Pass/Fail Checks for a Machine Vision Inspection Station FAT
Define measurable pass/fail criteria for a vision inspection station FAT, using known workpieces and the stated 30–40 pcs/min line rate as reference points for acceptance testing.
A buyer should decide up front that the factory acceptance test will use a fixed set of known-good and known-bad industrial workpieces, with every result recorded, rather than accepting a live demonstration on whatever parts happen to be on hand. That decision turns the FAT into a repeatable check of detection capability instead of a visual impression.
In the RFQ, ask the supplier to state how many good and defective samples will be run, what defect types each represents, and how false accepts and false rejects will be counted. Request that the station be exercised at the stated 30–40 pcs/min production speed reference, and ask whether results hold across that range or only at one setting. For the demonstration, require a clear pass/fail output for each part and a log the buyer can review.
For acceptance, agree on thresholds in advance: how many defective parts may be missed and how many good parts may be rejected in the agreed sample set. Confirm the inspection station fits the 850 × 750 × 1,720 mm footprint and 150 kg weight reference in the intended line location.
Before requesting a quote, confirm with the supplier which workpiece materials and defect types the station is intended to inspect, how pass/fail thresholds are set and changed, what sample parts the buyer must supply for the FAT, and how test results will be documented.