What is indicated by a consistent green light on the HUD?

A consistent green light on the Heads-Up Display (HUD) indicates normal operation of the Self-Contained Breathing Apparatus (SCBA). This means that all systems are functioning as expected, and the device is ready for use. The green light serves as a reassuring signal to the user that the apparatus is in good working order, ensuring that they can rely on it during critical situations.

In contrast, a low battery would typically be indicated by a different signal, such as a flashing or colored alert light, which alerts the user that the power source needs to be recharged or replaced. A malfunction would also emit specific warning signals that deviate from the consistent green light to inform the user of the issue, while maintenance requirements are usually indicated by alerts notifying the user of specific service needs.