Apogee Instruments MO-200 Manuale d'uso - Pagina 13

Sfoglia online o scarica il pdf Manuale d'uso per Strumenti di misura Apogee Instruments MO-200. Apogee Instruments MO-200 20. Oxygen meter

For measurements in soil or saturated air (100 % relative humidity), it is recommended that the MO-200 is calibrated in

conditions where relative humidity is 100 %. A simple way to accomplish this is to mount the sensor in a sealed chamber over

water, with ambient air filling the headspace, as shown below.

A) Relative humidity effects on relative

oxygen concentration shown as a function

of relative humidity at temperatures

increments of 10 C and B) as a function of

temperature at relative humidity increments

of 20 %. The air in soil is typically always

saturated with water vapor (100 % relative

humidity) unless the soil is very dry.