023-001-058 REV C Fresh Air Supply System Instructions Page 1 of 41
FRESH AIR SUPPLY EQUIPMENT - ORIGINAL INSTRUCTIONS
Unpowered Fresh Air Hose System
or
Powered Fresh Air Hose System (Powered by Mini-Turbine)
Selection of Systems
The Full Face Mask Fresh Air System can be used either as Unpowered (Negative Pressure), where the air is drawn
through the system by the lungs of the user, or as a Powered system where air is supplied by connecting a
Martindale Mini turbine to the end of the air supply hose.
The choice of which system to use is left to the user. Normally if the system is likely to be used for any significant
period of time (i.e. over an hour) then the powered option is preferable in terms of comfort to the user.
The unpowered system should be used if there is no power available for the turbine or if the atmosphere where the
turbine is to be sited does not permit the use of electrical equipment (for example a potentially explosive
atmosphere).
Both systems conform to the higher specification of EN 138, namely Fresh Air BA EN 138 Class2.
The Safe Operation of Mini Turbine Unit
This appliance can be used by children aged from 8 years and above
and persons with reduced physical, sensory or mental capabilities
or lack of experience and knowledge if they have been given
supervision or instruction concerning use of the appliance in a safe
way and understanding the hazards involved. Children shall not
play with the appliance. Cleaning and user maintenance shall not
be made by children without supervision.
The powered system (M26/500, M26/500/EURO) may also be used
in a potentially flammable atmosphere provided the mini turbine
unit itself is not sited within or close to this flammable atmosphere.
The Mini-Turbine is NOT intrinsically safe and should not be sited in
an area which has a flammable atmosphere or may become
flammable. The Mini-Turbine should not be left unattended during
use.
Electrical Safety
Visually inspect the cable along its length for damage ie torn
Insulation, exposed conductors and Security and condition of the
plug fitted to the cable. If the supply cord is damaged, it must be
replaced by the manufacturer, its service agent, or similarly
qualified persons in order to avoid a hazard.
Do not use the unit if any of the above conditions are found
Periodic electrical safety checks must be carried out by a
competent person. Should the turbine unit fail to operate check
the supply, the fuse in the plug (230volt UK version only) and the
fuse in the unit (Replacement fuse T 2.5amp 250V Anti-surge type
RS 537-1486).
WARNING
–
failure to use the correct type of replacement fuse
may cause permanent damage to the Unit.
