Odile/Dilution
Dilution unit
The dilution unit consists of several mass flow-controllers and a saturator for:
- obtaining a 1 to 2,000,000 dilution range without predilution and unlimited step units between each dilution level
- furnishing pure air flows to initialize the olfactory epithelium of panel members and proceeding to the triangular evaluation of the perception thresholds
- activating the auto-cleaning system for all pipes and electromechanical parts after each day of use
- generating air flow with n-butanol concentrations within 5 to 75 000 PPB(v)
- purging the system between jury exposures
- proceeding to a system cleaning after each olfactometric analysis
The olfactometer is designed to prevent contamination between jury exposures and high concentrations before voting.