An energy detection apparatus and method for detecting energy is disclosed. The flanges are in registered, abutting relationship with a laser weld bead at the juncture between the flanges to provide a fluid seal circumscribing the filter. The default setting values included in the default setting data set are non-rewritable, and the user setting values included in the user setting data set are rewritable based on the default setting values. The sensor senses intrinsic cardiac electrical phenomena. In one embodiment, JAVA programming language methods are processed within the context a modified framework.