3M SCOTT PAK-ALERT Troubleshooting guide

Page 1 of 24 P/N 595370-01 Rev B 07/19
THE 3M™ SCOTT™ PAK-ALERT DISTRESS ALARM
Including the Optional 3M SCOTT PAK-TRACKER LOCATOR SYSTEM
Integrated with the 3M SCOTT AIR-PAK™ X3 PRO SCBA
FIGURE 1
3M SCOTT PAK-ALERT EQUIPPED WITH THE PAK-TRACKER LOCATOR SYSTEM INSTALLED ON
A 3M SCOTT AIR-PAK X3 PRO SCBA
SENSOR MODULE
ASSEMBLY
WITH PAK-TRACKER
LOCATOR SYSTEM
(RED LABELS)
OPTIONAL PAK-TRACKER
HAND HELD RECEIVER
OPERATION AND MAINTENANCE INSTRUCTIONS
WARNING
THE 3M SCOTT PAK-ALERT DISTRESS ALARM WITH THE PAK-TRACKER LOCATOR SYSTEM IS INTENDED
FOR USE WITH 3M 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 AN SCBA EQUIPPED WITH A 3M SCOTT PAK-ALERT DISTRESS ALARM WITH THE 3M SCOTT PAK-
TRACKER LOCATOR SYSTEM WILL REQUIRE MODIFICATION OF THE REGULAR OPERATIONAL INSPECTION
PROCEDURES FOR THE SCBA AND WILL REQUIRE TRAINING OF THE SCBA USER IN THE USE OF PASS-
EQUIPPED SCBAS.
THE FOLLOWING INSTRUCTIONS SUPPLEMENT BUT DO NOT REPLACE THE OPERATING AND MAINTENANCE
INSTRUCTIONS SUPPLIED WITH EACH SCBA.
NOTICE:
THESE USER INSTRUCTIONS ARE TO BE REMOVED
ONLY BY THE END USER.

Page 2 of 24
P/N 595370-01 Rev B 07/19
TABLE OF CONTENTS
DESCRIPTION..........................................................................................................................................................3
3M SCOTT PAK-ALERT DISTRESS ALARM ...................................................................................................3
OPTIONAL 3M SCOTT PAK-TRACKER LOCATOR SYSTEM.........................................................................3
DATA LOGGING FEATURE ...............................................................................................................................4
OPERATION OF THE DISTRESS ALARM ..............................................................................................................5
PRE-ALARM ......................................................................................................................................................6
FULL ALARM .....................................................................................................................................................6
MANUAL ALARM...............................................................................................................................................6
TO TURN OFF THE PAK-ALERT DISTRESS ALARM .....................................................................................7
LOW BATTERY ..................................................................................................................................................7
BATTERY TEST .................................................................................................................................................7
USE OF THE OPTIONAL LOCATOR SYSTEM .......................................................................................................8
USE AS PART OF AN ACCOUNTABILITY SYSTEM ........................................................................................8
PRINCIPLES OF OPERATION OF THE LOCATOR SYSTEM..........................................................................8
DETECTING AND AVOIDING RADIO FREQUENCY INTERFERENCE..................................................................9
REGULAR OPERATIONAL INSPECTION............................................................................................................. 11
INSPECTION OF THE DISTRESS ALARM ..................................................................................................... 11
INSPECTION OF THE DISTRESS ALARM WITH THE LOCATOR SYSTEM ...............................................13
OPERATION OF SENSOR MODULE LIGHTS ................................................................................................15
CLEANING, MAINTENANCE AND STORAGE .....................................................................................................16
MARKING AND PAINTING.....................................................................................................................................16
REPLACEMENT PARTS AND SERVICE ..............................................................................................................16
RETIREMENT CRITERIA AND CONSIDERATION................................................................................................16
BATTERY REPLACEMENT....................................................................................................................................17
DISTRESS ALARM PERFORMANCE SPECIFICATIONS.....................................................................................19
SAFETY LISTINGS.................................................................................................................................................20
FCC COMPLIANCE .........................................................................................................................................20
RADIO FREQUENCY INTERFERENCE (RFI).................................................................................................21
INTRINSICALLY SAFE LISTING .....................................................................................................................21
HAND HELD RECEIVER NON-INCENDIVE LISTING ....................................................................................21
QUESTIONS OR CONCERNS ...............................................................................................................................21
QUICK REFERENCE GUIDE .................................................................................................................................22

Page 3 of 24 P/N 595370-01 Rev B 07/19
OPTIONAL 3M SCOTT PAK-TRACKER LOCATOR SYSTEM
This unit may also be equipped with the optional 3M Scott Pak-Tracker
Locator System (the Locator System) as identied by the two round red
labels on the Sensor Module. See FIGURE 2.
1DuPont™ and Kevlar® are trademarks or registered trademarks of E.I. du Pont de Nemours
and Company.
WARNING
NO PERSONAL ALERT SAFETY SYSTEM, SCBA
OR COMBINATION OF PERSONAL ALERT
SAFETY SYSTEM AND SCBA, BY THEMSELVES,
CAN PROVIDE COMPLETE PROTECTION IN
FIRE SITUATIONS. HOWEVER, USING AN
ALARM AND AN SCBA IN ACCORDANCE WITH
THE REQUIREMENTS OF AN ORGANIZED
RESPIRATORY PROTECTION PROGRAM IS ONE
OF THE MANY SAFETY PRECAUTIONS WHICH
SHOULD BE TAKEN TO AVOID PERSONAL
INJURY OR DEATH.
WARNING
USERS OF SCBAS EQUIPPED WITH THE
DISTRESS ALARM MUST BE AWARE OF THE
PROPER OPERATION OF THE DISTRESS
ALARM. IF THE GREEN LIGHT IS NOT FLASHING
NORMALLY, 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.
WARNING
DO NOT OPERATE THIS EQUIPMENT WHILE
UNDER THE INFLUENCE OF DRUGS, ALCOHOL,
OR ANY MEDICATIONS OR SUBSTANCES
WHICH MAY AFFECT VISION, DEXTERITY,
OR JUDGMENT. USERS OF THIS EQUIPMENT
MUST BE IN GOOD PHYSICAL AND MENTAL
HEALTH FOR SAFE OPERATION. DO NOT USE
THIS EQUIPMENT WHEN FATIGUE PREVENTS
SAFE OPERATION. STAY ALERT WHEN
OPERATING THIS EQUIPMENT. INATTENTION
OR CARELESSNESS WHILE OPERATING THIS
EQUIPMENT MAY RESULT IN SERIOUS INJURY
OR DEATH.
FIGURE 2
PAK-TRACKER EQUIPPED SCBA
PAK-TRACKER
EQUIPPED SCBA
(RED LABELS ON
SENSOR MODULE)
3M SCOTT PAK-ALERT DISTRESS ALARM
The 3M Scott Pak-Alert (the distress alarm) is a Personal Alert Safety
System (PASS) intended to assist in locating an SCBA user who
is incapacitated or in need of assistance. The distress alarm, P/N
201160-SERIES, is for use on the 3M Scott Air-Pak X3 Pro SCBA. This
line of electronic accessories is for use by re ghters, rst responders,
domestic preparedness and law enforcement ofcers, as well as industrial
and hazardous material users.
The distress alarm consists of a Sensor Module mounted to the bottom of
the SCBA backframe and a control console mounted on the wearer’s right
shoulder strap at the pressure gauge location. The distress alarm reaches
full alarm in a total of thirty (30) seconds after detecting that the SCBA user
is motionless. The alarm may also be activated manually.
The distress alarm is approved by the National Institute of Occupational
Safety and Health (NIOSH) on models of 3M Scott Fire & Safety SCBAs
except as specied in the limitations of use on the SCBA approval label
and in the SCBA operating and maintenance instructions. The distress
alarm is approved under NFPA 1982, 2018 edition as a PASS device when
used on an approved 3M Scott Air-Pak X3 Pro SCBA.
NIOSH certied SCBAs are limited to a maximum weight of 35 lbs. When
the distress alarm is used with a one-hour duration 3M Scott Air-Pak X3
Pro SCBA, either the Kevlar® ber1wrapped (P/N 804222-01) or carbon-
wrapped (P/N 804723-XX) cylinder and valve assembly must be used
to keep the total weight under 35 lbs. limit. Using the distress alarm with
berglass wrapped one hour cylinder and valve assemblies (P/N 804107-
01) will exceed 35 lbs.
Installation of a distress alarm on a 3M Scott Air-Pak X3 Pro SCBA requires
some disassembly of the SCBA. Installation instructions are included with
the eld installation kit available from the company or your distributor.
DESCRIPTION
CAUTION
DO NOT USE A FIBERGLASS WRAPPED ONE
HOUR CYLINDER ON A MODEL 4.5 AIR-PAK
SCBA EQUIPPED WITH A DISTRESS ALARM
AS THE WEIGHT WILL EXCEED THE 35-LB
APPROVAL LIMIT FOR SCBA’S ESTABLISHED
BY NIOSH.

Page 4 of 24
P/N 595370-01 Rev B 07/19
WARNING
READ AND UNDERSTAND THIS ENTIRE MANUAL
AND THE PAK-TRACKER LOCATOR SYSTEM
MANUAL. TRAINING IS REQUIRED BEFORE
USE OF THIS EQUIPMENT IN A HAZARDOUS
SITUATION. THE TRAINING MUST INCLUDE
AN UNDERSTANDING OF THE LIMITATIONS
OF THE EQUIPMENT AND HOW TO INTERPRET
LOCATING INFORMATION, ALONG WITH
EXTENSIVE PRACTICE WITH THE SYSTEM
IN A VARIETY OF ENVIRONMENTS. USE
OF THIS EQUIPMENT MUST BE PART OF A
COMPLETE PERSONNEL ACCOUNTABILITY
SYSTEM. ALWAYS UPDATE TRAINING WITH
EACH NEW PIECE OF EQUIPMENT. USE OF A
PAK-TRACKER LOCATOR SYSTEM WITHOUT
PROPER TRAINING MAY PLACE THE USERS
AT HIGHER RISK IN DANGEROUS SITUATIONS,
WHICH COULD RESULT IN SERIOUS INJURY
OR DEATH.
The Locator System is a two-part electronic system consisting of a
transmitter integrated into the distress alarm, and a Hand Held Receiver
(HHR), which is a directional receiver used to locate the signal coming
from the transmitter. The transmitter is activated by the distress alarm. The
transmitter emits a radio signal with a unique ID number that can be tracked
using the HHR.
TRAINING AND PRACTICE IN REALISTIC EMERGENCY SIMULATIONS
IS REQUIRED BEFORE USE OF THIS EQUIPMENT. Users must become
thoroughly familiar with the operation and the limitations of the Locator
System before entering a potentially hazardous or life threatening situation.
The 3M Scott Pak-Tracker Locator System user instructions (P/N 595278-
01) contain essential information on the use of the Locator System and must
be used as the basis of training for use of the whole system including use
with a distress alarm equipped with the 3M Scott Pak-Tracker transmitter.
The Locator System user instructions include an overview of the system
operation, limitations of the system, as well as any user-level maintenance
for the Locator System equipment. Copies of the user instructions are
available from the company or your distributor.
The HHR serves as a directional
receiver to assist in leading the
rescue team to the activated
transmitter. By pointing the HHR in
the direction of the strongest relative
signal, the rescue crew can follow
the signal toward the SCBA user
who is incapacitated or in need of
assistance.
Use of the Locator System must
be part of a complete personnel
accountability system that includes
procedures for monitoring the
deployment and condition of all
users. Do not rely on the Locator
System as the only technique for
locating missing personnel. Failure
to use this equipment properly may
actually increase the time needed
to locate and rescue personnel.
FIGURE 3
PAK-TRACKER
HAND HELD RECEIVER (HHR)
DATA LOGGING FEATURE
SCBAs equipped with the SEMS II Pro Wireless SCBA Telemetry System
are compliant with NFPA 1982, 2018 Edition. The distress alarm includes
on-board electronics which maintain a running log of event data including
start-up, shut-down, and PASS activation. The Scott Connect Congure
software and the 3M Scott Pak-Link Programmer (P/N 200672-01) are
required to access the information. Instructions for downloading the data
log are included in the Scott Connect Congure Instruction Guide, which is
available within the Scott Connect Congure software application.
Downloading data from the SCBA will also do the following:
• Overwrite the programmed RFID card number; the PAK ID returns to
the default ID number.
• Reset the SCBAs internal clock to match the time settings on your PC.
NOTE
UPON RECEIVING 3M SCOTT AIR-PAK SCBA'S, UPDATE THE
ELECTRONICS TO THE LOCAL TIME ZONE USING SCOTT
CONNECT CONFIGURE SOFTWARE AND THE 3M SCOTT PAK-LINK
PROGRAMMER (P/N 200673-01).

Page 5 of 24 P/N 595370-01 Rev B 07/19
WARNING
THE INFORMATION BELOW IS MEANT TO
SUPPLEMENT, NOT REPLACE, THE TRAINING,
SUPERVISION, MAINTENANCE, AND
OTHER ELEMENTS OF YOUR ORGANIZED
RESPIRATORY PROTECTION PROGRAM.
SEE THE WARNING ON THE COVER OF THIS
DOCUMENT. FAILURE TO COMPLY WITH THESE
INSTRUCTIONS MAY RESULT IN SERIOUS
INJURY OR DEATH.
WARNING
USERS OF SCBAS EQUIPPED WITH THE
DISTRESS ALARM MUST BE AWARE OF THE
PROPER OPERATION OF THE DISTRESS ALARM.
FAILURE TO RECOGNIZE A MALFUNCTION OF
THE DISTRESS ALARM AND TAKE PROPER
CORRECTIVE ACTION MAY RESULT IN SERIOUS
INJURY OR DEATH.
OPERATION OF THE DISTRESS ALARM
With proper batteries and a charged air cylinder installed, the distress
alarm is automatically activated when the SCBA is pressurized by opening
the cylinder valve of the SCBA.
To indicate activation, the Sensor Module will sound 3 quick audible chirps
and the green light located on the control console will ash every three (3)
seconds. See FIGURE 4. The distress alarm is now in the automatic mode.
In the automatic mode, the distress alarm constantly monitors motion of the
SCBA backframe. The Sensor Module is located on the SCBA backframe
beneath the air cylinder and contains the motion sensor and the audible
alarm. If the Sensor Module does not sense motion of the SCBA for twenty
(20) seconds, the distress alarm will signal a pre-alarm condition. If there is
still no motion of the SCBA for the next twelve (12) seconds the full alarm
will sound.
The distress alarm will remain activated in the automatic mode until
turned OFF according to these instructions.
RESET
BUTTON
(YELLOW
BUTTON)
MANUAL ALARM
(RED BUTTON)
PASS
SIGNAL
LIGHTS
FIGURE 4
THE CONTROL CONSOLE
WARNING
IF THE DISTRESS ALARM DOES NOT OPERATE
AS DESCRIBED IN THIS SECTION, DO NOT USE
THE SCBA. SET IT ASIDE FOR REPAIR. USE
OF A PASS DEVICE THAT IS NOT WORKING
CORRECTLY MAY RESULT IN ITS FAILURE TO
ALARM WHEN NEEDED, WHICH MAY RESULT IN
SERIOUS PERSONAL INJURY OR DEATH

Page 6 of 24
P/N 595370-01 Rev B 07/19
PRE-ALARM
If the SCBA remains motionless for more than twenty (20) seconds, the
distress alarm will automatically sound a pre-alarm.
When the pre-alarm occurs, the green ashing light on the control console
is replaced by a bright red light that ashes in cadence with the pre-alarm
tone and is accompanied by an ascending/descending audible tone that
increases in volume during the pre-alarm cycle. In addition, the lights in the
Heads-Up Display ash alternately from one side to the other.
If the SCBA user is not incapacitated or not in need of assistance, move
the SCBA to reset the pre-alarm. When reset, the ashing red light will be
replaced by the ashing green light, the ascending/descending tone will
stop, and the Heads-up Display will return to showing the current cylinder
pressure.
Remember that the motion sensor is in the Sensor Module on the SCBA
backframe beneath the air cylinder. Actual movement of the SCBA
backframe is required to reset the pre-alarm. Shaking the control console
will not reset the distress alarm .
To manually reset the pre-alarm, press and hold the reset button on the
side of the control console until three (3) quick audible chirps are heard
and the red ashing light on the control console is replaced by the green
ashing light.
FULL ALARM
If the SCBA remains motionless through the twelve (12) second pre-alarm
cycle, the distress alarm will go into full alarm. This may indicate that the
user is incapacitated or in need of assistance and cannot move.
Full alarm is indicated by a loud, almost continuous 3-tone chirp from the
Sensor Module accompanied by the ashing red signal light on the control
console. Ten (10) seconds after the full alarm condition starts, the Locator
System transmitter will begin to transmit the unique ID number for the unit.
After an additional (10) second delay, the transmitter in the unit will begin
transmitting the unique ID number that can be received by the HHR. To
reset the full alarm condition, press the reset button twice. See FIGURE 4.
After the full alarm has been silenced by pressing the reset button twice,
the distress alarm will remain activated in the automatic mode with the
green light ashing once per second. As long as the SCBA is pressurized,
there must be movement of the SCBA at least every twenty (20) seconds
or the distress alarm will again go into pre-alarm followed by full alarm as
described previously.
MANUAL ALARM
If the SCBA user requires immediate assistance, pressing the manual
alarm button located on the front of the control console will immediately
sound the full alarm. See FIGURE 4. The manual alarm may be activated
at any time, even when the SCBA is not pressurized.
If the manual alarm is activated when the SCBA is not pressurized, press
the reset button twice to silence the alarm. The distress alarm will remain
on in automatic mode. To turn the unit off, press the reset twice again while
the unit is not in alarm mode. In manual alarm mode, the Locator System
transmitter in the unit will begin transmitting the unique ID number that can
be received by the HHR with NO delay.
Remember, the loud audible alarm and ashing red light can be turned on
at any time by pressing the manual alarm button on the control console.
WARNING
USERS OF SCBAS EQUIPPED WITH THE
DISTRESS ALARM MUST BE AWARE OF THE
PROPER OPERATION OF THE DISTRESS ALARM.
FAILURE TO RECOGNIZE A MALFUNCTION OF
THE DISTRESS ALARM AND TAKE PROPER
CORRECTIVE ACTION MAY RESULT IN SERIOUS
INJURY OR DEATH.

Page 7 of 24 P/N 595370-01 Rev B 07/19
WARNING
FAILURE TO REPLACE THE BATTERIES AND/
OR CONTINUING WITH MULTIPLE USES OF THE
SCBA AFTER THE LOW BATTERY CONDITION
HAS BEEN INDICATED BY THE DISTRESS
ALARM MAY RESULT IN FAILURE OF THE
DISTRESS ALARM DURING USE AND POSSIBLE
INJURY OR DEATH OF THE USER.
LOW BATTERY
In a low battery condition, the distress alarm will produce a single audible
chirp from the Sensor Module once every two (2) seconds and the green
light on the control module will not ash.
In low battery condition, the distress alarm will not emit the 3 beeps when
cylinder valve is activated.
While in low battery condition, the distress alarm will continue to operate
for a period of time greater than the longest duration cylinder available
for the SCBA. However, the batteries must be replaced before the SCBA
is used again. See the BATTERY REPLACEMENT section of these
instructions.
If batteries are completely discharged or have not been installed, there will
be no light or sound and the unit will not operate.
BATTERY TEST
To test the batteries, verify that the distress alarm is in the off condition
(cylinder valve closed with no ashing green LED on the control console).
Press and hold the reset button on the console.
A green light on the console will illuminate to indicate sufcient battery
power remaining. If a red light appears, the batteries must be replaced
before the SCBA is used again.
TO TURN OFF THE PAK-ALERT DISTRESS ALARM
When use of the SCBA with the distress alarm is no longer required, close
the cylinder valve on the SCBA and vent the residual air from the SCBA
system by opening the regulator purge valve. After all the air ow stops,
close the regulator purge valve and press the reset button twice to turn
off the distress alarm. If there is air pressure left in the system, the green
ashing light will continue to ash while a fteen-second beep sequence is
heard from the Sensor Module as the residual air bleeds from the system.
As soon as the air has completely bled from system, the unit will sound a
quick two-tone chirp and the distress alarm will be inactive. If there is no
pressure in the system when the RESET button is pressed twice, there will
be no fteen-second beep sequence. When the unit sounds a quick two-
tone chirp, the distress alarm is inactive. If there is any air pressure left in
the system, the distress alarm will return to the active mode.
If the SCBA cylinder valve is open and/or pressure remains in the SCBA,
the distress alarm cannot be turned off. Pressing the reset button when
the SCBA is pressurized will only reset an alarm condition and return the
distress alarm to automatic mode.
If the SCBA cylinder is turned off and depressurized without pressing
the reset button twice, the distress alarm will continue to monitor motion
in automatic mode. This means that the distress alarm may be used to
monitor motion after the SCBA is turned off and depressurized. Resetting
the full alarm after the SCBA has been depressurized will not turn off the
distress alarm. Press the reset switch twice with no alarm condition to turn
off the distress alarm (there will be no fteen (15) second beep sequence
and a two-tone chirp will be heard).

Page 8 of 24
P/N 595370-01 Rev B 07/19
USE AS PART OF AN ACCOUNTABILITY SYSTEM
TRAINING IS REQUIRED BEFORE USE. Refer to the user instructions
provided with your Locator System equipment for complete details on
the use of the Locator System. Use of this equipment must be part of a
complete personnel accountability system that includes procedures for
monitoring the deployment and condition of all users. Do not rely on the
Locator System as the only technique for locating missing personnel. A
Rapid Intervention or Rescue team using the HHR must have a minimum
of two (2) people. For their own safety, the team members must pay
attention to their surroundings at all times while using the Locator System.
The accountability system must include procedures for alerting the incident
commander and rescue teams when actuated transmitters or the missing
personnel have been found or when they have moved from their previous
location. It is the responsibility of the personnel accountability system to
allow for such contingencies without exposing individuals and teams to
unnecessary dangers.
WARNING
CONTINUED TRAINING AND PRACTICE IN A
VARIETY OF SITUATIONS IS ESSENTIAL TO
DEVELOPING THE SKILLS TO PROPERLY
INTERPRET THE INFORMATION PROVIDED BY
THE PAK-TRACKER LOCATOR SYSTEM. USE
OF THIS EQUIPMENT WITHOUT TRAINING AND
PRACTICE MAY JEOPARDIZE ALL PERSONNEL
INVOLVED, WHICH COULD LEAD TO SERIOUS
INJURY OR DEATH.
PRINCIPLES OF OPERATION OF THE LOCATOR SYSTEM
The Locator System is a two part electronic system consisting of the HHR
and transmitter. When a transmitter is activated, it sends out a radio signal
in all directions that is received by the HHR. Understanding how the radio
signal from a Transmitter behaves and how the HHR receives and displays
the strength of that signal is critical to understanding the operation of the
Locator System. Successful operation of the Locator System depends
heavily on the interpretation of the relative signal strength information
displayed on the HHR along with all other available information about the
possible location of the activated transmitter.
The HHR is very sensitive in responding to small differences in signal
strength. The relative strength of the Transmitter signal detected by the
HHR will vary depending on:
• The distance from the transmitter to the HHR,
• The path the transmitter signal has taken to get to the HHR,
• The materials between the transmitter and the HHR that may affect the
signal from the transmitter.
The user of the HHR must interpret the readings on the HHR display along
with other information, such as:
• training and knowledge in systematic search and rescue techniques
• their sense of sight (watch where you are going)
• their sense of sound (listen for an activated distress alarm)
• the deployment of the missing personnel
• knowledge of the building layout and building materials
Do not rely solely on the readings from the HHR to locate the activated
transmitter.
Refer to the user instructions provided with your Locator System equipment
for complete details on the use of the Locator System.
USE OF THE OPTIONAL LOCATOR SYSTEM WARNING
READ AND UNDERSTAND THIS ENTIRE
MANUAL AND THE 3M SCOTT PAK-TRACKER
LOCATOR SYSTEM MANUAL. TRAINING IS
REQUIRED BEFORE USE OF THIS EQUIPMENT
IN A HAZARDOUS SITUATION. THE TRAINING
MUST INCLUDE AN UNDERSTANDING OF THE
LIMITATIONS OF THE EQUIPMENT AND HOW
TO INTERPRET LOCATING INFORMATION,
ALONG WITH EXTENSIVE PRACTICE WITH THE
SYSTEM IN A VARIETY OF ENVIRONMENTS.
USE OF THIS EQUIPMENT MUST BE PART OF
A COMPLETE PERSONNEL ACCOUNTABILITY
SYSTEM. ALWAYS UPDATE TRAINING WITH
EACH NEW PIECE OF EQUIPMENT. USE OF
THE LOCATOR SYSTEM WITHOUT PROPER
TRAINING MAY PLACE THE USERS AT HIGHER
RISK IN DANGEROUS SITUATIONS, WHICH
COULD RESULT IN SERIOUS INJURY OR DEATH.

Page 9 of 24 P/N 595370-01 Rev B 07/19
WARNING
KEEP THE ANTENNAS OF HAND-HELD RADIOS
AT LEAST SIX (6) INCHES AWAY FROM THE
CONTROL CONSOLE AND THE SENSOR
MODULE OF THE DISTRESS ALARM WHEN
TRANSMITTING. CLOSE PROXIMITY OF RADIO
EQUIPMENT TO THE DISTRESS ALARM DURING
RADIO TRANSMISSION MAY CAUSE THE UNIT
TO MALFUNCTION. FAILURE TO RECOGNIZE A
MALFUNCTION OF THE DISTRESS ALARM AND
TAKE THE PROPER CORRECTIVE ACTION MAY
RESULT IN A NON-WORKING DISTRESS ALARM,
WHICH WILL NOT SOUND IF THE USER STOPS
MOVING AND MAY LEAD TO SERIOUS INJURY
OR DEATH.
WARNING
BE AWARE OF THE POTENTIAL EFFECT
OF RADIO TRANSMISSIONS FROM BASE
STATION OR TRUCK MOUNT RADIOS WHEN
USING AN SCBA WITH THE DISTRESS ALARM.
CLOSE PROXIMITY OF RADIO EQUIPMENT
TO THE DISTRESS ALARM DURING RADIO
TRANSMISSION MAY CAUSE THE UNIT TO
MALFUNCTION. FAILURE TO RECOGNIZE A
MALFUNCTION OF THE DISTRESS ALARM AND
TAKE THE PROPER CORRECTIVE ACTION MAY
RESULT IN A NON-WORKING DISTRESS ALARM,
WHICH WILL NOT SOUND IF THE USER STOPS
MOVING AND MAY LEAD TO SERIOUS INJURY
OR DEATH.
DETECTING AND AVOIDING 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 distress alarm may be subject to the effects of RFI. Radio
transmissions from the antennas of radios including those used by re
ghters, police and other public safety related personnel may produce
RFI in the distress alarm. RFI may occur while the radio is transmitting if
the SCBA equipped with the 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 distress alarm. See FIGURE 5.
Be aware of the symptoms of RFI. A 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 ash without sounding the alarm. In rare
circumstances, a sounding alarm may stop.
If the distress alarm 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 station
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 distress alarmT .
CHECK THE CONTROL CONSOLE AND BE CERTAIN THE GREEN
LIGHT IS FLASHING NORMALLY WHEN THE INTERFERENCE STOPS,
REGARDLESS OF THE SOURCE.
In normal usage with the air cylinder open, the distress alarm will typically
resume normal operation after experiencing RFI.
If the distress alarm is affected by RFI when the SCBA 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 to activate the
alarm.
IF THE SYMPTOMS OF RFI OCCUR, CHECK THE DISTRESS ALARM
TO VERIFY THAT 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 TO A SAFE AREA, REMOVE THE SCBA FROM
SERVICE AND TAG IT FOR REPAIR BY AUTHORIZED PERSONNEL.
Minimize or eliminate the effects of RFI by protecting the distress alarm
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 5.
If the HHR experiences RFI, it may be necessary to remove it from service.
In a known safe, non-hazardous area, remove and reinstall the batteries
to reset the unit (see the BATTERY REPLACEMENT section of the user
instructions provided with your Locator System equipment). Then inspect
and return the HHR to service.

Page 10 of 24
P/N 595370-01 Rev B 07/19
FIGURE 5
RFI WARNING AREAS
HAND HELD
RECEIVER (HHR)
SENSOR
MODULE
CONTROL
CONSOLE
KEEP RADIO ANTENNAS AT LEAST
SIX (6) INCHES FROM THESE AREAS

Page 11 of 24 P/N 595370-01 Rev B 07/19
Inspect and test the distress alarm along with the inspection and testing
of the SCBA before each use. Include the following inspection procedures
with the REGULAR OPERATIONAL INSPECTION procedures dened
in your SCBA instructions. If any malfunction of the SCBA or the distress
alarm is noted during the inspection, remove the SCBA from service and
tag it for repair by authorized personnel.
WARNING
FOLLOW REGULAR OPERATIONAL INSPECTION
PROCEDURE EXACTLY. IF THE DISTRESS
ALARM DOES NOT ACTUATE OR DOES NOT
OPERATE AS DESCRIBED, OR IF ANY OTHER
OPERATIONAL MALFUNCTION IS NOTED, DO
NOT USE THE SCBA.
WARNING
THE PROPER OPERATION OF THE LOCATOR
SYSTEM CANNOT BE CHECKED WITHOUT
CHECKING ALL COMPONENTS OF THE SYSTEM
TOGETHER. THE REGULAR OPERATIONAL
INSPECTION MUST INCLUDE THE HHR AND THE
TRANSMITTER WORKING WITH EACH OTHER
TO CONFIRM PROPER OPERATION. FAILURE TO
PROPERLY INSPECT THE COMPLETE SYSTEM
MAY RESULT IN FAILURE OF ONE COMPONENT,
WHICH COULD LEAD TO SERIOUS INJURY OR
DEATH.
CAUTION
THE PERFORMANCE PROPERTIES OF THE
DISTRESS ALARM CANNOT BE PROPERLY
TESTED IN THE FIELD.
WARNING
IN SEVERAL OF THE INSPECTION
PROCEDURES DESCRIBED, A FULL ALARM
WILL BE OBSERVED. THE FULL ALARM
CONDITION INCLUDES AN AUDIBLE TONE
THAT CAN EXCEED 95 DBA AT 3 METERS
(9.9 FT.). TO PREVENT POSSIBLE HEARING
DAMAGE DURING TEST, IMMEDIATELY RESET
THE ALARM ON VERIFICATION THAT IT IS
FUNCTIONING PROPERLY. WEAR HEARING
PROTECTION IF PROLONGED OR REPEATED
EXPOSURE TO A FULL ALARM CONDITION IS
ANTICIPATED.
REGULAR OPERATIONAL INSPECTION
INSPECTION OF THE DISTRESS ALARM
NOTE
IN SEVERAL OF THE INSPECTION PROCEDURES DESCRIBED, A
FULL ALARM WILL BE OBSERVED. THE FULL ALARM CONDITION
INCLUDES AN AUDIBLE TONE THAT CAN EXCEED 95 DBA AT 3
METERS (9.9 FT.). TO PREVENT POSSIBLE HEARING DAMAGE
DURING TEST, IMMEDIATELY RESET THE ALARM ON VERIFICATION
THAT IT IS FUNCTIONING PROPERLY. WEAR HEARING PROTECTION
IF PROLONGED OR REPEATED EXPOSURE TO A FULL ALARM
CONDITION IS ANTICIPATED.
NOTE
IF THIS INSPECTION IS DONE IN DIRECT SUNLIGHT IT MAY BE
HELPFUL TO SHADE THE LENS ON THE CONTROL CONSOLE
WITH YOUR HAND TO BE SURE THE LIGHTS ARE FLASHING AS
DESCRIBED.
1. While performing the visual inspection of the SCBA, visually inspect
all distress alarm enclosures, lenses, and wire conduits for cracks,
wear or other damage. If any damage is found, remove the SCBA from
service and tag it for repair by qualied personnel.
2. With the cylinder valve closed, press the manual alarm button, located
on the front of the distress alarm control console. The manual alarm
sounds a loud, almost continuous, 3-tone chirp accompanied by
ashing of the red signal light on the control console
3. Reset the manual alarm by pressing the reset button twice (fully
depress the reset button on the side of the control console, release,
and press again). The unit will sound three chirps and the green light
will ash.
4. Turn the distress alarm OFF by pressing the reset button twice again.
The unit will sound a two-tone chirp and the green light will go out.
5. Open the cylinder valve to pressurize the SCBA system. The
distress alarm sounds 3 quick chirps and the light on the control
console ashes green about once per second. The 3 chirps sound at
approximately the same time the VIBRALERT in the mask-mounted
regulator actuates briey. Make sure the air ow is stopped by pressing
the air saver/donning switch.
6. To check the pre-alarm, leave SCBA motionless for twenty (20)
seconds. The green ashing light is replaced by a red ashing light. An
ascending/descending tone sounds, increasing in volume. Leave the
SCBA motionless.
If your distress alarm is NOT equipped with the Locator System, perform
the REGULAR OPERATIONAL INSPECTION as dened on pages 11-12
of this instruction.
If your distress alarm IS equipped with the Locator System (as signied
by the two red labels on the Sensor Module), perform the REGULAR
OPERATIONAL INSPECTION as dened on pages 13-15 of this
instruction.

Page 12 of 24
P/N 595370-01 Rev B 07/19
7. After the pre-alarm condition occurs, check the pre-alarm reset. Within
twelve (12) seconds of the pre-alarm, move the SCBA to activate
the motion sensor. The distress alarm resets to the automatic mode.
The red ashing light is replaced by a green ashing light and the
ascending/descending tone stops.
8. Continue with regular operational inspection of SCBA as directed
by SCBA instructions or your approved respiratory protection plan
procedure. During the inspection, the SCBA must be moved or turned
every thirty (30) seconds or less to prevent the sounding of the full
alarm.
After completion of all SCBA checks and before turning off the
cylinder valve:
1. Check the manual reset of the pre-alarm. Leave the SCBA motionless
until pre-alarm condition occurs. Within twelve (12) seconds, press
and hold the reset button. Three (3) chirps sound. Release the reset
button. The distress alarm resets to the automatic mode and the
ashing red light is replaced by a ashing green light.
2. To check the full alarm, leave the SCBA motionless until the pre-alarm
condition occurs. Do not reset. The full alarm sounds a loud, almost
continuous, 3-tone chirp accompanied by ashing of the red signal light
on the control console.
3. Reset the manual alarm by pressing the reset button twice: Fully
depress the reset button on the side of the control console, release,
and press again. The loud alarm stops. The unit sounds three chirps
and the green light ashes. The unit resets to the automatic mode.
4. Finish all SCBA checks involving air ow and turn off the cylinder valve.
Use the purge valve to release all residual air pressure in the system.
With the cylinder valve closed (off):
1. Check the continuing operation of the distress alarm. The distress
alarm remains active with the green light ashing. Do not move the
SCBA; pre-alarm starts within twenty (20) seconds. Move the SCBA
slightly; pre-alarm resets, and the green light starts ashing again.
2. To turn the distress alarm off, press the reset button twice (press,
release and press again). If there is air pressure left in the system,
the green ashing light continues to ash while a fteen-second beep
sequence sounds from the Sensor Module as the residual air bleeds
from the system. As soon as the air has completely bled from system,
the unit sounds a quick two-tone chirp and the distress alarm will be
inactive. If there is no air pressure in the system when the RESET
button is pressed twice, there will be no beep sequence, only the quick
two-tone chirp. The distress alarm is now in the "OFF" condition. If
there is any air pressure left in the system, the distress alarm will return
to the active mode.
NOTE
IF THE LOW BATTERY INDICATION (ONE STEADY CHIRP EVERY
TWO (2) SECONDS WITH NO FLASHING LIGHTS) OCCURS AT ANY
TIME DURING REGULAR OPERATIONAL INSPECTION, DO NOT USE
THE SCBA. CHANGE THE BATTERIES IN THE SENSOR MODULE
IMMEDIATELY AND REPEAT THE REGULAR OPERATIONAL TEST
OR TAKE THE SCBA OUT OF SERVICE UNTIL THE BATTERIES
ARE CHANGED AND THE REGULAR OPERATIONAL TEST IS
SUCCESSFULLY PERFORMED.
WARNING
IF THE LOW BATTERY INDICATION (ONE
STEADY CHIRP EVERY TWO (2) SECONDS
WITH NO FLASHING LIGHTS) OCCURS AT
ANY TIME DURING REGULAR OPERATIONAL
INSPECTION, DO NOT USE THE SCBA. CHANGE
THE BATTERIES IN THE SENSOR MODULE
IMMEDIATELY AND REPEAT THE REGULAR
OPERATIONAL TEST OR TAKE THE SCBA
OUT OF SERVICE UNTIL THE BATTERIES ARE
CHANGED AND THE REGULAR OPERATIONAL
TEST IS SUCCESSFULLY PERFORMED.
FAILURE TO REPLACE THE BATTERIES AND/
OR CONTINUING WITH MULTIPLE USES OF THE
SCBA AFTER THE LOW BATTERY CONDITION
HAS BEEN INDICATED BY THE DISTRESS
ALARM MAY RESULT IN FAILURE OF THE
DISTRESS ALARM DURING USE AND POSSIBLE
INJURY OR DEATH OF THE USER.

Page 13 of 24 P/N 595370-01 Rev B 07/19
INSPECTION OF THE DISTRESS ALARM WITH THE LOCATOR
SYSTEM
Inspect and test the distress alarm equipped with the Locator System
along with the inspection and test of the SCBA before each use. Refer
to the user instructions provided with the Locator System for complete
details. Include the following inspection procedures with the REGULAR
OPERATIONAL INSPECTION procedures dened in your SCBA user
instructions. If any malfunction of the SCBA, the Locator System, or the
distress alarm is noted during the inspection, remove the SCBA from
service and tag it for repair by authorized personnel.
To test the Locator System transmitter, you must have an operating HHR.
WARNING
FOLLOW THE REGULAR OPERATIONAL
INSPECTION PROCEDURE EXACTLY. IF THE
DISTRESS ALARM DOES NOT ACTUATE OR
DOES NOT OPERATE AS DESCRIBED, OR IF
ANY OTHER OPERATIONAL MALFUNCTION IS
NOTED, DO NOT USE THE SCBA.
CAUTION
THE PERFORMANCE PROPERTIES OF THE
DISTRESS ALARM CANNOT BE PROPERLY
TESTED IN THE FIELD.
WARNING
THE PROPER OPERATION OF THE LOCATOR
SYSTEM CANNOT BE CHECKED WITHOUT
CHECKING ALL COMPONENTS OF THE SYSTEM
TOGETHER. THE REGULAR OPERATIONAL
INSPECTION MUST INCLUDE THE HHR AND THE
TRANSMITTER WORKING WITH EACH OTHER
TO CONFIRM PROPER OPERATION. FAILURE TO
PROPERLY INSPECT THE COMPLETE SYSTEM
MAY RESULT IN FAILURE OF ONE COMPONENT,
WHICH COULD LEAD TO SERIOUS INJURY OR
DEATH.
WARNING
IN SEVERAL OF THE INSPECTION PROCEDURES
DESCRIBED AFULL ALARM WILL BE OBSERVED.
THE FULL ALARM CONDITION INCLUDES AN
AUDIBLE TONE THAT CAN EXCEED 95 DBA AT
3 METERS (9.9 FT.). TO PREVENT POSSIBLE
HEARING DAMAGE DURING TEST, IMMEDIATELY
RESET THE ALARM ON VERIFICATION THAT IT
IS FUNCTIONING PROPERLY. WEAR HEARING
PROTECTION IF PROLONGED OR REPEATED
EXPOSURE TO A FULL ALARM CONDITION IS
ANTICIPATED.
NOTE
IN SEVERAL OF THE INSPECTION PROCEDURES DESCRIBED, A
FULL ALARM WILL BE OBSERVED. THE FULL ALARM CONDITION
INCLUDES AN AUDIBLE TONE THAT CAN EXCEED 95 DBA AT 3
METERS (9.9 FT.). TO PREVENT POSSIBLE HEARING DAMAGE
DURING TEST, IMMEDIATELY RESET THE ALARM ON VERIFICATION
THAT IT IS FUNCTIONING PROPERLY. WEAR HEARING PROTECTION
IF PROLONGED OR REPEATED EXPOSURE TO A FULL ALARM
CONDITION IS ANTICIPATED.
NOTE
IF THIS INSPECTION IS DONE IN DIRECT SUNLIGHT IT MAY BE HELPFUL
TO SHADE THE LENS ON THE CONTROL CONSOLE WITH YOUR HAND
TO BE SURE THE LIGHTS ARE FLASHING AS DESCRIBED.
1. While performing the visual inspection of the SCBA, visually inspect
all distress alarm enclosures, lenses, and wire conduits for cracks,
wear or other damage. If any damage is found, remove the SCBA from
service and tag for repair by qualied personnel.
2. Turn on the HHR according to the operating instructions provided with
the unit. Position the HHR nearby.
3. With the cylinder valve closed, press the manual alarm button, located
on the front of the distress alarm control console.
• The manual alarm sounds a loud, almost continuous, 3-tone chirp
accompanied by ashing of the red signal light on the control
console.
• The HHR sounds an alarm and displays the identication number
of the distress alarm, which appears on the label on the Sensor
Module or the Control Console. Use the SCROLL button on the
HHR to highlight the active ID number and press the ENTER
button on the HHR to select the displayed ID number. Point the
unit directly at and in close proximity to the SCBA. The signal
strength displayed will be at its highest value.
4. Reset the manual alarm by pressing the reset button twice (fully
depress the reset button on the side of the control console, release,
and press again).
• The unit will sound three chirps, and the green light ashes.
• The HHR resets to its non-alarm state.
5. Turn the distress alarm off by again pressing the reset button twice.
The unit will sound a two-tone chirp, and the green light will go out.
6. Open the cylinder valve to pressurize the SCBA system. The
distress alarm sounds 3 quick chirps, and the light on the control
console ashes green about once per second. The 3 chirps sound at
approximately the same time the VIBRALERT in the mask-mounted
regulator actuates briey. Make sure the air ow is stopped by pressing
the air saver/donning switch.

Page 14 of 24
P/N 595370-01 Rev B 07/19
7. To check the pre-alarm, leave the SCBA motionless for twenty (20)
seconds. The green ashing light is replaced by a red ashing light. An
ascending/descending tone sounds, increasing in volume. Leave the
SCBA motionless.
8. After the pre-alarm condition occurs, check the pre-alarm reset. Within
twelve (12) seconds of the pre-alarm, move the SCBA to activate
the motion sensor. The distress alarm resets to the automatic mode.
The red ashing light is replaced by a green ashing light and the
ascending/descending tone stops.
9. Continue with regular operational inspection of SCBA as directed
by SCBA instructions or your approved respiratory protection plan
procedure. During the inspection the SCBA must be moved or turned
every thirty (30) seconds or less to prevent sounding of the full alarm.
After completion of all SCBA checks and before turning off the
cylinder valve:
1. Check the manual reset of the pre-alarm. Leave the SCBA motionless
until pre-alarm condition occurs. Within twelve (12) seconds press
and hold the reset button. Three (3) chirps sound. Release the reset
button. The distress alarm resets to the automatic mode and the
ashing red light is replaced by a ashing green light.
2. To check the full alarm, leave the SCBA motionless until the pre-alarm
condition occurs. Do not reset.
• The full alarm sounds a loud, almost continuous, 3-tone chirp
accompanied by ashing of the red signal light on the control
console.
• The HHR sounds an alarm and displays the identication number
of the distress alarm, which appears on the label on the Sensor
Module or the Control Console. Use the SCROLL button on the
HHR to highlight the active ID number and press the ENTER
button on the HHR to select the displayed ID number. Point the
unit directly at and in close proximity to the SCBA. The signal
strength displayed will be at its highest value.
3. Reset the manual alarm by pressing the reset button twice: Fully
depress the reset button on the side of the control console, release,
and press again.
• The loud alarm stops. The unit sounds three chirps, and the green
light ashes. The unit resets to the automatic mode.
• The HHR resets to its non-alarm state.
4. Finish all SCBA checks involving air ow and close the cylinder valve.
Use the purge valve to release all residual air pressure in the system.
With the cylinder valve closed (off):
1. Check the continuing operation of the distress alarm. The distress
alarm remains active with the green light ashing. Do not move the
SCBA; pre-alarm starts within twenty (20) seconds. Move the SCBA
slightly; pre-alarm resets, and the green light starts ashing again.
2. To turn the distress alarm off, press the reset button twice (press,
release and press again). If there is air pressure left in the system,
the green ashing light continues to ash while a fteen-second beep
sequence sounds from the Sensor Module as the residual air bleeds
from the system. As soon as the air has completely bled from system,
the unit sounds a quick two-tone chirp and the distress alarm will be
inactive. If there is no air pressure in the system when the RESET
button is pressed twice, there will be no beep sequence, only the quick
two-tone chirp. The distress alarm is now in the "OFF" condition. If
there is any air pressure left in the system, the distress alarm will return
to the active mode.

Page 15 of 24 P/N 595370-01 Rev B 07/19
NOTE
IF THE LOW BATTERY INDICATION (ONE STEADY CHIRP EVERY
TWO (2) SECONDS WITH NO FLASHING LIGHTS) OCCURS AT ANY
TIME DURING REGULAR OPERATIONAL INSPECTION, DO NOT USE
THE SCBA. CHANGE THE BATTERIES IN THE SENSOR MODULE
IMMEDIATELY AND REPEAT THE REGULAR OPERATIONAL TEST
OR TAKE THE SCBA OUT OF SERVICE UNTIL THE BATTERIES ARE
CHANGED AND THE REGULAR OPERATIONAL TEST IS SUCCESSFULLY
PERFORMED.
WARNING
IF THE LOW BATTERY INDICATION (ONE
STEADY CHIRP EVERY TWO (2) SECONDS
WITH NO FLASHING LIGHTS) OCCURS AT
ANY TIME DURING REGULAR OPERATIONAL
INSPECTION, DO NOT USE THE SCBA. CHANGE
THE BATTERIES IN THE SENSOR MODULE
IMMEDIATELY AND REPEAT THE REGULAR
OPERATIONAL TEST OR TAKE THE SCBA
OUT OF SERVICE UNTIL THE BATTERIES ARE
CHANGED AND THE REGULAR OPERATIONAL
TEST IS SUCCESSFULLY PERFORMED.
FAILURE TO REPLACE THE BATTERIES AND/
OR CONTINUING WITH MULTIPLE USES OF THE
SCBA AFTER THE LOW BATTERY CONDITION
HAS BEEN INDICATED BY THE DISTRESS
ALARM MAY RESULT IN FAILURE OF THE
DISTRESS ALARM DURING USE AND POSSIBLE
INJURY OR DEATH OF THE USER.
When performing the REGULAR OPERATIONAL INSPECTION, verify that
the Sensor Module lights are operating as described below:
OPERATION OF SENSOR MODULE LIGHTS
NOTE
THE YELLOW LIGHT IS A COMBINATION OF THE RED, GREEN, AND
WHITE LIGHTS THAT APPEARS YELLOW-ORANGE OR AMBER FROM
A DISTANCE. AT CLOSE RANGE THE INDIVIDUAL LIGHTS MAY BE
VISIBLE.
ACTION OR SITUATION BEHAVIOR OF LIGHTS
Start Air-Pak SCBA (i.e., open cylinder valve) Bright light, then ashing green light
Normal operation Flashing green light
Air cylinder between 1/2 and 1/3 full Flashing yellow light (2 quick ashes) every second
Air cylinder less than 1/3 full (low air) Flashing yellow light (alternately)
Low battery while unit is on Flashing yellow light once every 2 seconds
Shut down Off
Press reset button on control console with unit off (battery
test)
Good battery: Bright light, then ashing green light
Low battery: Bright light, then ashing red light
Press manual alarm button on control console with unit off Flashing red light (simultaneously)
Press reset button on control console during full alarm Flashing green light
PASS pre-alarm Flashing red light (alternately)
PASS full alarm Flashing red light (simultaneously)

Page 16 of 24
P/N 595370-01 Rev B 07/19
CLEANING, MAINTENANCE AND STORAGE
Cleaning, maintenance and storage of an SCBA with a distress alarm is
part of the normal SCBA CLEANING AND STORAGE and REGULAR
OPERATIONAL INSPECTION as described in the OPERATING AND
MAINTENANCE INSTRUCTIONS supplied with the SCBA.
Refer to the user instructions provided with the HHR for complete details of
cleaning and storage of the HHR.
Store the SCBA equipped with a distress alarm in accordance with the
OPERATION AND MAINTENANCE INSTRUCTIONS provided with the
SCBA. Do not store SCBAs equipped with distress alarms in the proximity
of radio antennas or radio transmitter base units. SCBAs equipped with =
distress alarms must be stored or transported at least two (2) feet away
from radio antennas on re equipment.
Clean the exterior of the control console while cleaning the exterior of
the SCBA by wiping with a damp sponge and thoroughly wiping dry. The
Signal Light lens on the front of the control console, shown in FIGURE 4,
should be cleaned after every use to insure maximum light intensity at all
times. Do not use solvents for cleaning or attempt to paint or apply decals
to the exterior surfaces of the SCBA.
If during use, the SCBA equipped with a distress alarm is suspected of
being contaminated by a hazardous substance, the contaminant must
be identied and properly removed or the contaminated component(s)
must be replaced before next use. Dispose of the contaminant or the
contaminated component(s) in accordance with applicable regulatory
requirements.
Except for the replacement of batteries, do not attempt to do
maintenance or to make adjustments or repairs beyond the scope of
this instruction manual without proper training.
MARKING AND PAINTING
Do not mark, etch, paint, or drill any of the distress alarm components or
housings in any way.
REPLACEMENT PARTS AND SERVICE
The distress alarm is covered by a one year warranty.
Consult your authorized 3M representative, distributor or service center as
to the availability of service and parts for the distress alarm. Replacement
batteries of the type designated are commercially available from your 3M
distributor and from most industrial battery distributors.
Except for the replacement of batteries, do not attempt to do
maintenance or to make adjustments or repairs beyond the scope of
this instruction manual without proper training
RETIREMENT CRITERIA AND CONSIDERATION
Retirement criteria and consideration shall be determined by 3M trained
and Certied Overhaul Technicians.

Page 17 of 24 P/N 595370-01 Rev B 07/19
CAUTION
THE SCBASYSTEM MUST NOT BE PRESSURIZED
WHEN BATTERIES ARE BEING INSTALLED.
DAMAGE TO THE ELECTRONIC COMPONENTS
MAY RESULT IF BATTERIES ARE INSTALLED
WHEN THE SYSTEM IS PRESSURIZED.
An SCBA equipped with a distress alarm requires six (6) “AA” cell batteries
for operation. The six (6) batteries power the Heads-Up Display, the
distress alarm, and the Locator System transmitter. The batteries should be
replaced only by a trained maintenance technician in a clean area known
to be nonammable.
NOTE
UPON RECEIVING 3M SCOTT AIR-PAK SCBA'S, UPDATE THE
ELECTRONICS TO THE LOCAL TIME ZONE USING SCOTT
CONNECT CONFIGURE SOFTWARE AND THE 3M SCOTT PAK-LINK
PROGRAMMER (P/N 200673-01).
Replace batteries as follows:
1. Close the SCBA cylinder valve. Open the regulator purge valve to
let out all the trapped air. Close the regulator purge valve. Press the
reset button twice. If there is air pressure left in the system, the green
light will continue to ash while a fteen-second beep sequence sounds
from the Sensor Module as the residual air bleeds from the system.
As soon as the air has completely bled from system, the unit sounds a
quick two-tone chirp and the 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 there is air pressure in the system,
the distress alarm will return to the active mode.
NOTE
ALWAYS BE SURE THAT CYLINDER VALVE IS OFF AND THE PASS
DEVICE IS COMPLETELY INACTIVE BEFORE CHANGING BATTERIES.
NEVER REMOVE OR REPLACE BATTERIES WHEN THE SYSTEM
IS PRESSURIZED OR DAMAGE MAY OCCUR TO ELECTRONIC
COMPONENTS.
2. When replacing batteries on SCBAs, remove the cylinder and place
the SCBA in a clean, non-hazardous area.
3. Use a Phillips driver to remove the Battery Housing Cover as shown in
FIGURE 6. Carefully remove the cover and set aside.
4. Remove the used batteries by sliding them out of the battery
compartment.
5. Install six (6) fresh new “AA” batteries of the same type. Always
replace all batteries at the same time. The battery holder is marked
with the style and orientation of the batteries required. See FIGURE 7.
Use six (6) each of one of the following 1.5 volt AA batteries:
• Duracell2 Alkaline MN1500
•Duracell Alkaline MX1500
•Duracell Alkaline PC1500
•Duracell Quantum QU1500
• Energizer3Alkaline EN91
•Energizer Alkaline E91
Do not mix batteries. Verify the correct orientation of batteries as shown
on label inside the battery holder.
WARNING
THE 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
THE BATTERY COMPARTMENT, CHANGING
THE BATTERIES, AND CLOSING THE BATTERY
COMPARTMENT MAY RESULT IN DAMAGE
THAT COULD CAUSE FAILURE OF THE PASS
DURING A LIFE-THREATENING EMERGENCY,
A FIRE, OR AN EXPLOSION IN A FLAMMABLE
OR EXPLOSIVE ATMOSPHERE, POSSIBLY
RESULTING IN INJURY OR DEATH.
WARNING
BATTERIES MUST ONLY BE CHANGED IN AN
AREA KNOWN TO BE NONFLAMMABLE.
CHANGING THE BATTERIES IN A FLAMMABLE
ATMOSPHERE MAY CAUSE AN IGNITION
WHICH COULD RESULT IN SERIOUS INJURY
OR DEATH.
BATTERY REPLACEMENT
2Duracell is a registered trademark of The Procter & Gamble Company, Cincinnati, OH
3 Energizer is a registered trademark of Eveready Battery Company, Inc., St Louis, MO.
WARNING
TO REDUCE THE RISK OF EXPLOSION, USE
BATTERIES ONLY FROM THE LIST PROVIDED,
DO NOT MIX OLD BATTERIES WITH UNUSED
BATTERIES, AND DO NOT MIX BATTERIES FROM
DIFFERENT MANUFACTURERS. UNAUTHORIZED
SUBSTITUTION OF COMPONENTS MAY IMPAIR
INTRINSIC SAFETY AND CAUSE AN EXPLOSION,
WHICH COULD LEAD TO SERIOUS INJURY OR
DEATH.
FIGURE 6
USE SCREWDRIVER
TO LOOSEN SCREW
AND REMOVE COVER
WARNING
ALWAYS INSTALL THE BATTERIES IN THE
ORIENTATION SHOWN ON THE LABEL. FAILURE
TO PROPERLY INSTALL THE BATTERIES
WILL RESULT IN EITHER REDUCED OR NO
OPERATION OF THE EQUIPMENT, WHICH
COULD LEAD TO FAILURE OF THE EQUIPMENT
AND SERIOUS INJURY OR DEATH OF THE SCBA
USER.

Page 18 of 24
P/N 595370-01 Rev B 07/19
CHECK YOUR WORK!
BEFORE ASSEMBLING THE BATTERY COVER,
CHECK TO SEE THAT ALL BATTERIES ARE
FRESH, NEW BATTERIES OF ONE OF THE
TYPES LISTED AND THAT THEY HAVE BEEN
INSTALLED PROPERLY.
FIGURE 7
BE SURE SEALING
SURFACES ARE CLEAN
BEFORE REASSEMBLY
6. The battery cover must be installed so that it is water-tight after
replacement. Clean the sealing rib around battery compartment and
the sealing face of the cover, shown in FIGURE 7, by wiping with
a clean damp cloth to remove any dirt or foreign matter that might
prevent a proper seal. Check the cover gasket for tears or cuts. If
damage is found, remove the SCBA from service and tag it for repair
by authorized personnel.
7. To install battery cover, align the three grooves on the cover with the
three tabs on the battery compartment and tighten the cover screw to
13-15 in-lbs torque. The cover must be water-tight to prevent damage
to the equipment.
8. To test the batteries, verify that the distress alarm is in the off condition
(cylinder valve closed with no ashing green LED on the control
console).
• Press and hold the reset button on the console. A green light on
the console indicates sufcient battery power and that the batteries
are properly installed.
• If the unit displays the LOW BATTERY condition or no light at all,
verify that the batteries are properly installed. If the batteries were
properly installed, remove the batteries and replace with a new set
of six (6) batteries.
• If another set of properly installed batteries will still not produce a
green light on the battery test, remove the unit from service and
tag it for repair by authorized personnel.
After replacing the batteries, perform a regular operational inspection
before returning the SCBA to service.
CAUTION
IMPROPER BATTERY COVER INSTALLATION
CAN CAUSE BATTERIES TO OVERHEAT AND
MAY CAUSE DAMAGE TO THE PRODUCT.
ALWAYS MAKE SURE THAT THE ALIGNMENT
GROOVES ON THE BATTERY COVER ARE
ALIGNED WITH THE TABS ON THE BATTERY
COMPARTMENT DURING INSTALLATION OF
THE COVER.

Page 19 of 24 P/N 595370-01 Rev B 07/19
DISTRESS ALARM PERFORMANCE SPECIFICATIONS
Sound Levels:
Pre-Alarm............................ 85 to 105 dBA incrementally at left ear
Full-Alarm............................ 95 to 100 dBA @ 9.9 Ft. (3m)
Frequency Range ............... 1.5 KHz to 4 KHz
Battery Life (fresh batteries)
Alkaline Batteries:
Automatic (green ashing light, no sound)..............Approx. 200 hours
Full Alarm (red ashing light, 95 dBA sound)....... .Approx. 8 hours
Compliance
The distress alarm is a NIOSH-approved accessory for use only on approved
3M Scott SCBAs.
NOTE
DO NOT USE A FIBERGLASS WRAPPED ONE-HOUR CYLINDER ON A
MODEL 4.5 3M SCOTT AIR-PAK SCBA EQUIPPED WITH A DISTRESS
ALARM AS THE WEIGHT WILL EXCEED THE 35-LB APPROVAL LIMIT
FOR SCBAs ESTABLISHED BY NIOSH.

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SAFETY LISTINGS
WARNING
RADIO FREQUENCY INTERFERENCE (RFI) MAY
CAUSE A MALFUNCTION OF THE DISTRESS
ALARM. USERS OF SCBAS EQUIPPED WITH
THE DISTRESS ALARM MUST BE AWARE
OF THE PROPER OPERATION OF THE
DISTRESS ALARM. FAILURE TO RECOGNIZE
A MALFUNCTION OF THE DISTRESS ALARM
AND TAKE PROPER CORRECTIVE ACTION MAY
RESULT IN SERIOUS INJURY OR DEATH.
FCC COMPLIANCE
FCC Compliance Statement (Part 15.19)
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received, including interference that
may cause undesired operation.
FCC Warning (Part 15.21)
Changes or modications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
This portable transmitter with its antenna complies with FCC’s RF exposure limits
for general population / uncontrolled exposure.
INDUSTRY CANADA COMPLIANCE
Industry Canada Statement
The term “IC” before the certication / registration number only signies that the
Industry Canada technical specications were met.
The installer of this radio equipment must ensure that the antenna is located or
pointed such that it does not emit RF eld in excess of Health Canada limits for the
general population. Consult Safety Code 6, obtainable from Health Canada’s web
site: https://www.canada.ca/en/health-canada.html
This device complies with Industry Canada's license-exempt RSSs. Operation is
subject to the following two conditions:
• this device may not cause interference, and
• this device must accept any interference, including interference that may cause
undesired operation of the device.
CLASS B DIGITAL DEVICE
Note: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are de-
signed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency en-
ergy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the inter-
ference by one or more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
CAUTION
DO NOT USE A FIBERGLASS WRAPPED
ONE HOUR CYLINDER ON A MODEL 4.5 3M
SCOTT AIR-PAK SCBA EQUIPPED WITH A
DISTRESS ALARM AS THE WEIGHT WILL
EXCEED THE 35 LBS APPROVAL LIMIT FOR
SCBA’S ESTABLISHED BY NIOSH.
La Déclaration de Canada d'industrie
L' « IC » de terme avant que la certication/le nombre d'enregistrement signie
seulement que le Canada d'Industrie spécications techniques ont été rencontrées.
Le programme d'installation de cet équipement de radio doit garantir que l'antenne
est localisée ou tel est indiqué qu'il n'émet pas le champ de RF dépassant les
limites de Canada de Santé pour la population générale. Consulter le Code de
Sécurité 6, procurable du site Web de Canada de Santé : https://www.canada.ca/
en/health-canada.html
Cet appareil est conforme aux normes Industry Canada exemptes de licence RSS
standard(s). L'opération est assujetti au suivre deux conditions:
• cet appareil ne peut pas causer l'intervention, et
• cet appareil doit accepter de l'intervention, y compris l'intervention qui peut
causer l'opération non désirée de l'appareil.