TSI 854041 Heated Inlet Sample Conditioner

In humid environments, hydroscopic aerosols absorb water and swell, resulting in larger signals which a photometer interprets as increased aerosol concentration. To correct this effect, the TSI 854041 Heated Inlet Sample Conditioner has been designed to maintain a constant relative humidity level in the sample air stream before entering the DustTrak™ Environmental Monitor optics. The user can set the desired  level of humidity to better correlate with reference method filter conditions to enable the system to automatically adjust based upon the ambient RH level.

It is recommended to use this conditioner when the ambient humidity level is above 50%.