Scott SEMS User Manual
OPERA TION AND MAINTENANCE INSTRUCTIONS
SEMS™
SCOTT ELECTRONIC MANAGEMENT SYSTEM
PDA–PERSONAL DISTRESS ALARM AND
PDR–PERSONAL DISTRESS RECEIVER
USER ACCOUNTABILITY SYSTEM AND PERSONAL DISTRESS ALARM
FOR THE SCOTT AIR-PAK® 2.2 / 3.0 / 4.5 /
SELF-CONTAINED BREATHING APPARATUS
FIFTY
WARNING
THE SCOTT SEMS USER ACCOUNTABILITY SYSTEM IS INTENDED FOR USE WITH SCOTT
SELF-CONTAINED BREATHING APPARATUS (SCBA) WHICH MAY SUPPORT HUMAN LIFE
IN HAZARDOUS ATMOSPHERES. FAILURE TO CAREFULLY READ AND UNDERSTAND
THE FOLLOWING INSTRUCTIONS MAY RESULT IN SERIOUS INJURY OR DEATH TO THE
SCBA USER.
USE OF A RESPIRATOR INTEGRATED WITH THE SEMS USER ACCOUNTABILITY SYSTEM
WILL REQUIRE MODIFICATION OF THE RESPIRATOR "REGULAR OPERATIONAL
INSPECTION PROCEDURES" AND WILL REQUIRE TRAINING OF THE RESPIRATOR USER
IN THE USE OF SUCH RESPIRATORS.
THE FOLLOWING INSTRUCTIONS SUPPLEMENT BUT DO NOT REPLACE THE OPERATING
AND MAINTENANCE INSTRUCTIONS SUPPLIED WITH EACH RESPIRATOR.
1
WARNING
READ AND UNDERSTAND THIS COMPLETE INSTRUCTION MANUAL BEFORE USING A
RESPIRATOR EQUIPPED WITH A SEMS ACCOUNTABILITY SYSTEM. FAILURE TO USE THE
SEMS ACCOUNTABILITY SYSTEM IN ACCORDANCE WITH THESE INSTRUCTIONS MAY
LEAD TO CIRCUMSTANCES WHICH COULD RESULT IN SERIOUS INJURY OR DEATH.
BASE
STA TION
SENSOR MODULE
PORT ABLE UNIT
FIGURE 1
DESCRIPTION
The SCOTT Electronic Management System (SEMS) provides a
method of communication between respirator users in a hazardous
area and a designated person outside of the hazardous area. The
SCOTT SEMS PDA Personal Distress Alarm is an optional accessory
which is intended to be integrated only with SCOTT AIR-PAK® 2.2 /
Fifty
3.0 / 4.5 /
self-contained breathing apparatus (SCBA). The SEMS
equipment consists of individual SEMS PDA Portable Units with Control Console attached to the SCOTT AIR-PAK self-contained breathing apparatus and a SEMS PDR Personal Distress Receiver Base
Station. The equipment can transmit and receive specific information
between the respirator users and the Base Station operator. The specific information consists of user identification and status as well as
alerts for evacuation. Complete training in the use of the SEMS equipment is required before actual use in a hazardous environment.
The SEMS PDA Control Console is integrated into the SCOTT AIRPAK SCBA as a part of the remote air pressure gauge which hangs
over the right shoulder of the respirator user. The Control Console
also operates the PERSONAL ALERT SAFETY SYSTEM (P ASS) distress alarm intended to assist in locating a respirator user who is incapacitated or in need of assistance. The Control Console has a set of
status lights, a four character digital display , a dial air pressure gauge,
and three control buttons which can easily be pressed with gloved
hands. Power is supplied by batteries in both the Control Console and
in the SEMS PDA distress alarm battery compartment on the SCBA
backframe.
2
NOTE
USE ONL Y IN ACCORDANCE WITH NFPA 1500,
"
STANDARD ON FIRE DEPARTMENT
OCCUPATIONAL SAFETY AND HEALTH
PROGRAM."
The SEMS PDA
distress alarm warns the user when the air supply
cylinder has reached 50% of its full capacity and also functions as an
electronic end of service time indicator for the respirator by sounding
an alarm when the air supply cylinder has been depleted to 25% of its
full capacity. The Control Console digital display shows the approximate cylinder pressure. Details of the end of service time indicator
operation are also discussed in the Operation and Maintenance instructions provided with the respirator.
The SEMS PDR Base Station is a compact battery operated device
that can be tripod mounted or carried by a strap. A digital display
provides information about status of the respirator users who are logged
onto the Base Station. Simple dedicated function buttons control the
transmission and receipt of signals with the respirator users. The Base
Station can be easily interfaced with a computer for programming and
advanced applications.
When a respirator user opens the cylinder valve and begins use of an
AIR-PAK SCBA equipped with the SEMS PDA, the Portable Unit will
automatically begin to operate. If the SEMS PDR Base Station is
present at time of entry, the SEMS PDA must log-in with the Base
Station before entry into the hazardous area. Contact between the
SEMS PDA Portable Unit and the Base Station will continue until the
respirator user terminates use of the SCBA.
Each installation of SEMS equipment operates as a distinct set of
Portable Units and Base Station that transmit and receive on a single
frequency. If another installation of SEMS equipment is used in the
same area, the operation of each group will remain discreet and
separate between Portable Units and Base Stations. The SEMS
equipment operates between 453.0375 and 465.6375 MHz on radio
channels defined in FCC Title 47 (Telecommunications) Part 90 section 20, Limitation (27) and requirement Part 90.238. Programming
of the Portable Units and Base Station is essential and must be
performed prior to training and use. See SEMS Programming Guide,
SCOTT P/N 89506-01 for complete details of programming the SEMS
equipment.
The installation of the SCOTT SEMS PDA distress alarm is approved
by the National Institute of Occupational Safety and Health (NIOSH)
Fifty
on all models of SCOTT AIR-PAK 2.2 / 3.0 / 4.5 /
SCBA.
The SCOTT SEMS PDA distress alarm Portable Unit, when added to
a SCOTT Air-Pak respirator, as shown in FIGURE XX, consists of a
Sensor Module with battery compartment mounted to the bottom of
the respirator backframe, a pressure gauge with transducer, and a
Control Console mounted on the wearer’s right shoulder strap at the
pressure gauge location. The SEMS PDA Portable Unit requires three
(3) nine volt batteries to operate: two in the Sensor Module on the
backframe and one in the Control Console.
Installation of the SCOTT SEMS PDA distress alarm requires some
disassembly of the respirator and should only be performed by an
authorized service center. Contact SCOTT HEALTH AND SAFETY,
Monroe, NC at 1-800-247-7257 for details.
WARNING
NO PERSONAL ALERT SAFETY SYSTEM, RESPIRATOR OR COMBINATION OF PERSONAL
ALERT SAFETY SYSTEM AND RESPIRATOR,
BY THEMSELVES, CAN PROVIDE COMPLETE
PROTECTION IN FIRE SITUA TIONS. HOWEVER,
USING AN ALARM AND A RESPIRATOR IN
ACCORDANCE WITH THE REQUIREMENTS
OF AN ORGANIZED RESPIRAT OR Y PROTECTION PROGRAM IS ONE OF THE MANY
SAFETY PRECAUTIONS WHICH SHOULD BE
TAKEN TO AVOID PERSONAL INJURY OR
DEATH.
3
DETECTING AND A VOIDING
RADIO FREQUENCY INTERFERENCE:
When any electronic device is adversely affected by radio waves, Radio
Frequency Interference (RFI) is said to have occurred. All electronic
devices like the SEMS PDA distress alarm may be subject to the effects of RFI. Radio transmissions from the antennas of radios including those used by fire fighters, police and other public safety related
personnel may produce RFI in the SEMS PDA distress alarm. RFI
may occur while the radio is transmitting if the respirator equipped
with the SEMS PDA distress alarm is in close proximity to a base
station or high-powered vehicle mounted radio, or if the antenna of a
personal portable hand held radio is touching or within six (6) inches
of the Control Console or Sensor Module of the SEMS PDA distress
alarm (See FIGURE 4).
Be aware of the symptoms of RFI. A SEMS PDA distress alarm affected by RFI may temporarily give false indications such as the sudden sounding of the loud continuous three-tone chirp of the full alarm.
In some instances the lights on the Control Console may flash without
sounding the alarm. In rare circumstances, an alarm which was sounding may stop.
If the SEMS PDA exhibits any of the symptoms of RFI, identify the
source of the RFI and do the following:
· If the symptoms of RFI occur when standing near a base sta-
tion transmitting antenna or a truck mounted radio antenna,
move away from the antenna until the symptoms stop.
· If the symptoms of RFI occur while transmitting on a hand-
held radio, move the radio away from the SEMS PDA.
CHECK THE CONTROL CONSOLE AND BE CERT AIN THE GREEN
LIGHT IS FLASHING NORMALLY WHEN THE INTERFERENCE
STOPS, REGARDLESS OF THE SOURCE.
In normal usage with the air cylinder open, the SEMS PDA distress
alarm will typically resume normal operation after experiencing RFI.
In some circumstances after experiencing RFI, it may be necessary to
remove the unit from service. Remove and reinstall the battery to reset the unit (see BATTERY REPLACEMENT section of this instruction). Then inspect and return the unit to service.
W ARNING
KEEP THE ANTENNAS OF HAND-HELD
RADIOS AT LEAST SIX (6) INCHES AWAY
FROM THE CONTROL CONSOLE AND THE
SENSOR MODULE OF THE SEMS PDA
DISTRESS ALARM WHEN TRANSMITTING.
Close proximity of RADIO EQUIPMENT to the
SEMS PDA DISTRESS ALARM during radio
transmission may cause the unit to MALFUNCTION. FAILURE TO RECOGNIZE A MALFUNCTION OF THE SEMS PDA DISTRESS
ALARM AND TAKE THE PROPER CORRECTIVE
ACTION MAY RESULT A NONWORKING DISTRESS ALARM WHICH WILL NOT SOUND IF
THE USER STOPS MOVING AND LEAD TO SERIOUS INJURY OR DEATH.
W ARNING
USERS OF RESPIRATORS EQUIPPED WITH
THE SEMS PORTABLE UNIT MUST BE AW ARE
OF THE PROPER OPERATION OF THE
EQUIPMENT. FAILURE TO RECOGNIZE A
MALFUNCTION OF THE SEMS PORTABLE
UNIT AND TAKE PROPER CORRECTIVE ACTION
MAY RESULT IN SERIOUS INJURY OR DEATH.
4
If the SEMS PDA distress alarm is affected by RFI when the respirator
air supply is turned off or the cylinder is empty, the distress alarm
could be turned off during use. If this occurs, depress the RED Manual
Alarm Button and hold at least two seconds to activate the alarm.
IF THE SYMPTOMS OF RFI OCCUR, THE RESPIRATOR USER
MUST CHECK THE SEMS PDA DISTRESS ALARM TO VERIFY THA T
IT IS FUNCTIONING PROPERLY. IF THE GREEN LIGHT ON THE
CONTROL CONSOLE DOES NOT RESUME FLASHING IN THE
NORMAL MANNER AFTER EXPERIENCING THE SYMPTOMS OF
RFI, OR IF THE UNIT CONTINUES TO MALFUNCTION IN ANY
OTHER WAY , PROCEED T O A SAFE AREA, REMOVE THE RESPIRA TOR FROM SERVICE AND TAG FOR REPAIR BY AUTHORIZED
PERSONNEL.
Minimize or eliminate the effects of RFI by protecting the SEMS PDA
with the following steps:
• Maintain a safe distance from a base station transmitting antenna
or a truck mounted radio antenna.
• Keep the antennas of hand held radios at least six (6) inches away
from the CONTROL CONSOLE or the SENSOR MODULE (See
FIGURE 2).
KEEP RADIO ANTENNAS A T LEAST
SIX (6) INCHES FROM THESE AREAS
SENSOR
MODULE
FIGURE 2
RFI WARNING AREAS
CONTROL
CONSOLE
WARNING
BE AWARE OF THE POTENTIAL EFFECT OF
RADIO TRANSMISSIONS FROM BASE STA TION
OR TRUCK MOUNT RADIOS WHEN USING A
RESPIRATOR WITH THE SEMS PDA DISTRESS
ALARM. Close proximity of RADIO EQUIPMENT
to the SEMS PDA DISTRESS ALARM during radio transmission may cause the unit to MALFUNCTION. FAILURE TO RECOGNIZE A MALFUNCTION OF THE SEMS PDA DISTRESS
ALARM AND TAKE THE PROPER CORRECTIVE
ACTION MAY RESULT A NONWORKING DISTRESS ALARM WHICH WILL NOT SOUND IF THE
USER STOPS MOVING AND LEAD TO SERIOUS
INJURY OR DEATH.
5
FCC NOTICE
This equipment has been tested and found to comply with the requirements of United States Federal Communications Commission,
Code of Federal Regulations, FCC title 47, part 90 Section 20, limitation (27) and requirement Part 90.238 over frequency range 453.0375
to 465.6375 MHz, as well as FCC Section 1.1310 for Occupational/
Controlled Exposure limits.
If the SEMS Base Station or Portable Unit has been damaged, DO
NOT use this equipment. Maintenance or repair of this equipment
must only be performed by an authorized SCOTT service center.
Unauthorized service may void the manufacturers warranty and may
cause damage to the equipment. Use only Scott authorized accessories, cables, and power connectors. Consult the operating and service manuals for instructions on battery replacement, battery maintenance, and use of accessory cables.
RADIO FREQUENCY INTERFERENCE (RFI)
When any electronic device is adversely affected by radio waves, Radio Frequency Interference (RFI) is said to have occurred. All electronic devices like the SEMS PDA distress alarm may be subject to the
effects of RFI, most of which are temporary in nature. Users of the
SCOTT AIR-P AK SCBA with the integrated SEMS PDA distress alarm
must be familiar with the normal operation of the distress alarm and
must also be familiar with how to identify and avoid the effects of RFI
(see DETECTING AND A VOIDING RADIO FREQUENCY INTERFERENCE on page 14). If RFI occurs to the SEMS PDA distress alarm, it
may be caused by transmissions from two-way radio base stations or
high-powered vehicle mounted radios or transmissions from hand-held
or personal radios where the radio antenna is touching or very close to
(less than 6 inches from) components of the SEMS PDA distress alarm.
INTRINSICALL Y SAFE LISTING
The SEMS PDA distress alarm, when installed on a SCOTT respirator,
is listed as intrinsically safe in Class I Division 1 Groups A, B, C and D
hazardous locations by Entela Testing Laboratories. T o maintain Intrinsic Safe Listing, the respirator with SEMS PDA distress alarm must be
inspected regularly per the following Regular Operational Inspection
procedures. SEMS PDA distress alarm components must not be tampered with in any manner. Only batteries of the type indicated on the
Sensor Module label and in the Battery Replacement instructions may
be installed. The battery compartments must only be opened in an
area known to be free of flammable or explosive hazards.
PROGRAMMING
Before SEMS equipment can be put into service, the Base Station and
each Portable Unit must be programmed to work with each other. The
amount and detail of the information programmed in will depend on the
requirements of the organization using the SEMS. At a minimum, the
equipment must be setup so that the Base Station will recognize each
Portable Unit in the group and associate an identity of the respirator
user with the Portable Unit. In this way, specific users who have entered a particular region of the hazardous area can be contacted individually to evacuate to a safe atmosphere. In addition, if a Portable Unit
transmits a DISTRESS SIGNAL, the Base Unit will display the identity
of the respirator user. See SEMS Programming Guide, SCOTT P/N
89506-01 for complete details of programming the SEMS equipment.
W ARNING
RADIO FREQUENCY INTERFERENCE (RFI)
MA Y CAUSE A MALFUNCTION OF THE SEMS
PDA DISTRESS ALARM. USERS OF RESPIRATORS EQUIPPED WITH THE SEMS PDA
DISTRESS ALARM MUST BE AW ARE OF THE
PROPER OPERATION OF THE DISTRESS
ALARM. FAILURE TO RECOGNIZE A MALFUNCTION OF THE SEMS PDA DISTRESS
ALARM AND TAKE PROPER CORRECTIVE
ACTION MAY RESULT IN SERIOUS INJURY OR DEATH.
6
BASIC FUNCTIONS OF THE SEMS EQUIPMENT
The SEMS equipment has two primary functions:
· Personal Alert Safety System (PASS) Distress Alarm
· Evacuation Signal
1. The PASS Distress Alarm is joined to the SEMS PDA distress
alarm operation. The Portable Unit will send a signal to the Base
Station when the SEMS PDA distress alarm goes into full alarm.
Activation of the full alarm can be either by manual activation of
the user or by automatic activation from lack of user movement
for the time period set on the SEMS PDA distress alarm. Once
acknowledged by the Base Station operator, “PASS” will appear
on the Control Console display.
2. The Evacuation Signal is sent from the Base Station to the SEMS
PDA Portable Unit. It can be handled one of two ways:
a) All-Call Signal: The Base Station will send a signal to all SEMS
PDA Portable Units logged on to it. When received, the Control Console will display “EVAC” and sound an audible signal.
Every respirator user must acknowledge this signal by press-
twice
ing
will continue to read “EVAC” until user leaves hazardous area
and shuts down the respirator.
b) Selective Evacuation Alarm The Base Station will send a sig-
nal to only one individual unit logged on to it. When received,
the Control Console will display “EVAC” and sound an audible
alarm. The selected respirator user must acknowledge this signal by pressing
sole. Display will continue to read “EVAC” until user leaves
hazardous area and shuts down the respirator.
the RESET button on the Control Console. Display
twice
the RESET button on the Control Con-
Other additional functions include:
1. The Contact Signal is an automatic signal sent by the Base Sta-
tion to every Portable Unit that is logged in to the Base Station.
Any respirator user who does not return an acknowledgment to
the Contact Signal within 120 seconds will be shown on the Base
Station as “OUT OF RANGE.”
2. Air supply cylinder levels are monitored by the Portable Unit and
the Base Station. The user can press and hold the RESET button at any time for a digital display of the remaining air supply
cylinder pressure. The approximate cylinder pressure is displayed.
The user receives a “½ AIR” warning in the display with an audible alarm when the cylinder reaches one-half of full pressure.
The user also receives a “LOW AIR” warning in the display with
an audible alarm when the cylinder reaches one quarter of full
pressure. The “LOW AIR” warning is also transmitted to the Base
Station. The “LOW AIR” alarm will continue to operate until the
respirator is shut down.
3. Users can inform the Base Station that they are withdrawing from
the hazardous atmosphere by pressing and holding the “WITHDRAW” button on the Control Console for at least two seconds.
The display will read “W–D” until the user leaves the hazardous
area and shuts down the respirator.
7
OPERA TION 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 respirator 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 Module. 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.
MANUAL
WITHDRAW
BUTTON (BLUE
INDICATOR)
RED SIGNAL
LIGHT
GREEN SIGNAL
LIGHT
WITHDRAW
ALARM BUTTON
(RED INDICAT OR)
MANUAL
ALARM
RESET
RESET
BUTTON
(YELLOW
INDICATOR)
CONSOLE
DISPLAY
W ARNING
THE SEMS PDA DISTRESS ALARM IS INTENDED TO ASSIST IN LOCATING A PERSON WHO MAY BE IN A LIFE THREATENING SITUATION. FAILURE TO FOLLOW
THE INSTRUCTIONS FOR OPENING,
CHANGING ALL BATTERIES AND RE-CLOSING BOTH B ATTERY 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 FLAMMABLE OR EXPLOSIVE ATMOSPHERE POSSIBLY RESULTING IN SERIOUS INJURY OR
DEATH.
W ARNING
USERS OF RESPIRATORS EQUIPPED WITH
THE SEMS PDA DISTRESS ALARM MUST BE
AWARE OF THE PROPER OPERATION OF
THE DISTRESS ALARM. FAILURE TO RECOGNIZE A MALFUNCTION OF THE SEMS PDA DISTRESS ALARM AND TAKE PROPER CORRECTIVE ACTION MA Y RESULT IN SERIOUS INJURY 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 Module once every 2 seconds and the green light on the control module 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 REPLACEMENT section of this instruction. If a low battery condition appears while the respirator is in use, the SEMS PDA distress alarm will
continue to operate for a period of time greater then the longest duration cylinder available for the respirator.
8
Once activated, the SCOTT SEMS PDA distress alarm will remain
activated until:
1. The respirator air cylinder is turned off with the residual air pres-
sure purged from the regulator
AND
2. The reset button on the control module has been pressed twice.
In the automatic mode the SCOTT SEMS PDA distress alarm con-
stantly monitors motion of the respirator backframe. The motion sensor is located in the Sensor Module along with the audible alarm. If
the Sensor Module does not sense motion of the respirator for 20
seconds the SEMS PDA distress alarm will signal a pre-alarm condition. If there is still no motion of the respirator for the next 12 seconds
the full alarm will sound.
PRE ALARM:
Once the respirator is pressurized, the SEMS PDA distress alarm will
automatically sound a pre-alarm if the respirator remains motionless
for more than 20 seconds.
When the pre-alarm occurs, the green flashing lights on the Control
Console and backframe are replaced by bright red lights which flash
approximately once a second and are accompanied by an ascending/
descending audible tone which increases in volume during the prealarm cycle.
If the user is
not incapacitated or not in need of assistance, the prealarm is normally reset by movement of the respirator. When reset,
the flashing red lights will be replaced by the flashing green lights and
the ascending/descending tone will stop.
A pre-alarm may also be reset by pressing and holding the reset button on the side of the Control Console until three (3) quick audible
chirps are heard and the red flashing lights on the Control Console
and backframe are replaced by the green flashing lights.
Remember that the motion sensor is in the Sensor Module under the
air cylinder valve and not in the Control Console so that actual movement of the respirator backframe is required for reset. Shaking the
Control Console
will not reset the SEMS PDA distress alarm .
WARNING
USERS OF RESPIRATORS EQUIPPED WITH
THE SEMS PDA DISTRESS ALARM MUST BE
AWARE OF THE PROPER OPERATION OF
THE DISTRESS ALARM. IF THE GREEN LIGHT
IS NOT FLASHING NORMALL Y, OR IF THE UNIT
EXHIBITS ANY OTHER SIGNS OF A MALFUNCTION WITHOUT THE USER TAKING PROPER
CORRECTIVE ACTION, IT MAY LEAD TO CIRCUMSTANCES THAT RESULT IN SERIOUS INJURY OR DEATH.
FULL ALARM:
If the user is incapacitated or in need of assistance and can not move,
the SEMS PDA distress alarm will go into full alarm 12 seconds after
the pre-alarm starts.
Full alarm is indicated by a loud, almost continuous 3 tone chirp from
the Sensor Module accompanied by the flashing of the red signal lights
on the Control Console and “PASS” will appear in the display . The full
alarm condition can only be cleared by manually pressing twice on the
reset button, located on the side of the Control Console, shown in
FIGURE 3.
After the full alarm has been silenced by pressing the reset button,
releasing it and pressing it again, the SEMS PDA distress alarm will
remain activated with the green lights flashing once every 2 seconds.
In the activated or “automatic” mode, it will again go into pre-alarm
followed by full alarm unless there is movement of the respirator at
least once every 20 seconds as long as the respirator is pressurized.
9
Loading...