EN-4
Rapid checks before use
Pressure in the compressed air cylinder
Fully open the cylinder valve(s). The pressure gauge must show a pressure of:
•
180 bar minimum with a 200-bar cylinder.
•
270 bar minimum with a 300-bar cylinder.
If used with lower air pressures, supply time of the apparatus is reduced.
Circuit leak test
•
Disconnect the demand valve from the Air Klic connector of the respiratory mask.
•
When using the SX-PRO demand valve, ensure that the first inhalation mechanism is in the closed position.
•
Close the compressed air cylinder valve(s) and monitor the pressure gauge. The pressure must not fall more than 20 bar in one
minute.
Alarm device test
•
Open the cylinder valve(s) to put the apparatus under pressure.
•
Close the cylinder valve(s) again.
•
Slowly vent the circuit by pressing the demand valve bypass button.
•
Watch the pressure gauge; the whistle should sound at 55 bar.
Putting on the apparatus
•
Loosen the backplate straps as much as possible.
•
Put the apparatus on your back and pull the ends of the straps until you feel the apparatus hangs comfortably on the shoulders.
•
Tighten the backplate belt then the chest strap linking the two straps (if this option is fitted).
•
Put the breathing mask in place (see instructions for using the breathing mask). (Figure 8a)
•
Check that the breathing mask is sealed (see instructions for using the breathing mask). (Figure 8b)
•
Fully open the cylinder valve(s) (Figure 8c)
•
Check the pressure in the cylinder(s) again by reading the pressure gauge. (Figure 8d)
•
Snap the demand valve onto the Air Klic connector of the respiratory mask (see section on demand valve) (Figure 8e)
•
The breathing apparatus is ready for use.
It is strongly recommended that another person is asked to check the demand valve connection
by ensuring, and this is vital, that the locking devices (Air Klic) is correctly engaged in the
groove on the mask connector.
Use
While working in the apparatus, look at the pressure gauge regularly. The whistle will sound when the breathing air reserve reaches the
residual pressure of 55 bar. The whistle will sound till all the breathing air is used up.
Leave the place of work when the alarm starts to sound, at the latest. Assuming that breathable
air consumption by the user is about 40 L/min, he has no more than about 10 minutes to return
to a safe area. This estimate is given for information only; the capacity of the cylinders, place
and type of work must be taken into account.
In a difficult or emergency situation (e.g. wounds or breathing difficulties), if the user needs
additional breathable air, just press the bypass button on the demand valve cover to increase the
flow rate of breathable air arriving in the mask.
After use
•
Snap the demand valve off by pressing on both Air Klic buttons at the same time, tipping the head slightly backwards (see section
on demand valve).
•
If using the SX-PRO demand valve, set the first inhalation mechanism to the closed position by pressing sideways on the first
breath button (refer to the section on demand valve).
•
Fix the demand valve on its bracket.
•
Remove the respiratory mask (see instructions for using the mask).
•
Shut the cylinder valve.
•
Vent the circuit by pressing the demand valve bypass button.
•
Detach the chest strap (if this option is fitted).
•
Detach the backplate belt.
•
Loosen the straps by pulling the end of each strap upwards.
•
Remove the compressed air breathing apparatus.
Never throw a compressed-air respiratory device to the ground.
ROUTINE MAINTENANCE
Filling the cylinders
The cylinders must be refilled with air in accordance with current regulations.
You may only fill cylinders that:
•
Comply with the legislation and also have a compliant cylinder valve. The test date and stamp of the approved organisation must
be marked in the cylinder body, and must not have expired.
•
Do not have any defect liable to give rise to an incident risk (e.g. defective cylinder valve).
•
Do not show any visible signs of humidity (water drops) at the threaded connection.
