MSA G1 SCBA - Control Module; PASS Device Functionality

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Control Module
G1 SCBA 2018 Edition
US
9 Control Module
WARNING!
 The control module can display the calculated service time remaining counting down to 0 psi
(default) or 35 percent of the rated service pressure or to medium pressure alarm. The user must
determine which option has been selected for the control module in service.
 The actual time remaining may be less than the calculated time displayed. The calculated time
displayed is based on the continuation of the average breathing rate over the last 3 minutes.
Increases in breathing rate can decrease the remaining time more than expected. Use the time
indicator as a general guide only
.
Failure to obey this warning can result in serious personal injury or death.
9.1 PASS Device Functionality
The control module provides the primary user interface for the SCBA electronics. For the PASS
device, the control module displays the SCBA pressure (configurable), estimated time remaining
(configurable), status of the thermal sensor, battery level, and radio communication status (if
equipped). The control module will also display all alarm conditions for easy interpretation.
The power module provides power and data to the control module to display the information, emits
audible alarms and pre-alarms, and four buddy lights to make others aware of the system status.
9.1.1 Sleep Mode
When the SCBA is not in use, it is in sleep mode. During sleep mode, the SCBA periodically checks
for system changes and wakes as needed. The conditions that wake the system from sleep mode
include battery installation, system pressurization, or activation of the ALARM button on the control
module.
The control module also wakes from sleep mode when the user pushes and holds the RESET button
to check the battery status without pressurizing the system. If the user holds the RESET button after
the battery symbol appears, the control module goes into service mode, which provides additional
details about product usage. Only trained personnel are authorized to use service mode.
9.1.2 Start-up Sequence
WARNING!
If the control module shows a Hardware Alarm icon during start-up, remove the SCBA from service.
Make sure an MSA trained and certified repair technician corrects the unsatisfactory condition before
returning the SCBA to service. Failure to obey this warning can result in serious personal injury or
death.
When the PASS device goes out of sleep mode, it goes into a start-up sequence that provides infor-
mation to the control module about the state of the SCBA for operation.