11-14-07 01:09 PM - Post#4265 In response to vicentexxx
I would say that what you do is good. The customer is asking too much... especially if it was never requested by FDA. It is not a laboratory balance after all !! . I would have the balance calibrated over the entire range by an outside company once a year or every 2 years. Maintenance should look at it at regular interval. For the daily check, you can place a certified weight on top of an unknown mass ( a regular production for example). It will not take much of your operator's time. If the difference equals the certified mass, it is good sign.