Precision Medical Air-Oxygen Blender
Precision Medical · Model Air-Oxygen Blender
Unique. It is the only unit available that allows the clinician to turn the bleed control to ON or OFF providing quieter operation. This feature is especially useful in the NICU and PICU. Durable. The tough ABS housing makes the unit durable and the selection control knob is recessed to prevent accidental damage. Versatile. The blender is easily mounted with a universal mounting bracket. It can be detached from the mounting bracket without removing hoses. Modular. The unique modular design can cut routine maintenance time in half as well as reduce maintenance costs. The unit has easy-to-replace modular components and is easily maintained by all biomed departments. User-Friendly. A large selection control knob makes oxygen percentage adjustments easy. The infection-control-friendly housing is smooth and easy to clean. High-Performance Unit. The highly accurate unit maintains FI02 even at low flows. It is economical and provides cost-savings with less waste.
Key tips
- ·Don't extend filter/tubing replacement intervals to save cost - this is an infection-control issue, not just a performance one.
- ·Flow accuracy drift is often the earliest sign of a failing sensor, well before an outright alarm.
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.
Flow calibration drift
HighSymptoms: Delivered flow rate reads off from a known reference.
Root cause: Internal orifice or float-tube wear.
Valve / regulator seal leak
HighSymptoms: Won't hold set pressure, audible gas leak.
Root cause: Diaphragm or seal degradation.
Gauge / dial fault
MediumSymptoms: Stuck, misreading, or broken gauge needle/dial.
Root cause: Mechanical gauge movement wear.
Fitting / connector leak
MediumSymptoms: Gas leak at a hose or cylinder connection.
Root cause: Worn O-ring or damaged threads.
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.
Regulator / valve seal kit
Class Periodic replacementRel. cost $$R&R Fairly easy
Flow tube / orifice assembly
Class Periodic replacementRel. cost $$R&R Fairly easy
Pressure gauge
Class Major service partRel. cost $R&R Easy
Fitting / connector O-rings
Consumable - replace on any detected leak.
Class Periodic replacementRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Regulator / valve seal kit | Periodic replacement | $$ | Fairly easy |
| Flow tube / orifice assembly | Periodic replacement | $$ | Fairly easy |
| Pressure gauge | Major service part | $ | Easy |
| Fitting / connector O-rings Consumable - replace on any detected leak. | Periodic replacement | $ | 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.
- ·Filter and tubing replacement
- ·Flow accuracy check
- ·Annual full PM
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Flow calibration drift
- Confirm the presentation - typically delivered flow rate reads off from a known reference.
- Check the most likely cause first: internal orifice or float-tube wear.
- Inspect the affected subsystem against the manufacturer's inspection checklist.
- If the fault is confirmed and not a field adjustment, service or replace the regulator / valve seal kit 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: Valve / regulator seal leak
- Confirm the presentation - typically won't hold set pressure, audible gas leak.
- Check the most likely cause first: diaphragm or seal degradation.
- Inspect the affected subsystem against the manufacturer's inspection checklist.
- If the fault is confirmed and not a field adjustment, service or replace the flow tube / orifice assembly 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.
- Respiratory Therapy department
- Patient floors
- Emergency Department
- Home care (portable units)
Documents & Manuals
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