The identification station consists of a primary and secondary read-out head supported at a fixed position between specimen holders. Each specimen holder is conveyed to the read-out station in turn, e.g. by a turntable etc., and held in a clamp. The clamp can be rotated by motor-driven worm. Each specimen flask is identified by means of machine-coded data, using, e.g. a 2 from 5 code which is printed on labels attached to the flasks. The flasks are rotated via the worm so that the data can be read off by the scanning head in the correct sequence. The signals from the heads are fed to a central control unit, e.g. computer or microprocessor.
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