PSI-Quali ers improve assembly quality by enabling error proo ng to prevent missed fasteners or incomplete fastening cycles. Incomplete fastening cycles that are identi ed and alarmed include: ehits of a pretightened fastenerCrossthread of fasteners into mating threads Slipoff (or cam out) of the socet or screwdriver bit from the fastener head before fastening to nal torque.Short cycle (premature cycle abort) by the operator prior to fastening to nal torque. Elimination of pressure feedback lines and tool porting reduces installation and maintenance cost. > The PS monitors each fastening cycle...