VS Serena - ResMed

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User's ManualVS Serena8. The Alarms8.1 DefinitionsWhen an alarm is activated, a message flashes on the screen and a buzzer rings out.8.1.1 The automatic alarmsContinuous Buzzer Alarm : No supply connected. The device stops.Mains ! : No more mains supply with at least an other supply connected.Check the mains supply connection.Disconnection : High flow and pressure almost zero. Check the patient circuit.Note : In S mode, this alarm is inactive if the automatic starting is selected (Yes).8.1.2 The technical alarmsGlobal technical alarmStopped turbineLow tension of the back-up battery.Connect onto the mains. Check date and hour.‣ Procedure of alarms checkingMains ! : No more mains supply. Disconnect the mains cord with an other external alimentation connectedDisconnection : disconnect the patient circuit.8.2 Alarms PrioritiesThe alarms priorities are represented by the flashing red led on thebutton and by a buzzer.8.2.1 High PriorityThis priority is represented by :a quick flashing ledand a buzzer ringing out every 8 seconds (••• ••)or a continuous buzzer ringing out in case of defect stop of the device8.2.2 Medium PriorityThis priority is represented by :- a moderate flashing led- a buzzer ringing every 20 seconds (• • •)8.2.3 Low PriorityThis priority is represented by :- a continuous led- a discontinuous buzzer every 5 seconds (• •)For any further persistent alarm, or in case of any doubt, please contact your technician.NEAT0202079-K 24/31
User's ManualVS Serena9. Maintenance and disinfection9.1 Fuses replacementTime lagged fuse, cutting high power :- T 630mA H 250V for a use on to the 230 VAC mains- T 1.25A H 250V for a use on to the 100 VAC mains9.2 Dust Filter replacementBefore every use on a new patient, check the dust filter which is on the rear face.Note : we recommend to replace this filter for each use on a new patient.9.3 Replacement of the internal filterThe air filter placed into the turbine compartment has to be replaced by a qualified technician.Note : we recommend to replace the internal filter yearly.9.4 Check the calibrationCheck the calibration of the pressure measurement between each patient or/and yearly (cf. the procedure in theservice manual NTA0208095).9.5 Cleaning / Sterilising9.5.1 FrequencyThe disposable ventilator elements should be cleaned or replaced in accordance with either the manufacturer'sinstructions or the medical policy in operation on the place of use. For any new patient, the process is as indicated :Element Interval New patientFrequency given by Frequency givenconstructor by medical staffPatient circuits Yes Yes YesHeating chamber Yes Yes YesBacteria filter Yes Yes Yes9.5.2 Patient CircuitReusable patient circuit elements should be disinfected and cleaned as per the manufacturer's recommendations.The reusable patient circuit should be regularly cleaned with soapy water, rinsed with clear water and dried before re-use.This basic maintenance procedure is recommended for home ventilation on one single patient.Cold disinfecting by immersion is also possible. Use the BACTINYL ® 5M solution or equivalent.9.5.3 Bacteria filterBacteria filters situated in the inspiratory circuit and used for bacterial and viral filtering should be replaced inaccordance with manufacturer's instructions and for each new patient.NEAT0202079-K 25/31
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