Regarding IT16026 (MB104911), we exchanged new insp block as preventive.
After exchange to new insp block (S/N:1551043), they connected O2 supply (6bar)
and warming up the device for calibration. (setting FiO2 was 70%)
However, "O2 supply insufficient" happened.
It's same as the original complaint phenomenon (IT16012 and IT16026).
Is it happened because not performed calibration? Or can you consider different cause?