10
Disposal
The oxygen self-rescuer is to be discarded after use.
Deactivating used oxygen self-rescuer
—
Prevent combustible substances (petrol, grease, solvents etc.) from
entering the oxygen self-rescuer to prevent danger of fire!
—
Use protective goggles and gloves.
—
Remove starter from the case and discard it according to local
regulations.
—
Remove KO
2
cartridge from the case.
—
Immerse dismantled KO
2
cartridge completely in water, until gas
bubbles no longer emerge. Neutralize the resulting solution with a 3 %
acid e.g. HCl in a 1:1 ratio.
—
All plastic components are identified and can be collected according to
their material characteristics for recycling.
We dispose for you!
(price on request)
Please send damaged, opened
1)
, used and expired oxygen self-rescuers in
an approved packaging to the following address:
Dräger Intek GmbH
Bochstrasse 1
D-23569 Luebeck
Germany
Phone ++49 451 882 1813
Fax ++49 451 882 3549
e-mail: [email protected]
Despatch Rules
Hazard regulations apply when this breathing protective device is in transit.
Breathing protective devices are classified as:
UN 3356 "Oxygen generator, chemical" Class 5.1, packing group II
Starters of damaged and/or opened and partly used breathing protective
devices must be activated before transit. After cooling down, the breathing
protective device has to be sealed in a plastic bag. The breathing protective
device has to be dispatched in an approved packaging (e.g. Dräger
Transport packaging 63 04 511).
The shipment is classified as:
UN 3085, Oxidizing solid, corrosive, n.o.s. (Potassium Superoxide,
Potassium Hydroxide), Class 5.1, packing group I
Please note special regulations for shipping by airfreight.
Maintenance
The user may carry out the following repair procedures himself:
Replacing the indicator window (67 33 647)
●
Carefully remove the defective indicator window using a screw driver.
●
Insert the new indicator window into the indicator housing exerting
slight pressure.
Replacing the pictograph (67 33 682/ 67 33 910)
●
Remove the defective pictograph, e.g. with a razor blade.
●
Clean the surface using a degreasing agent.
●
Affix new pictograph.
Inspection and Service
—
Daily inspection (see “Daily Inspection” on page 8).
1)
Before you send the oxygen self-rescuer, please activate the starter!
Afterwards please seal the oxygen self-rescuer in a PE bag.
Oxygen Generation
The oxygen required for breathing is supplied by a solid chemical
substance, potassium dioxide (KO
2
), which reacts with the carbon dioxide
(CO
2
) and water vapour (H
2
O) in exhaled air. These two components of the
exhaled air are absorbed by the KO
2
to release the chemically-bound
oxygen (O
2
) in KO
2
. The simplified reaction formulas are as follows:
KO
2
is both O
2
source and CO
2
absorber at the same time. Alternating
between inhalation and exhalation, the breathing air flows from the
breathing bag through the KO
2
cartridge to the heat exchanger and then
back again. A relief valve controls the volume in the breathing bag.
Technical Data
2 KO
2
+ H
2
O
→
2 KOH +
3
/
2
O
2
+ heat
2 KOH + CO
2
→
K
2
CO
3
+ H
2
O + heat
2 KO
2
+ CO
2
→
K
2
CO
3
+
3
/
2
O
2
+ heat
approved according to DIN EN 13 794
Temperature class in acc. with CEN 50014
max. surface temperature
300
o
C
Storage temperature
0
o
C...+50
o
C
Lowest temperature for use
-5
o
C
Nominal service life
25 minutes
Service life
at 10 L/min minute volume
at 30 L/min minute volume
at 35 L/min minute volume
at100 L/min minute volume
120 minutes
30 minutes
25 minutes
8 minutes
Volume of breathing bag
>6 litres
Inhalation/exhalation resistance
at 35 L/min sinusoidal flow
at the beginning of the operating period
at 35 L/min sinusoidal flow
during use
4 mbar
max. 10 mbar
CO
2
content
in inhaled air
in inhaled air during use
less than 1% by vol.
max. 2.5 % by vol.
Temperature of inhaled air
at the end of the operating period
max. 70
o
C
(dry air)
Weight
unopened
during use
approx. 2.1 kg
approx. 1.2 kg
Dimensions (W x H x D)
205 x 189 x 89 mm
Service Life
carried daily
1)
stored in depot
1) Single shift operation max. 8 h a day, 5 working days a week; during multi shift ope-
ration the intervals reduced accordingly.
5 years
10 years
