An automatic warewashing machine includes a washing chamber, a hinged door configured to close the washing chamber, and a force-locking latching mechanism configured to hold the door in a closed position and release the door in response to a pulling force. The structure includes a radiation guide having an outer surface constructed and arranged to guide the laser radiation away from the optical gain medium. The removable tube carrier has an end with a plurality of apertures aligned with the plurality of inlet ports of sealing surface of the analytical module. The configurable component may be a matrix switch that can reconfigure the interconnections between banks included in the thermoelectric generator.