155 Repair and Maintenance5 Repair and MaintenanceWARNING!The device must not be repaired, modified or manipulated. Otherwise the safety integrity canbe lost and LAMTEC will not guarantee for the proper operation any more.NOTICEDefects and failures must be reported to LAMTEC as soon as possible, including type, versionand serial number of the device.In case of a repair or maintenance, comply with instructions from the installation manual.Defective devices must be sent to LAMTEC for a repair. The safe operation of the applicationmust be ensured while the device is being repaired or a maintenance is ongoing. After a repairor a maintenance, follow chapter 3 Installation and Commissioning again.WARNING!Replace the device only by one of the same type and version and check the correspondingdata and parameter set.DANGER!The flame detector is a safety device. Any repair work or other changes to the device shallonly be carried out by the manufacturer's specialist staff or by some other persons appointedby the manufacturer. Any other persons are not allowed to operate on parts inside the device.In particular, this concerns the unauthorized exchange of the flame contact fuse. Any unau-thorized replacement, repair or modification of the device can lead to a loss of the safetyintegrity.