GCE MediVital E Bedienungsanleitung Seite 5

Marking detail
Total weight
allowance of the
Inlet connection
package
type
Filling port type
End of lifetime
Inlet pressure
Reference
EN
number Compliance with
93/42 EEC
Serial number
Compliance with
2010/35 EU
A – INLET STEM
The combination valve is fitted to a gas cylinder by a threaded inlet stem. The inlet stem can
be taper threaded or parallel threaded with different sizes depending on the cylinder size and
material.
B – FILLING PORT
A filling port is provided for filling the gas cylinder at a filling station, it has no function for
patient use. It includes a non-return valve (NRV). The NRV means that special filling adaptors
are required to vent gas from the cylinder during the filling process (venting and/or vacuuming
cylinders).
C – ELECTRONIC INDICATOR E-GAUGE
The E-GAUGE is intended for indicating the amount of gas inside the gas cylinder and the
remaining time of gas supply at the current flow. The indicator is active, i.e. the amount of gas
in cylinder is indicated regardless to shut-off valve position. More information can be found in
Chapter 5.1 - ELECTRONIC INDICATOR E-GAUGE.
D – SHUT-OFF VALVE
The combination valve is provided with a shut-off valve to isolate the gas in the cylinder from
the rest of combination valve functions. It must be opened when filling the cylinder and patient
therapy. Part of the hand wheel is an indicator showing the open/close status of the shut-off
valve.
The shut-off valve´s open/close status indicator is for guidance only. The shut-off valve may
not be fully off when OFF status is showing. Fully closed status has to be checked by ensuring
the shut-off valve is turned fully clockwise until a firm resistance to the rotation is reached and
gas supply to the outlets has stopped.
The shut-off valve must not be used in the "partly ON" status because even though gas is
supplied to the outlets, the flow can be limited due to an insufficiently opened shut-off valve.
E – RESIDUAL PRESSURE VALVE
The combination valve is equipped with a residual pressure valve with a function to retain a
minimum positive pressure in the gas cylinder to avoid contamination of the cylinder content
by atmospheric air. During cylinder gas ventilation through the filling port the residual pressure
valve is bypassed.
F, G – FLOW CONTROL HEAD "F" AND FLOW OUTLET "G" (OPTION)
The combination valve can be delivered with a flow control head "F".This function is used to
supply adjustable gas flow rates (l/min) at atmospheric pressure directly to a patient through the
flow outlet "G", for instance through a cannula or a facemask. The flow outlet "G" is equipped
with a hose fitting (hose nipple) or a threaded type (for accessories to be connected using a
threaded connection).
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