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SERVICE LIFE CONTINUED...
The user should not expect to obtain exactly the cylinder rated duration from this
air supply on each use. The effort being expended may be more or less strenu-
ous than that used in the National Institute of Occupational Safety and Health
(NIOSH) respirator testing. Where the effort is more strenuous, the duration may
be shorter, possibly as short as one-half the nominal service time or less. Always
verify that the SCOTT RIT-PAK III portable air supply cylinder is fully charged
before entering the hazardous atmosphere.
The duration of use of the respirator supplied by the SCOTT RIT-PAK III portable
air supply will depend on such factors as:
1.
the capacity of the cylinder installed,
2.
the degree of physical activity of the user;
3.
the physical condition of the user;
4.
the degree to which the user's breathing is affected by excitement, fear or
other emotional factors;
5.
the degree of training or experience which the user has with this or similar
equipment;
6.
whether or not the cylinder is fully charged at the start of the evacuation
effort;
7.
the possible presence in the compressed air of carbon dioxide concentra-
tions greater than .04% normally found in atmospheric air;
8.
the atmospheric pressure; for example, if used in a pressurized tunnel or
caisson at 2 atmospheres absolute (15 psi gauge) the duration will be one-
half as long as when used at 1 atmosphere; and at 3 atmospheres will be
one-third as long;
9.
loose or improperly fitting facepiece;
10. the condition of the respirator being used.
When the SCOTT RIT-PAK III portable air supply is used with the HIGH pressure
air supply hose to recharge a depleted cylinder, do not expect to obtain either
cylinder rated duration after the transfer. The amount of air transferred to the
cylinder being charged is dependent on the size of the cylinder and the amount
of air left in the cylinder being charged and will always be less than either cyl-
inder rating.
USE OF ALTERNATE CYLINDERS
If SCOTT cylinder and valve assemblies of different pressures are used inadvertently or
in emergency situations, the following conditions will be observed:
• A fully charged 2216 psig rated cylinder or 3000 psig rated cylinder in-
stalled in a RIT-PAK III 4500 psi Portable Air Supply will cause the remote
pressure gauge to indicate less than "FULL" and the low cylinder LED
DISPLAY alert will activate well before approximately three quarters of
the air has been consumed.
• A fully charged 3000 psig rated cylinder installed in a RIT-PAK III 2216
psi Portable Air Supply will cause the remote gauge to indicate more than
"FULL" and the end-of-service indicator alarms will not activate until MORE
than approximately three quarters of the air supply has been consumed.
• A 4500 or 5500 psig rated cylinder cannot be installed on a RIT-PAK III 2216
psi Portable Air Supply. The high pressure coupling between the respirator
and the cylinder will not seal when the coupling is threaded to the cylinder
and a large, high volume air leak will occur at the cylinder connection when
the cylinder is opened. This is intended to prevent the lower pressure res-
pirator components from being pressurized to the higher pressure.
• A fully charged 5500 psig rated cylinder installed in a RIT-PAK III 4500
psi Portable Air Supply will cause the remote gauge to indicate more than
"FULL" and the end-of-service indicator alarms will not activate until MORE
than approximately three quarters of the air supply has been consumed.
• A fully charged 2216 psig rated cylinder or 3000 psig rated cylinder or
4500 psig cylinder installed in a RIT-PAK III 5500 psi Portable Air Supply
will cause the remote pressure gauge to indicate less than "FULL" and
the low cylinder LED DISPLAY alert will activate well before approximately
three quarters of the air has been consumed.
THE USE OF ANY AIR CYLINDER WITH A DIFFERENT PRESSURE FROM THE PRES-
SURE INTENDED FOR USE WITH THE SPECIFIC SCOTT RIT-PAK III PORTABLE AIR
SUPPLY MODEL BEING USED WILL RESULT IN CHANGES TO THE BEHAVIOR OF THE
REMOTE GAUGE AND/OR THE END-OF-SERVICE ALARMS. IN THESE SITUATIONS,
A PERSON MUST MONITOR THE AIR PRESSURE GAUGE ON THE CYLINDER TO DE-
TERMINE THE AIR REMAINING IN THE CYLINDER. FAILURE TO PROPERLY MONITOR
THE AIR REMAINING IN THE CYLINDER MAY RESULT IN SUDDEN AND UNEXPECTED
TERMINATION OF THE AIR SUPPLY TO THE USER OF THE RESPIRATOR.
Page 5 of 36
WARNING
THE END-OF-SERVICE ALARM ON THE
USER'S RESPIRATOR MAY NOT OPERATE
NORMALLY WHEN BEING SUPPLIED BY
THE RIT-PAK III PORTABLE AIR SUPPLY.
FAILURE TO ASSIGN A PROPERLY TRAINED
PERSON TO MONITOR THE AIR SUPPLY IN
THE SCOTT RIT-PAK III PORTABLE AIR
SUPPLY AND/OR FAILURE TO MAINTAIN
EFFECTIVE COMMUNICATIONS WITH
THE RESPIRATOR USER MAY RESULT IN
SUDDEN AND UNEXPECTED TERMINATION
OF THE AIR SUPPLY TO THE USER OF THE
RESPIRATOR AND LEAD TO SERIOUS
INJURY OR DEATH.
WARNING
N E V E R E N T E R A H A Z A R D O U S
ATMOSPHERE WITH A CYLINDER THAT
IS NOT FULLY CHARGED. USE OF A
CYLINDER THAT IS LESS THAN FULLY
CHARGED MAY RESULT IN REDUCED
DURATION OF THE AIR SUPPLY TO THE
USER OF THE RESPIRATOR AND LEAD TO
SERIOUS INJURY OR DEATH.
CAUTION
THE USE OF ANY AIR CYLINDER OTHER
THAN A CYLINDER AND VALVE ASSEMBLY
INTENDED FOR USE WITH THE SPECIFIC
SCOTT RIT-PAK III PORTABLE AIR SUPPLY
MODEL BEING SERVICED MAY RESULT
IN LOSS OF AIR FROM THE CYLINDER
OR IMPROPER OPERATION OF THE
EQUIPMENT.
WARNING
THE USE OF ANY AIR CYLINDER WITH
A DIFFERENT PRESSURE FROM THE
PRESSURE INTENDED FOR USE WITH THE
SPECIFIC SCOTT RIT-PAK III PORTABLE
AIR SUPPLY MODEL BEING USED WILL
RESULT IN CHANGES TO THE BEHAVIOR
OF THE REMOTE GAUGE AND/OR THE
END-OF-SERVICE ALARMS. A PERSON
MUST MONITOR THE AIR PRESSURE
GAUGE ON THE CYLINDER TO DETERMINE
THE AIR REMAINING IN THE CYLINDER.
FAILURE TO PROPERLY MONITOR THE
AIR REMAINING IN THE CYLINDER MAY
RESULT IN SUDDEN AND UNEXPECTED
TERMINATION OF THE AIR SUPPLY TO THE
USER OF THE RESPIRATOR AND LEAD TO
SERIOUS INJURY OR DEATH.
P/N 595225-01 Rev C 4/12
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