This application discloses a process for decomposition of ammonium sulfates found in a stream comprising ammonium sulfate and slurry catalyst in oil. A dominant signal propagation path between the mobile user and at least one of the plurality of base stations is via a repeater. The device may also include a single use lockout to help ensure that the device is used to perform only one ablation procedure on a single patient. The element is slidable along the elongated member in the first direction when the protection device is inflated. The enclosure contains a diagnosis device comprising a second antenna connected to a test circuit via a switch and means for providing a switch control signal, said test circuit being capable, with no presented contactless card, of exchanging data with the control circuit by the coupling of the first and second antennas when the switch is on to perform a diagnosis of the reader.