Secondary Alarms; Thermal Alarm - MSA G1 Operating Manual

Alarm Type HUD

Thermal Alarm

Red Attention
Confirm
Solid
(Primary)
LCD Temp Blue Atten-
Alarm tion Flashing
Yellow Battery
Low Battery
Flashing
Medium Pres-
None
sure Alarm
9.3

Secondary Alarms

Icon
The attention icon flashes for an active and new warning or is steady for an old/ seen
warnings that have been viewed.
Evacuation alarm, the running man icon is visible on the primary screen if the evacuation
has been confirmed.
The buddy light status remains based on pressure status for secondary alarms.
9.4 Thermal Alarm
WARNING!
Although the thermal alarm provides an indication that the temperature/time curve is exceeded,
because of variations in individuals and protective clothing, the curve may not represent the
threshold to injury accurately. Use the thermal alarm only as a reference to increasing tempera-
ture/time. Do not use the thermal alarm as a substitute for standard operating procedures for
escape from temperature/time extremes.
Failure to obey this warning can result in serious personal injury or death.
If the option for the thermal alarm is activated, the control module monitors thermal conditions.
The thermal alarm can be set as a primary or secondary (default) alarm. If the user is exposed to
more than the preset limit of thermal load (temperature/time), the secondary alarm shows on the
control module and the power module emits a tone every 5 seconds.
The following figure shows the thermal alarm activation curve for the control module. The
temperature/time limits correspond to this graph. The thermal alarm activates if the preset limit
exceeds the curve shown on the graph. Depending on the severity of conditions, the alarm will
self-cancel. This may occur even though the temperature is above the thermal curve.
Control Module (ADSU) (Version with Integrated Electronics only)
Control
Buddy Lights
Module
G1 Integrated SCBA System
Sound
Red None
Based on
None
Pressure
Based on Beep every
Pressure 10 seconds
Optional sound (See
Yellow alphaCONTROL 2
Software)
GB
42