This video introduces the 6270A and demonstrates some of its features.
This video demonstrates the Contamination Prevention System (CPS) for the 6270A Calibrator. The CPS protects the 6270A by maintaining uni-directional flow away from the controller, a gravity sump system, and a two-stage filtering system. The CPS itself has a valve to vent pressure so contaminants from the Unit Under Test can't get to the 6270A.