WELMEC Guidelines 7.2 Training Sat, 18. Mar 2023. WELMEC 7.2 Software Guide guides manufacturers and notified bodies on how to construct or check secure software for measuring instruments. Thus it was very important for our Metroracle project to pass the training course offered by NMi Certin B.V.Thanks to Edwin van Eersel for the great lectures and Erik Moeskops for the administration support.