How long is Segment 1 displayed at start-up before it goes out?

At start-up, Segment 1 of the MSA G1 SCBA is displayed for a duration of 20 seconds. This initial segment allows users to verify that the device is functioning properly, indicating important information about the system's readiness and battery status. The 20-second display provides ample time for individuals conducting pre-use checks to ensure that the SCBA is operational and to address any immediate concerns before entering a potentially hazardous environment.