Intended Use; Limitations On Use - Dräger PSS BG 4 RP Instructions For Use Manual

Export all parameters from the Bodyguard

2.3

Intended use

The closed-circuit breathing apparatus supplies its wearer with
breathing air for approx. 4hours, thus making it unnecessary
for the wearer to breathe polluted ambient air lacking in
oxygen.
2.4

Limitations on use

The closed-circuit breathing apparatus is not intended for use
under water.
NOTICE
i i
Short-term full submersion of the apparatus under
water (e.g. when crossing a water hole in a mine) does
not result in the correct functioning of the closed-circuit
breathing apparatus being impaired.
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 test-

ed.
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 (e.g. poorly maintained or poor-

ly adjusted devices may leak and 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 180 bar.)
Measures with usage temperatures below 0 °C
If the closed-circuit breathing apparatus is used at
temperatures between -15 °C and -40 °C, the usage period
is limited to 72 minutes.
When the closed-circuit breathing apparatus is used at
temperatures below 0 °C, the following measures must be
carried out:
Operating temperatures
0 °C ... -6 °C
-6 °C ... -15 °C
-15 °C ... -40 °C
Measure :

The full face mask visor can fog up from the inside and
freeze, restricting vision. To prevent freezing, treat the visor
with the antifog solution given in the instructions for use for
the full face mask. Do not use any other agent.
Measure :

Store the closed-circuit breathing apparatus at tempera-
tures of +10 °C to +25 °C to ensure that all parts are func-
tioning correctly.
Measure :

Insulate the CO absorber, inhalation and exhalation
2
breathing hoses and connecting piece with the cold protec-
tion insulation. Observe the relevant assembly instructions.
Description en
Measure
  
x
x x
x x x
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