Honeywell FENZY BIO-S-CAPE Instructions Manual page 4

DESCRIPTION OF THE FENZY BIO-S-CAPE (figure 1)
The FENZY BIO-S-CAPE in an emergency evacuation breathing apparatus, designed to provide respiratory protection during
evacuation, according to standard EN1146.
Its main components are:
•
a respiratory hood with panoramic visibility.
•
a pressure reducing valve actuated automatically to provide breathing air.
•
a high pressure breathing air cylinder.
•
a carrying bag allowing the apparatus to be carried around the neck and protecting it from flying objects and liquids.
Operating principle
The FENZY BIO-S-CAPE is a self-contained, open-circuit emergency evacuation breathing apparatus, operating with a high pressure
compressed air reserve. The apparatus supplies the user with breathing air at continuous flow rate.
The high pressure of compressed air from the cylinder is reduced to medium pressure by the pressure reducing valve, then feeding air at
continuous flow rate into the hood.
This continuous flow rate is set and maintains a slight overpressure in the hood.
Carrying bag (figure 2)
A wide, adjustable neck strap with two attachment points and a fast adjustment point offers greater comfort.
A strap is also available as an option to allow it to be carried on the belt.
The upper part of the bag is secured by 2 self-gripping strips and a security seal. The red handle opens the bag rapidly and completely
and actuates the pressure reducing valve automatically.
The wide window in the bag allows the pressure gauge and pressure reducing valve to be seen at all times.
For use in an explosive atmosphere, contact us.
Pressure reducing valve
The pressure reducing valve is actuated automatically. It provides a stable supply of breathing air into the hood, whatever the pressure in
the cylinder.
Attached directly to the cylinder neck, it has a filling connector (200 or 300 bar), protected by a non-return valve.
The pressure reducing valve operates at 200 or 300 bar.
Alarm whistle
The whistle is fitted to the flexible supply hose and air passing through the whistle does not reduce the supply time of the hood.
The whistle warns the wearer when the FENZY BIO-S-CAPE reaches the end of the supply time for its air reserve.
The whistle remains audible until the cylinder is completely exhausted.
Continuous cylinder pressure indicator (Figure 3)
The HP pressure gauge, built into the pressure reducer, allows the pressure to be read quickly at any time.
For information, at 15° C, the high pressure gauge s hould indicate a filling pressure matching the maximum filling pressure for the
cylinder.
Breathing hood
The hood is used to fully isolate the user, while allowing maximum comfort and visibility.
It can be taken out of the bag quickly. It is easy to adjust and remains flexible due to the self-inflating air cushion.
The elastomeric seal keeps the hood fully sealed at the neck. The inner half mask keeps the lens free of fog and minimises the empty
space in the hood.
The self-inflating cushion at the neck flattens the interior half-mask and adjusts it automatically.
Cylinders
The cylinders used with breathing apparatuses must be made of metal or composite material and contain breathing air in accordance
with EN12021.
The compressed-air cylinders used must comply with European Directive 97/23/EC applicable to
Pressurised Equipment.
The FENZY BIO-S-CAPE HP pressure gauge enables the pressure in stored cylinders to be checked easily at a glance.
If at 15° C, a pressure less than 280 bar is display ed for 300 bar cylinders and a pressure less than 180 bar for 200 bar cylinders, the
cylinder must be refilled with breathing air.
The supply time of the FENZY BIO-S-CAPE, in accordance with standard EN1146, is printed on the label affixed to the carrying bag for
the apparatus; it is 10 min, 15 min or 20 min depending on the cylinders used.
For information, the method for calculating the supply time of a breathing apparatus is below:
The volume of air carried is calculated on the basis of the capacity and filling pressure of the cylinder:
One 2-litre cylinder at 200 bar contains: 2 x 200 = 400 litres of air
The supply time of the apparatus depends on the quantity of air carried as well as the continuous flow rate of the breathing apparatus.
Cylinders Filling pressure
2 litres 200 bar
2 litres 300 bar
3 litres 200 bar
3 litres
300 bar
Supply time table
Volume of air
400 litres
600 litres
600 litres
900 litres
EN-2
Minimum theoretical
duration
10 minutes
15 minutes
15 minutes
20 minutes