I have recently acquired a secondhand 6210 TOF and pumped down for the first time. The installation guide states that a vacuum level of 2e-6 mbar is required to start conditioning. My current vacuum level is 1.8e-6 (no units) and only slowly decreasing, but initiating the conditioning cycle returns 'insufficient vacuum'. I am guessing that my measurement is in Torr not mbar and must therefore wait until 1.5e-6 is reached. Agilent manuals, even with the ToF range, seem to swap between these units. Has anyone encountered the same issue?