Patient Alert System; Routine Patient Maintenance - DeVilbiss 525DS Service Manual

alerts:
The visible alert located on the front panel reads "Service Required." The audible alert system is internally powered; no batteries are required. When
the indicator lights illuminate or the audible alert sounds, other than during unit start-up, a problem has occurred.
• P ower Failure (Blinking red "Service Required" light and pulsing audible alert)
• L ow Flow (Below 0.5 lpm) (Continuous red "Service Required" light and audible alert)
• B elow Normal Oxygen (84% to 75%, yellow "Low Oxygen" light. 75% to 60%, yellow "Low Oxygen" light and beeping audible alert. Less than
60%, red "Service Required" light and beeping audible alert.) Refer to Specifications for specific alert settings.
The visible and audible alerts will activate for approximately 15 minutes in a no power situation. If the unit is turned "On" without power or power is
removed later, no alert will sound for the first 10 seconds. After that time, the alert will produce an audible pulse every few seconds while the visible
alert blinks. Power for this alert is provided by a capacitor on the PC board.
noTe–
If the concentrator has been unused for an extended period, the unit must run several minutes before the power fail alert will activate.
The PC (printed circuit) board (Figure 5) is responsible for controlling the system and alerts.
noTe–
 A highpressureconditionisindicatedbytheaudible(a"popping"sound)releaseofpressurefromapressurereliefvalvelocatedonthe
compressor head.

rouTine PaTienT MainTenance

The oxygen patient should perform the following maintenance:
oxygen Humidifier (reusable bottles only)
The patient should clean the humidifier bottle daily. The patient should follow the instructions supplied by the manufacturer. If no cleaning instructions
were supplied, these steps should be followed:
1. Wash the humidifier bottle in a solution of hot water and dishwashing detergent.
2. Soak the humidifier in a solution of one part white vinegar to three parts hot water for 30-45 minutes. This solution acts as a germicidal agent.
3. Rinse thoroughly with hot tap water and refill with distilled, demineralized, or boiled water for use. Do not overfill.
cannula/Mask and Tubing
The patient should clean and replace the cannula or mask and tubing as instructed by the manufacturer.
air Filter and oxygen outlet connector
The air filter and oxygen outlet connector should be cleaned at least once a week by the patient. To clean, these steps should be followed:
1. Remove the air filter located in the door on the back of the unit. Remove the oxygen outlet connector (if used) from oxygen outlet port.
2. Wash in a solution of warm water and dishwashing detergent.
3. Rinse thoroughly with warm tap water and towel dry. The filter should be completely dry before reinstalling.
Warning
Do not attempt to operate the unit without the air filter or while the filter is still damp.
noTe–
 T heairfiltershouldbemonitoredmorecloselyinenvironmentswithabnormalamountsofdustandlint.
cauTion– OperationoftheDeVilbissOxygenConcentratorinextremeenvironmentsorwithouttheairfilterwillprematurelyoccludethe
intakebacteriafilterandcauseadecreaseintheunitperformance.
exterior cabinet
The patient should clean the concentrator exterior cabinet by using a damp cloth or sponge with a mild household cleaner and wiping it dry.
Warning
Do not apply liquids directly to the cabinet or utilize any petroleum-based solvents or cleaning agents.
LT-2023
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