NuAire AllerGard NU-620R
NuAire · Model AllerGard NU-620R
DIRTY CAGE COLLECTION After the lab rat cage change process, a collection bin can be placed on the foldable shelf to collect dirty cages. The open bag from the sterile rat cages can be placed in the collection bin. As each animal is placed in a clean cage, the dirty cage can be stacked in the collection bin. After a stack of Innocage® IVC Rat Cages has been used; the technician can close the dirty bag and remove it from the collection bin for disposal. DEEP WELL FOR INNOCAGE® ICV RAT CAGES The work surface of the Animal Transfer Station Innovive® Rat Edition features a deep well in the clean segment of the work zone. The deep well allows a technician to place a sterile stack of Innocage® IVC Rat Caging and open the bag under HEPA-filtered air to begin the cage-changing process. IN WORKZONE FEED HOLDERS A package of Innocage® rat sterile feeders can be opened and stored in a holder under HEPA-filtered air, maximizing sterility. In addition, the in work zone holders allow a lab animal technician to access a feeder quickly, improving the cage-changing procedure. NU-620R WORK SURFACE The work surface features a pattern of air slots along the perimeter and across the interior of the work surface to segment the clean and dirty cage areas. At the same time, a left-side deep well allows for an easy-to-reach and space-saving area to place the stack of Innocage® IVC Rat Cages.
Key tips
- ·Free-flow protection must be verified on every PM - a failed anti-free-flow clamp is a direct overdose risk.
- ·Test occlusion alarms in both directions - failing to alarm when it should is more dangerous than a false alarm.
- ·Battery run-time complaints are the most common real-world nuisance call - a full charge/discharge cycle test catches most of them.
Typical Failure Modes
Failure patterns typical of this equipment class - general BMET reference, not verified against this exact unit's own service history unless flagged. Severity is a category-level estimate.
Occlusion / downstream blockage
HighSymptoms: Occlusion alarm, no flow, upstream pressure high.
Root cause: Kinked set, clamped line, patient vein issue.
Air-in-line detection
MediumSymptoms: Air-in-line alarm, infusion paused.
Root cause: Air in set, improperly primed tubing.
Free-flow (failure of anti-free-flow)
HighSymptoms: Uncontrolled flow when door open.
Root cause: Worn roller or failed free-flow valve.
Motor / drive failure
MediumSymptoms: Stalled infusion, inaccurate rate.
Root cause: Peristaltic motor or encoder wear.
Serviceable Parts & Consumables
The parts a BMET typically services on this class of equipment. Service class and relative cost are general engineering estimates for the category, not figures from this unit's documentation. Part numbers appear only when pulled from this unit's own service manual. Always confirm intervals and pricing against the manufacturer.
Air detector / ultrasonic sensor
Class Periodic replacementRel. cost $$R&R Moderate
Door microswitch
Class Periodic replacementRel. cost $R&R Fairly easy
Occlusion sensor assembly
Class Periodic replacementRel. cost $$R&R Moderate
IV administration set
Consumable; per patient.
Class ConsumableRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Air detector / ultrasonic sensor | Periodic replacement | $$ | Moderate |
| Door microswitch | Periodic replacement | $ | Fairly easy |
| Occlusion sensor assembly | Periodic replacement | $$ | Moderate |
| IV administration set Consumable; per patient. | Consumable | $ | Easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Occlusion pressure and flow-rate accuracy verification
- ·Battery conditioning cycle
- ·Door latch and air-in-line sensor inspection
- ·Post-drop functional check before return to service
- ·Annual PM per manufacturer schedule
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Occlusion / downstream blockage
- Confirm the presentation - typically occlusion alarm, no flow, upstream pressure high - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: kinked set, clamped line, patient vein issue.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the iV administration set per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Symptom: Air-in-line detection
- Confirm the presentation - typically air-in-line alarm, infusion paused - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: air in set, improperly primed tubing.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the peristaltic roller / pump mechanism per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Patient care floors
- ICU
- OR
- Oncology / infusion centers
- Home health (portable pumps)
Documents & Manuals
No documents available for this device yet.
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