Calibrate devices affecting quality

In order to meet this requirement you will either need a register or listing of all devices that can affect product quality or label each device so that those that affect product quality are distinguishable from those that do not. This is not the same as a calibration label, as some devices that affect quality may not require calibration. The means you use should enable anyone to determine whether or not the characteristics of the device should be controlled. 

Ensures that the inspection, measuring, and test equipment is capable of the accuracy and precision necessary Establishes, documents, and maintains calibration procedures, including details of equipment type, identification number, location, frequency of checks, check method, acceptance criteria, and the action to be taken when results are unsatisfactory Identifies, calibrates, and adjusts all inspection, measuring, and test equipment and devices that can affect product quality at prescribed intervals or, prior to use, against certified equipment having a known valid relationship to nationally recognized standards. Where no such standards exist, the basis used for calibration is documented. 

Equipment break down. Continuous mixers depend on many other pieces of equipment, such as the metering feeders and the monitoring devices to function at the level desired. If any piece of equipment fails to operate reliably, the entire mixing process is affected. Once the feeders are set to deliver the desired mixture quality, the system must be left undisturbed except for the purpose of calibration. 

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