Firesafe 829-0901 Instructions For Use Manual - Page 8

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Operating Instructions

4.1.

Before use, visually check both the flowmeter and hose (if fitted) for any damage or

contamination. Do not connect or use the device if there are any doubts about its condition.

The flowmeter is supplied with a gas specific connector that is designed to connect to a mating

gas specific outlet. Gas specific outlets might be a terminal unit in a medical gas pipeline system

or part of a pressure regulator outlet on a gas cylinder.

If you are using a cylinder supply, ensure that the cylinder contents are adequate for planned

therapy and turn on the supply at the cylinder.

Connect the gas specific quick connect to the appropriate gas specific outlet.

For indirect connection flowmeters the Medirail bracket should be fastened to a suitable medical

rail system (compliant with BS EN ISO 19054 Rail systems for supporting medical equipment)

using the thumb screw in the Medirail bracket.

Warning! Where the gas specific connector is dependent on a threaded fastener (e.g. DISS CGA

– V5 1240, AS 2896/SIS handwheel) offer device to outlet and connect a few turns. Align device

to the final vertical position and fully hand tighten the connection before turning on the supply

pressure. Do not use the device to tighten or lock the connection.

For quick connector probes (e.g. BS 5682, DIN, AFNOR), ensure that the connection is correctly

made by gently pulling the flowmeter body or hose (as applicable) before turning on the supply

pressure.

Connect a sufficient length of patient tubing (not supplied) to the outlet barb.

Note: Removal of the Firesafe™ Nozzle when fitting a humidifier will temporarily disable the

oxygen arresting capability of the flowmeter in the event of a cannula fire. Always remember to

refit the Firesafe™ Nozzle (indicated by a distinctive orange band) when the humidifier is no

longer needed.

4.2.

Turn the flow control valve anti-clockwise to turn on and increase the flow of gas.

If the flowmeter does not operate correctly, remove it from use and refer to the trouble shooting

guide in Section 8 of this booklet.

4.3.

The diagram opposite shows the correct reading

level in relation to the float position for both float

type and ball type variable area flowmeters.

The right hand illustration indicates the correct

reading level for this Firesafe™ Flowmeter i.e. at

the top of the float.

4.4.

Connect the other end of the oxygen tubing to the patient or patient enclosure using the

appropriate connector (not supplied).

Float

Reading Level

Ball