PARI SpiroSense
PARI · Model SpiroSense
Easy to use. Small, mobile and ready to use thanks to automatic calibration. Traffic light feedback based on an individually set expected value. Fast reading of the electronic diary from the doctor via USB.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Flow / volume accuracy check fails
HighSymptoms: 3-litre syringe verification outside tolerance, questionable FEV1 / FVC.
Root cause: Contaminated or damaged flow sensor, debris / moisture in the flow path, or a reused single-use sensor.
No connection to the PC software
MediumSymptoms: SpiroSense software does not see the device, no data transfer.
Root cause: USB cable / port or driver fault.
Sensor not recognised
MediumSymptoms: Device will not start a manoeuvre, "insert sensor" persists.
Root cause: Sensor mis-seated, damaged, or a sensor-detect contact fault.
Calibration drift over time
MediumSymptoms: Gradual bias in FEV1 / FVC.
Root cause: Flow-sensor aging.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Flow sensor (single-use / reusable)
Class Frequent wear itemRel. cost $$R&R Easy
USB cable
Class Periodic replacementRel. cost $R&R Easy
3-litre calibration syringe
Class Major service partRel. cost $$R&R Easy
Sensor-detect contact assembly
Class Periodic replacementRel. cost $R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Flow sensor (single-use / reusable) | Frequent wear item | $$ | Easy |
| USB cable | Periodic replacement | $ | Easy |
| 3-litre calibration syringe | Major service part | $$ | Easy |
| Sensor-detect contact assembly | Periodic replacement | $ | Moderate |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Calibration verification fails
- Fit a fresh / clean flow sensor and dry the flow path.
- Repeat the 3-litre syringe check at varied speeds.
- Confirm the environmental / BTPS settings.
- Replace the flow sensor if it still fails.
- Re-verify and record the check.
Symptom: Software will not connect
- Confirm the software is installed and the driver loaded.
- Try another USB port / cable.
- Check the device is seen by the operating system.
- Reinstall the software if needed.
- Re-test with a known-good PC.