Typical conditions inside incubators are warm and humid (37 °C (98.6 °F), > 90 %RH). This means that condensed water will form easily in the tubing between GMP80P and the incubator, or inside the measurement chamber of GMP80P (when sampling with the steel pipe). To prevent condensation from affecting measurement accuracy, note the condensation prevention considerations in the following sections.
| As the gas sample dries during the sampling process, the CO2 concentration of the dry sample will be higher than in the wet sample taken in the measurement environment. This is due to water condensing off the warm gas sample as it cools down. To determine the most accurate measurement values in your sampling environment, see GMP251 User Guide (M211799EN) at docs.vaisala.com for a table listing the dilution coefficients for gas samples taken at different temperatures. |