New to metal detectors as I came for the beverage industry.
I am just after some thoughts.
Currently our checks on the metal detector are every 4 hours and i feel that is a very long time. Can i ask, what time frames others have.
Is it just a matter of how much product you need to hold and rework if there is a fail?? or is there a direct method that will tell you the required frequency. They appear to have no justification as to why it is every 4 hours.
Lastly, we have it calibrated annually and as mentioned above checked every 4 hours by the operators. should there be another internal verification/validation between calibration periods or whats the recommended practice?
It's an amazingly popular question. Many threads place the last factor in set below as the major determining factor.
Standard is unknown but, if BRC, frequency recommendation should consider -
• start-up and nish of shifts
• product changeovers
• change in machine settings following downtime for repairs
• customer requirements
• regular checks throughout production (these should consider the site’s ability to recover and retest product in the event of a failure; therefore a minimum of hourly testing is typically expected)
.[despite Post 2, I would personally have thought a minimum frequency should be once per hour ]
V.slightly off-query but also see -
Last part of OP mixes together calibration, checking, validation and verification. Some clarification as to meaning is required. Offhand, 2nd = 4th. 3rd = sensitivity = Prelim. set-up. 1st = "arbitrary" but typically annually.