Roche CoaguChek XS
Roche · Model CoaguChek XS
The smart way to test INR at the Point of Need The Roche CoaguChek XS system provides patients with independence, better outcomes and increases their quality of life.
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.
INR result out of expected range / QC failure
HighSymptoms: INR does not match the clinical picture or a lab draw, on-board or liquid QC fails.
Root cause: Expired or heat-damaged strips, a wrong-technique sample (too small / too slow / air), or use outside the operating temperature range.
Error code during a test
MediumSymptoms: Numbered error (e.g. strip / temperature / timing errors) on the display, result suppressed.
Root cause: A specific condition indexed in the meter's error-code list - strip, sample, temperature, or a meter fault.
Strip not detected / will not start
MediumSymptoms: Meter does not recognise the test strip or the code chip.
Root cause: Contaminated strip-guide contacts, a wrong / missing code chip, or a damaged strip.
Battery / power fault
MediumSymptoms: Short battery life, will not power on, will not charge (INRange).
Root cause: Depleted or aged battery.
Data transfer / connectivity fault (XS Plus / INRange)
LowSymptoms: Results will not download / sync via cable, Bluetooth or the base unit.
Root cause: Cable / port, Bluetooth pairing, or the docking base.
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.
Test strips and code chip
Store per the insert; heat damages them.
Class Frequent wear itemRel. cost $$R&R Easy
Liquid QC controls
Class Frequent wear itemRel. cost $$R&R Easy
Battery / rechargeable pack
Class Frequent wear itemRel. cost $R&R Easy
Strip-guide / contact assembly
Class Periodic replacementRel. cost $$R&R Moderate
Docking base / cable (XS Plus / INRange)
Class Periodic replacementRel. cost $$R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Test strips and code chip Store per the insert; heat damages them. | Frequent wear item | $$ | Easy |
| Liquid QC controls | Frequent wear item | $$ | Easy |
| Battery / rechargeable pack | Frequent wear item | $ | Easy |
| Strip-guide / contact assembly | Periodic replacement | $$ | Moderate |
| Docking base / cable (XS Plus / INRange) | Periodic replacement | $$ | Easy |
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: INR result questionable / QC fails
- Repeat with a new strip from a correctly stored, in-date vial and a fresh fingerstick applied within seconds.
- Run the liquid QC at the expected level.
- Confirm the code chip matches the strip lot.
- Check the operating temperature.
- If QC fails with good strips, quarantine the lot; if it passes but patient INR still disagrees with the lab, refer the meter.
Symptom: Error code / strip not detected
- Note the error code and look it up in the meter's user guide.
- Clean the strip-guide contacts.
- Fit the correct code chip.
- Retry with a fresh strip.
- Contact Roche if the code persists.
Technical Specs
- Height
- 138
- Length
- 28
- Weight
- 127
- Width
- 78
Documents & Manuals
No documents available for this device yet.
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