This message is commonly caused by a defective membrane or dried electrolyte. This video tutorial will guide you through the steps to resolve the error message.
| Possible Cause | Recommended Action |
|---|---|
| Membrane related (defective or dried up electrolyte) | Change the membrane: 1) if it is damaged or missing, has a loose fit, or if there is trapped air or dry electrolyte under the membrane 2) sensor calibration takes almost 14 minutes or cannot be completed within 14 minutes |
| PCO2 electrode and/ or white PO2 sensing spot contaminated | If after having changed the sensor membrane the calibration still takes almost 14 minutes or cannot be completed within 14 minutes contact qualified service personnel to clean the sensor without membrane. |
| Sentec TC Sensor defective | If the problem persists the Sentec TC Sensor is defect. Replace it with a new one. |
| For more troubleshooting information, see our Service Manual. |
