Spasciani SK 1203 Handbuch Seite 7

2.1.3 Supply hose connection (c)
This is where the tube connected to the hood is inserted; in the tube section inside the hood, the air pressure is further reduced
to breathable values by a bottleneck before entering the hood.
2.1.4 Safety valve (d)
The safety valve comes into operation only in the event of a malfunction; it opens with a pressure between 13 and 15 bar and
closes with a pressure between 9 and 12 bars.
2.1.5 Charge fitting (e)
The charge fitting has a lid that must be unscrewed in order to connect it to the filling system. Charging is ruled by specific
instructions, cod. 960140RIC (cylinder refilling must be carried out only by SPASCIANI S.p.A. or by an Authorized Workshop that
has attended specific courses in order to perform this operation; the instruction is therefore attached only when the product is
sold with an empty cylinder).
2.2 Cylinder (2)
The cylinder that supplies the air to the SK 1203 has a volume of 2 litres and 300 bar working pressure; steel (SK 1203 cod.
4030100000) or composite (SK 1203 C cod. 403010000C) material cylinders are available.
Air capacity is about 560 litres and the average duration exceeds 15 minutes.
The filling air must meet the requirements of EN 12021 for breathable air.
2.3 Breathing hood (3)
The breathing hood is made of PVC coated fabric, with a large visor made in polycarbonate and sealing collar in elastic
polyurethane that fits all sizes and keeps hood in the proper position. Inside the hood, applied to the visor, an inner face mask
with inhalation and exhalation valves separates the dead space from that reserved for breathing, preventing the build up of carbon
dioxide. In the mouthpiece connecting the mask to the hood, there is the air inlet system, linked to the pneumatic valve that
permits direct breathing of external air when the cylinder air runs out.
2.4 Reducer- hood connector hose (4)
The connector hose, very flexible and small in diameter, is equipped with pivoting fittings that permit wide freedom of movement
for the wearer. The threaded fittings allow to easily separate the hood from the reduction unit for any maintenance, recharging
and overhaul that may be necessary after use and for standard maintenance.
2.5 Storing and carrying bag (5)
The bag is made of a robust PVC. The velcro closure has two side grip-straps for quick opening; four guarantee seals allow to check
that the device has not been opened and tampered with. The bag is equipped with robust carrying handles for transport on the
shoulder or back. One side of the bag is transparent thus enabling to see the pressure indicator and therefore the content level of
air in the apparatus.
A padding keeps the device in the correct position inside the bag during the transport and extraction of the hood and protects all
sensitive parts from bumps and falls.
3 INSTRUCTIONS FOR USE
3.1 Checks before use
To prevent the breathing apparatus from being inefficient at the time of use, a periodic visual check is required both on the state
of charge of the cylinder and on the integrity of the product (see point 4).
When controlling the pressure gauge, it is necessary to check that the needle lies in the green zone.
The green range corresponds to 300
very low temperatures could give incorrect indications, with pressure values external to the green interval but without
compromising the good functioning of the product (nominal duration exceeding 15 minutes).
The table below gives an indicative correlation between room temperature and relative pressure in the tank:
-15°C 260 bar
20°C 300 bar
60°C 340 bar
If in situations with particularly severe weather conditions , to check the actual charge of the tank it is advisable to place the
device in an environment with a temperature of about 20 ° C, wait at least 1 hour and then check the pressure gauge indicator,
which should return to the green zone.
3.2 Donning and Operation
For the sequence of actions required to don the device and for more details, look at the pictograms shown on the carrying bag of
the device (see Figure 2):
•
Put the breathing apparatus on by placing the carrying strap over the shoulder
•
Clasp the grip-strap and pull the flap lid open, thus breaking the guarantee seals
•
Grip the hood and pull it roughly towards you. The blocks will automatically unlock when remove the latch secured to the hose.
Once the blocks are removed, the air supply will start.
This operation starts the air supply, which has a nominal duration of 15 minutes.
•
Immediately put on the hood by widening the collar with your hands and fitting it on your head, placing the mask on your face.
Make sure that no clothes or hair are trapped between the neck and the rubber seal to ensure perfect tightness.
•
Breathe normally and immediately leave the hazardous zone.
•
Frequently check the pressure gauge for residual air.
3.3 End of use
Do not remove the apparatus until a safe area is reached; once you are in an environment where you can breathe safely, is possible
to take the hood off. After use the breathing apparatus must be put back in its storing and carrying bag and sent to SPASCIANI SPA
or to an authorized workshop for refilling, checking and sealing.
4 MAINTENANCE AND CHECKING
4.1 Frequency of checks
The efficiency of the breathing apparatus can be checked from the position of the pressure indicator that must always be at
300±15 bar, at a temperature of 20±5°C (at extreme temperatures the gauge could give false readings), indicating that the cylinder
+40
bar measured at an ambient temperature of 20 ° C. It should be noted that very high or
−10
Do not drop SK apparatus to avoid any damage.
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