32 ESD The soldering station PUD 151R is suitable for soldering tasks in industrial manufacturing in which the soldering pro- cess is to be automated. For this purpose the unit is equipped with a monitoring circuit. As function of an adjustable temperature window (tolerance band) an un-powered contact is reduced to a low impedance. Straight forward, easy operation is made possible with the usage of a micro processor. Digital control electronics ensure optimal regulation behaviour with different soldering irons upto 150 W. The soldering irons are automatically recognized by the solde- ring station and assigned the apropriate control parameter. Special application for use in solder robots