On a µR series with the header printout option (/BT1), when recording is stopped, it can automatically increment the lot number by 1. If the lot number is 9999 or 999999, what would the lot number be after an update?

The μR series are the compact industrial recorders with the recording widths of 100 mm (μR10000) and 180 mm (μR20000). Measured data can be saved to an SD memory card while recording on chart paper.