The DPC-Touch Posi-Control device works in conjunction with the position control torque arm. Together the two units are an error-proofing system that detects and eliminates costly screw-fastening errors during the assembly process. Sequence-based fastening is critical to proper process control and a quality fastening result for torque applications. A position control torque arm system ensures a power tool runs down the fasteners in the proper sequence. The encoder sends arm positioning data to the posi-control device where it saves the data and the time it took to complete the rundown. During subsequent fastening with the positioning torque arm, the posi-control device will not clear a sequence unless it has been completed within the set parameters. It’s like putting the eyes and ears of a quality control manager where they are needed most – right at each work station.