Dräger PSS BG 4 plus User Manual

8 Dräger PSS BG 4 plus
Description
2.4.3 Special or critical user’s instructions
 Approved for use at temperatures above 23 °F (–5 °C).
 Ice in the cooling system may only be used at ambient
temperatures above 32 °F (0 °C).
At temperatures below 32 °F (0 °C), ice must never be
used.
 The cylinder is to be charged with compressed oxygen
meeting U.S.P. specifications.
 Anti-fog solution must be applied to the full facepiece
before each use.
 The CO
2
absorber must never be used after its indicated
expiration date. See instructions for use of refillable
cartridge 90 21 360.
 Never re-use disposable CO
2
absorber cartridges.
 After each use of the closed-circuit breathing apparatus, a
fully charged cylinder and a recharged/new CO
2
absorber
must be installed.
 All parts which get into contact with the exhaled air must be
thoroughly cleaned and disinfected after use.
 Do not use this apparatus where there is direct exposure of
open flames or in high radiant heat.
 Keep exposed hair to a minimum when using the
apparatus near open flames or in high radiant heat.
 A good facepiece seal is crucial since facepiece leakage
will seriously reduce service time.
 Use of pure oxygen or oxygen enriched air increases
flammability and lowers the ignition temperature of most
materials.
2.4.4 Restrictions to the usage period
The estimated usage period amounts to approximately 4 hours
if the following requirements are met:
 The user is an average-sized man in good physical health.
 The working conditions are moderate.
 The compressed oxygen cylinder is completely full.
 The apparatus has been adequately maintained and
tested.
The usage period can be reduced considerably depending on
the following factors:
 the physical condition of the user (the worse physical
shape the user is in, the more oyxgen he will consume)
 the degree of exertion (the harder the user works, the more
oyxgen he will consume)
 the emotional condition of the user (the more anxious or
excited the user is, the more oyxgen he will consume)
 the condition of the device (Poorly maintained or poorly
adjusted devices may leak. They should therefore always
be maintained according to the respective instructions for
use.)
 the cylinder pressure before use (If the cylinder is not filled
to capacity, usage time is reduced proportionately.
The cylinder pressure should amount to at least 2600 psi /
180 bar.)
2.5 Approvals
The closed-circuit breathing apparatus is approved in
accordance with DIN EN 145 with the following facepieces:
 Dräger FPS 7000 RP Series
 Panorama Nova RP Series
It conforms to the following regulations:
 PPE Directive 89/686/EEC
 vfdb Regulations 0802:2006
The closed-circuit breathing apparatus is also approved by
NIOSH according to the NIOSH guidelines 42 CFR, part 84,
subpart H. Only combinations that are approved by NIOSH
may be used (see approval label on page 34). Otherwise the
correct functioning of the device may be compromised.
The Sentinel meets the explosion protection requirements of
the following standards:
It was tested in methane-air mixtures by the Mine Safety and
Health Administration (MSHA) and is registered with approval
number 18-A080008-0 for the use in gaseous mines.
WARNING
For many users, actual air supply times will be far less
than 4 hours! For example, users who are out of sha-
pe, stressed, larger than average, working in difficult
conditions, inexperienced, or who have not maintained
the device properly will drastically lessen their actual
air-supply times.
UL913 Class I Division 1, Group A, B, C, D
Class II Group E, F, G
Ex ia T4
(T
a
:-22 °F to +140 °F
T
a
: -30 °C to +60 °C)
CAN/CSA-C22.2,
No. 157
Class I Division 1, Group A, B, C, D
Class II Group E, F, G
Ex ia T4
(T
a
:-22 °F to +140 °F
T
a
: -30 °C to +60 °C)
!
Page 8
Draeger Training 11/16 rev 1

Dräger PSS BG 4 plus Specifications

General

Brand	Dräger
Model	PSS BG 4 plus
Category	Diving Instrument
Language	English