And I also said .........
KenV :
Please don't cherry pick.
I also said "But I would still see it only as a double check (treble check?) against existing procedures".
I did not suggest at any time that it could be used as a replacement for proper calculation.
At least until more sophisticated systems are developed.
However these systems are actually quite accurate and reliable.
Like everything else, they need maintenance and checking (or as I flippantly said, occasional re-calibration).
But more to the point, if your manual system is so bl...dy foolproof then why has there been two or more recent cases of such major, and potentially fatal, errors.
Even a poorly calibrated loadweigh would pick a 100 tonne finger fault.