ZOLL AEV Operator's Manual
Also see for AEV: Operator's guideService manual
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Contents
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O PERATING E NVIRONMENTS6-2 www.zoll.com 906-0731-01-05 Rev. CThe primary effect of entrained particles is on the operation of the flow pneumotach used tocontrol the gas delivered to the patient. Dirt on the pneumotach screens affects the unit’scalibration. Cleaning the screens requires a biomedical technician to disassemble the deviceand ultrasonically clean the screens. Using a filter in dusty environments prevents having toremove the unit from service for cleaning. In addition to using the filter, you can also keep theunit in the soft case, which will protect the unit case and the LCD from being scratched ordamaged. It is also easier to clean the padded case following use in a dusty/dirty environmentthan the device.Extreme Temperature EnvironmentsTraditional transport ventilators typically operate from 0 to 40C (32 to 104F). The ZOLLVentilator can operate over the range of -25 to 49C (-13 to 120F) during emergencysituations.Operating at High TemperaturesWhen operating the ventilator at high temperatures, you may observe alarm conditionsassociated with Li-ION battery performance:Charging -- If operating using external power, the unit may issue an alarm when the batteryreaches its high charge temperature limit of 45 C.Discharging -- If operating using external power, the unit may issue an alarm when the batteryreaches its high discharge temperature limit of 49 C.Compliance is a physical characteristic of the ventilator that varies with temperature. Thecircuit becomes more compliant as the temperature rises. The ZOLL ventilator allows you toincrease the compliance value when operating in hot environments.When operating at high temperatures, you should remove the unit from its padded case, whichallows the unit to pass heat into the surrounding environment.Operating at Low TemperaturesWhen operating the ventilator at low temperatures, you may observe alarm conditionsassociated with Li-ION battery performance:Charging -- If operating using external power, the unit may issue an alarm when the batteryreaches its low charge temperature limit of 0 C.Discharging -- If operating using external power, the unit may issue an alarm when the batteryreaches its low discharge temperature limit of -25 C.Compliance is a physical characteristic of the ventilator that varies with temperature. Thecircuit becomes less compliant as the temperature drops. The ZOLL ventilator allows you todecrease the compliance value when operating in cold environments.Valve operating performance can be affected by extremely low temperatures. Consequently, atlow temperatures, you should monitor the patient to ensure that the patient is receivingadequate tidal volume and monitor the patient’s SpO 2 readings.When operating at low temperatures, you can improve performance by operating the unit in thepadded case, which insulates the unit and allows it to retain heat generated by the compressor,circuit boards, and AC/DC Power Supply. |
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