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P/N 595369-01 Rev B 07/19
OPERATION AND USE OF SEMS II PRO CONSOLE UNITS
Users of 3M Scott Air-Pak X3 Pro SCBAs equipped with the SEMS
II Pro Control Consoles must be fully trained in the operation of the
equipment as part of a complete respiratory protection program
before entering a hazardous environment.
1. Start-up: Use of the SEMS II Pro-enabled unit begins when
the user rst opens the cylinder valve on the respirator. The
unit will sound three chirps to indicate activation. After a brief
start-up sequence, the module will sound 3 quick audible chirps
and a green light located on the Control Console will ash
approximately once per second.
2. Initialization and RANGE: After the start-up sequence, the
PASS device will send an initialization signal to the Base
Station
a. When a SEMS II Pro-equipped SCBA is searching for
a connection to the Base Station, the RANGE symbol
on the Control Console will flash yellow.
b. When a connection is made with the Base Station, the
RANGE symbol on the Control Console will turn to solid
green.
c. When a SEMS II Pro-equipped SCBA loses contact with
the Base Station, the RANGE symbol on the Control
Console will flash yellow, indicating out of range until
it can regain contact. If out of range, the SCBA will
search for a Base Station until it re-establishes a con-
nection.
Except for those functions which involve communication,
all PASS functions of the SEMS II Pro Control Console are
still operational when the SCBA is either out of range or not
connected to a Base Station or radio.
3. PASS ALARM (PASS)
a. The PASS device will operate in conjunction with the SEMS II Pro
Control Console. If the PASS device on the respirator is activated,
either by the user pressing and holding the red MANUAL ALARM
button or due to the user being immobile for the required time dura-
tion, the SEMS II Pro Control Console will send a distress signal to
the Base Station. This signal will override all other messages and
actions of the Control Console. The PASS symbol on the Control
Console will flash red.
b. The PASS icon will flash red on the Control Console, and an audible
alert will sound.
c. When the Base Station acknowledges the user’s distress signal, the
PASS icon on the Control Console will turn solid red.
d. The PASS device on the respirator will continue to alarm until the
user shuts down the respirator or resets the alarm.
4. EVACUATION (EVAC)
a. If the respirator users are required to leave the hazardous area, the
Base Station operator can send an evacuation message to the SEMS
II Pro Control Consoles of logged-in respirator users. This message
can be sent to any or all logged-in users.
b. The Control Console will emit the alert sound and the EVAC icon will
begin flashing red on the Control Console.
c. When an EVAC symbol begins flashing on the Control Console, the
respirator user must press the yellow RESET button on the Control
Console twice to respond to the evacuation message. The EVAC
symbol on the Control Console will turn solid red until the user leaves
the hazardous area and shuts down the respirator.
Evacuation messages will be sent ONLY to individual SEMS II Pro-equipped
SCBAs.
5. System Integrity Alarm (EVAC)
a. If the temperature of the on-board electronics exceeds a threshold
(approximately 176° F), the System Integrity Alarm is activated.
b. The PASS device will emit an audible alert and the EVAC icon will
illuminate (solid red) on the Control Console. The alarm continues
until the temperature of the electronics drops below the threshold.
EVAC /
WITHDRAW
RANGE PASS ID / ePAR
CONTROL CONSOLE ICONS
SIGNAL
LIGHTS
RESET
BUTTON
(YELLOW)
MANUAL ALARM
BUTTON
(RED)
WITHDRAW
BUTTON
(GRAY)
CONTROL
CONSOLE
DISPLAY
SEMS II PRO CONTROL CONSOLE
WARNING
WHENEVER THE EVAC SYMBOL FLASHES, THE
RESPIRATOR USER MUST RESPOND TO THE
EVAC MESSAGE, LEAVE THE AREA, AND SHUT
DOWN THE RESPIRATOR. FAILING TO DO SO
MAY RESULT IN SERIOUS INJURY OR DEATH.
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