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.
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