How long is Segment 4 displayed before going out?

Segment 4 on the MSA G1 SCBA is displayed for a duration of 20 seconds before it goes out. This segment is part of the SCBA’s visual alarm system, which helps the wearer maintain awareness of critical performance parameters during use. The design of displaying information for a set interval helps ensure that the user can take necessary actions or make decisions based on the readings being displayed. The 20-second duration is standardized to provide sufficient time for the user to observe and react without overwhelming them with constant changes, which could lead to confusion or distraction in emergency situations. Ensuring that critical information is presented for an adequate time enhances safety while using the SCBA in hazardous conditions.