SCOTT FLITE User Manual

FLITE
1
1. INTRODUCTION
1.1 ABBREVIATIONS USED
IN THIS MANUAL
BA Breathing Apparatus
DV Demand Valve
kg Kilograms
HP High-pressure
mg Milligrams
ml Millilitres
m Metres
NRV Non Return Valve
ppm Parts per million
psi Pounds per Square Inch
1.2 LIMITATIONS OF USE
FLITE must only be used with Scott
Safety breathing apparatus facemasks.
FLITE must only be used by competent
personnel trained by Scott Safety or their
approved agents.
FLITE must not be used with spectacle
side arms, beards (or other facial hair), or
clothing that may prevent the facemask
forming a good seal with the face.
1.3 BREATHABLE AIR
Air for compressed air BA may be natural
or synthetic. The composition of
breathable air is given in EN 12021 :
1999 or AS/NZS1715 : 1994. The data
given or required in EN 12021 are valid
for normal atmospheric pressure (one bar
absolute, 20
o
C). All percentage
requirements are given in % by volume.
The composition of natural air is shown in
Table 1.
Element
Mass %
(Dry Air)
Volume %
(Dry Air)
Oxygen
23.14
20.948
Nitrogen
75.52
78.08
Argon
1.29
0.93
Carbon Dioxide
0.05
0.031 4
Hydrogen
0.000 003
0.000 05
Neon
0.001 270
0.001 818
Helium
0.000 037
0.000 524
Krypton
0.000 330
0.000 114
Xenon
0.000 039
0.000 009
Table 1: Breathable Air - EN 12021
(NOT applicable for Australia or New
Zealand)
The oxygen content must be in the range
of 21% (1%) by volume (dry air). There
is an increased fire risk when oxygen or
oxygen-enriched air is used to supply
breathing apparatus.
The purity/quality of air used to supply
and charge breathing apparatus should
be tested periodically in accordance with
national regulations. Compressed air for
breathing apparatus shall not contain any
contaminants at concentrations that can
cause toxic or harmful effects.
Contaminant levels must be kept as low
as possible and must be far below the
national exposure limit. Combination
effects of more than one contaminant
must be taken into account.
Note:
The limit of concentration for any
contaminant should be derived from
national exposure levels, taking into
account, as far as is reasonably practical;
the effects of pressure and exposure
time.
In the absence of more stringent national
regulations the following values shall
apply:
 Lubricant content (droplets or mist)
shall not exceed 0.5 mg/m
3
. Where
synthetic lubricants are present
limits for toxic or harmful
contaminants apply (as defined
above).
 Air shall be without significant
odour or taste.
 Carbon monoxide content must not
exceed 15 ml/m
3
(15 ppm).
 Carbon dioxide content must not
exceed 500 ml/m
3
(500 ppm).
 There must be no free liquid water.
 Where the apparatus is used and
stored at a known temperature, the
pressure dew-point shall be at least
5C below the likely lowest
temperature.
 Where conditions of usage and
storage of the compressed air
supply are not known the pressure
dew-point shall not exceed -11C.
The maximum water content of air at
atmospheric pressure shall not exceed:

SCOTT FLITE Specifications

General

Brand	SCOTT
Model	FLITE
Category	Diving Instrument
Language	English