Datasheet

APPLIcATIONs
Indoorairquality Monitoringinunderground
garages(safety)
Leakmonitoringinfilling
plants(safety)
PRINcIPLEs
TheCP11handheldinstrumentevaluatesthequalityofairwithacombinedmeasurementofCO
2
,humidityandtemperature.Ahigh
concentrationofcarbondioxidecandevelopquicklywhenclosedareaswithdecientventilationarelledwithpeople.Carbon
dioxide(CO
2
)isacolorlessandodorlessgasthatexistsintheearth’satmosphereandwhichisdangerousinhighconcentrations.
TheproportionofCO
2
innaturalambientairisabout0.04%or400ppm.Whenhumansandanimalsexhalethisgas,itmixesquickly
withtheambientair.AhighCO
2
contentbecomesapparentinhumansthroughrapidfatigueandlossofconcentration.Inorderto
initiatesuitablecountermeasuressuchasanincreaseinthesupplyoffreshair,itisimportanttomeasurenotonlyparameterssuch
asrelativehumidityandtemperature,butalsotheCO2content.
Guidelines
350 - 450 ppm 400 - 1,200 ppm > 1,000 ppm 5,000 ppm
(0.5 %vol)
38,000 ppm
(3.8 %vol)
> 100,000 ppm
(10 %vol)
Freshairoutdoors Roomair Fatigueandloss
ofconcentration
becomeapparent.
Maximumpermissible
valueattheworkplace
duringan8-hour
workday
Breathingair
(directexhalation)
Nausea,vomiting,
lossofconsciousness
anddeath