Often, all that is called for is an 'operational check' rather than a full, traceable calibration.
Whether this is permissible, and whether it is a good idea, is situation-dependent and I can't generalize. In the second case, it's not so clear.įor instruments that are not used to demonstrate conformance, many companies label them 'for reference only' when conformance is demonstrated later in the process. In the first case, documented procedures are required. There is a distinction made between Inspection, Measuring, and Test Equipment that is specifically used for demonstrating conformance (including conformance to internal requirements, such as process variables), and IM&TE used when demonstration of conformance is not required. * Then 4.11.2 b that tells us we must "identify all inspection, measuring, and test equipment that can affect product quality, and calibrate and adjust them." So, this brings process control equipment into the scope, in addition to inspection and test. Where�s the deal � * ISO9000, 4.11.1 has words like you must ".establish and maintain documented procedures to control, calibrate, and maintain inspection, measuring and test equipment used.to demonstrate the conformance of product to specified requirements." This indicates that you only need to calibrate equipment that you use for inspection and test. >And two, does anyone have an opinion on the need for oven calibration if you are using profiling equipment that is calibrated by an outside source? So, then we get assigned to another task team, which seals our fate that we never get anything done in the shop during normal working hours. So, everyone rolls their eyes toward the heavens and prays that the meeting chair ignores the stewer and moves on to close the meeting, giving us the slimmest of chances that we can get some �work� done today, but that rarely happens. See, somebody�ll be stewin� about something and they�ll go out and root-out some meaningless piece of trivia, and then table it in a meeting with a agenda that has about as much pertinence to the new topic as dirt. We argue about stuff like this all the time.
>One, has anyone else ever experienced and dealt with a company debate regarding whether or not your reflow ovens should or should not be calibrated? First, congratulations on becoming involved in this fascinating area.
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