User's Manual
Page 21 of 40
P/N 595166-01 Rev A 1/09
DRAFT COPY
3. PASS DISTRESS ALARM
a. If the user is in distress or becomes immobile, the SEMS II PDA PASS
distress alarm will operate in conjunction with the Portable Unit. If the
distress alarm is activated, either by the user pressing and holding the
Red MANUAL ALARM button for at least two seconds, or from the user
being immobile for the required time duration, the Portable Unit will send
a distress signal to the Base Station. The distress alarm will override
all other messages and actions of the Portable Unit. The PASS icon
will ash RED quickly.
b. When the Base Station acknowledges the user’s distress signal by
selecting the “ACK PASS” button on the Base Station, the PASS icon
on the Control Console will ash slowly while continuing to sound the
distress alarm on the respirator. The distress alarm will continue until
the user shuts down the respirator.
4. EVACUATION
a. If the respirator users are required to leave the hazardous area, the
Base Station operator can send an evacuation message to the Portable
Units of logged-in respirator users. This message can be sent either to
all logged-in users or to selected logged-in users as chosen from the
list on the Base Station.
b. The Portable Unit will emit the alert sound and the EVAC icon will begin
ashing on the Control Console.
c. When an EVAC icon begins ashing on the Control Console, the res-
pirator user must press twice the Yellow RESET button on the Control
Console to respond to the evacuation message. The EVAC icon will
continue to ash at a slower rate until the user leaves the hazardous
area and shuts down the respirator.
5. WITHDRAW
a. The respirator user may choose to leave the hazardous area. Pressing
and holding the Blue WITHDRAW button for at least two seconds will
send that message to the Base Station. The "EVAC" icon on the Con-
trol Console will ash YELLOW quickly as the WITHDRAW message
appears on the Base Station.
b. When the Base Station receives a user WITHDRAW message, the
Base Station Operator selects the ACK W/D button on the side bar.
c. After the Base Station acknowledges, the “EVAC” symbol on the COntrol
Console will remain ashing slowly until user leaves hazardous area
and shuts down the respirator.
6. Air Supply Cylinder Pressure
a. When the cylinder reaches one quarter of full pressure, the SEMS
II PDA sounds a LOW AIR warning with an audible alarm as well as
transmitting a LOW AIR alert to the Base Station.
b. The LOW AIR alarm will continue to operate until the respirator is shut
down. This LOW AIR alarm is in addition to the other end-of-service
indicators on the respirator.
7. Shutdown
a. After leaving the hazardous area and conrming that respirator use is
no longer required, doff the respirator according the user instructions
provided with the respirator.
b. Close the cylinder valve.
c. Press the Yellow RESET button twice.
d. The Control Console will sound the alert tone. The SEMS II PDA Por-
table Unit is now off.
PASS ICON
EVAC/WITHDRAW
ICON
EVAC/WITHDRAW
ICON