Cardioprotective pacing is applied to prevent andor reduce cardiac injury associated with myocardial infarction and revascularization procedure. A differential pressure controlled outlet valve between two backflow preventers forms a system disconnector between the fresh water inlet and the second outlet for physically disconnecting the water supply from the heating circulation installation. The projection includes a first portion and a second portion that define a cavity and a drain opening. % or more DCPD from the raw DCPD stream. The detector fibers may be distributed as desired in a three-dimensional detection space, and may be oriented with their longitudinal axes at different orientations relative to a transmission axis of an incident radiation beam. A means for latching the holding strip to the card body includes a first mechanism for latching the holding strip to a fastening surface of the card body or a second mechanism for latching the holding strip to a side edge of the card body.