Operation of the Sems PDA Distress Alarm, Portable Unit

OPERATION OF THE SEMS PDA DISTRESS ALARM

With proper batteries installed and a charged air cylinder, the SEMS PDA distress alarm (PASS) is automatically activated when the respi- rator is pressurized by opening the cylinder valve of the respirator. If batteries are completely discharged or have not been installed, there will be no light or sound indicating that the unit will not work at all.

Activation is indicated by 3 quick audible chirps from the Sensor Mod- ule. On activation, a green light located on the Control Console, shown in FIGURE 3, will begin to flash approximately once a second. The SEMS PDA distress alarm is now in the automatic mode.

WARNING

THE SEMS PDA DISTRESS ALARM IS IN- TENDED TO ASSIST IN LOCATING A PER- SON WHO MAY BE IN A LIFE THREATEN- ING SITUATION . FAILURE TO FOLLOW

WITHDRAW

BUTTON (BLUE

INDICATOR)

WITHDRAW

MANUAL

ALARM BUTTON

RESET

(RED INDICATOR)

BUTTON (YELLOW INDICATOR)

MANUAL	RESET
	ALARM

T H E I N S T R U C T I O N S F O R O P E N I N G , CHANGING ALL BATTERIES AND RE-CLOS- ING BOTH BATTERY COMPARTMENTS MAY RESULT IN DAMAGE WHICH COULD CAUSE FAILURE OF THE PASS DURING A LIFE THREATENING EMERGENCY OR COULD CAUSE A FIRE OR EXPLOSION IN A FLAM- MABLE OR EXPLOSIVE ATMOSPHERE POS- SIBLY RESULTING IN SERIOUS INJURY OR DEATH.

RED SIGNAL

LIGHT

CONSOLE

GREEN SIGNAL LIGHT

DISPLAY

WARNING

USERS OF RESPIRATORS EQUIPPED WITH THE SEMS PDA DISTRESS ALARM MUST BE AWARE OF THE PROPER OPERATION OF THE DISTRESS ALARM. FAILURE TO RECOG- NIZE A MALFUNCTION OF THE SEMS PDA DIS- TRESS ALARM AND TAKE PROPER COR- RECTIVE ACTION MAY RESULT IN SERIOUS IN- JURY OR DEATH.

FIGURE 3

THE PORTABLE UNIT

If the any of the batteries needs replacement, the SEMS PDA distress alarm will indicate as follows:

•SENSOR MODULE – A single audible chirp from the Sensor Mod- ule once every 2 seconds and the green light on the control mod- ule will not flash.

•CONTROL CONSOLE – “BATT” will appear in the display but all other functions will operate normally.

If any low battery condition appears at start-up, immediately change all the batteries before use of the respirator. See the BATTERY RE- PLACEMENT section of this instruction. If a low battery condition ap- pears while the respirator is in use, the SEMS PDA distress alarm will continue to operate for a period of time greater then the longest dura- tion cylinder available for the respirator.