Adjustment of cleaning agent concentration for electronic components

Electronic components often have the smallest components and filigree integrated circuits whose purity is very important. To ensure proper function, resin, flux, or other process residues must be completely removed. The circuited boards are immersed in a tank containing the detergent in a certain concentration. For optimal purification, the right concentration of the active ingredient is crucial. Thanks to constant comparison of actual and target values, LEWA metering systems ensure an exact and steady concentration of the cleaning agent.

A corresponding sensor in the immersion bath determines the current concentration - such as the conductivity or the pH value. The measured values are reported to the LEWA smart control. lf necessary, the controller initiates an adjustment of the concentration by adding more active agent into the immersion tank.