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MANUAL ALARM:
If the respirator user is in a situation where immediate assistance is
required, the SEMS PDA distress alarm provides a manual alarm but-
ton, located on the front of the Control Console on the user’s right
shoulder, shown in FIGURE 2.
The manual alarm causes the Full Alarm signal to be given. The
manual alarm may be activated at any time by pressing the manual
alarm button and holding at least two seconds, even when the respira-
tor is not pressurized, provided a good battery is in the SEMS PDA
distress alarm. If the manual alarm button has been pressed without
the respirator pressurized, the alarm can be silenced by pressing the
reset button twice. The SEMS PDA distress alarm is now on and in
automatic mode. To turn the unit off, press the reset twice again while
the unit is not in alarm mode.
TURNING OFF THE SEMS PDA DISTRESS ALARM:
The SEMS PDA distress alarm can not be turned off if the respirator
cylinder valve is open and/or pressure remains in the respirator. Press-
ing the reset button when the respirator is pressurized will only reset
an alarm condition and return the SEMS PDA distress alarm to auto-
matic mode.
When the use of the SEMS PDA distress alarm and respirator is no
longer required, first close the cylinder valve on the respirator, then
vent the residual air from the respirator system by opening the regula-
tor purge valve. After waiting until the air flow stops, close the regula-
tor purge valve and turn off the SEMS PDA distress alarm by pressing
the reset button twice after the flashing green light sequence. The
unit will say “OFF” in the display, sound a quick two tone chirp, and the
SEMS PDA distress alarm will be inactive. If there is no pressure in
the system when the reset button is pressed twice, there will be no
beep sequence.
If the respirator is turned off and depressurized without pressing the
reset button twice, the SEMS PDA distress alarm will continue to moni-
tor motion in automatic mode. This means that the SEMS PDA dis-
tress alarm may be used to monitor motion after the respirator is turned
off and depressurized. Resetting the full alarm after the respirator has
been depressurized
will not turn off the SEMS PDA distress alarm.
The reset switch must be depressed twice after the flashing green
light sequence with no alarm condition to turn off the SEMS PDA dis-
tress alarm (the display will say “OFF” and two tone chirp should be
heard).
Remember, the loud audible alarm and flashing red lights can be turned
on at any time by pressing the manual alarm button and holding at
least two seconds.
WARNING
NO PERSONAL ALERT SAFETY SYSTEM, RES-
PIRATOR OR COMBINATION OF PERSONAL
ALERT SAFETY SYSTEM AND RESPIRATOR,
BY THEMSELVES, CAN PROVIDE COMPLETE
PROTECTION IN FIRE SITUATIONS. HOWEVER,
USING AN ALARM AND A RESPIRATOR IN
ACCORDANCE WITH THE REQUIREMENTS
OF AN ORGANIZED RESPIRATORY PROTEC-
TION PROGRAM IS ONE OF THE MANY
SAFETY PRECAUTIONS WHICH SHOULD BE
TAKEN TO AVOID PERSONAL INJURY OR
DEATH.