...
Page 12: ...Resolution Accuracy Pressure Dependence Range Resolution Accuracy Range 0 0 99 9 Resolution 0 1 3 10 90 5 others Warm up Operating Storage Power Battery life 10 0 60 0 14 140 0 1 0 1 1 6 reading per...
Page 13: ...ted 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 Non Enf...
Page 14: ...m leaking batteries Proof of purchase is required for warranty repairs Warranty is void if the meter has been opened RETURN AUTHORIZATION OTHER RELATED PRODUCTS Authorization must be obtained from the...
