Firesafe 829-0303 Petunjuk Penggunaan Manual - Halaman 7

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3.2.1.

Firesafe™ Nozzle

Every Firesafe™ Flowmeter is fitted with a Firesafe™ Nozzle, minimising the known risks of fire

associated with oxygen therapy. The Firesafe™ Nozzle is discernible from a standard tubing

connector as it features a bright orange band. The Firesafe™ Nozzle can limit the impact of an

oxygen fire by automatically arresting the oxygen flow. Acting like a fuse, it automatically isolates

the oxygen supply as a fire tracks back along the tubing towards the oxygen source. Activation of

the Firesafe™ Nozzle during a fire requires is highly reliable at oxygen flows above 1 l/min. The

Firesafe™ Nozzle is not suitable for use as a fire risk control measure outside this range.

3.2.2.

Flowsafe™ Valve

The Flowsafe™ Valve is another feature unique to the Firesafe™ Flowmeter that further lowers

the risk of fire associated with oxygen use. In the event of the flow tube being inadvertently

sheared from the flowmeter body, it automatically isolates the oxygen flow, preventing a free flow

of oxygen into the hospital ward. The pipeline pressure is therefore maintained, negating the

need to isolate the ward oxygen supply, upon which other patients may be dependent.

3.2.3.

Precision Rotating Float

Unlike conventional ball and glass style flowmeters, the Firesafe™ Flowmeter incorporates a

precision float with a fluted rim, which continuously rotates in the gas stream to provide visual

confirmation that gas is flowing and the device is providing an accurate reading. Historically,

incidents have occurred with conventional designs whereby static charge within the flow tube has

caused the ball to stick to the surface and provide a false reading.

Unlike conventional ball style flowmeters, where there is often doubt as to where a reading should

be taken, the Precision Rotating Float has a red band indicating the position at which the flow

reading should be taken.

3.2.4.

Static Control (Triboelectric Charge Dissipation)

The Firesafe™ Flowmeter incorporates two separate static control measures in order to rapidly

dissipate any charge generated during use. These unique measures control the recognised

phenomena of static charge, which is known to cause the ball in conventional flowmeters to stick

to the flow tube inner surface, leading to either an inaccurate reading or indicating a flow exists

when the valve is closed.

3.2.5.

Flush Flow Mode

The flowmeter has a Flush Flow Mode. This mode may be used to deliver approximately

25-30 l/min to supply a resuscitation bag.

3.2.6.

Inlet Filter

The flowmeter is fitted with a 25 μm filter to ensure that large particles of debris that might be

resident in the gas supply do not contaminate the flowmeter or pass through to the patient.

3.2.7.

Gas Specific Connector

The gas specific quick connection probe has characteristics to prevent connections between

different gas services.