SenTec SDM
SenTec · Model SDM
Flip feet serving as carrying handle or to adjust angle for improved table-top viewing Mountable on roll/infusion stands, wall mounts/railings, transport incubators, etc.
Key tips
- ·A no-signal/flatline alarm gets checked on the patient first, not the monitor - rule out a real clinical event before troubleshooting.
- ·Recalibrate NIBP against a reference manometer, not just a self-test pass.
- ·Reused patient cables (SpO2, ECG leads) are a common source of intermittent-fault complaints - swap the cable before the module.
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.
tcPCO2 / tcPO2 readings drift or slow to stabilise
HighSymptoms: Transcutaneous CO2 / O2 values off vs a reference, long stabilisation, drift over hours.
Root cause: Old sensor membrane / electrolyte, a sensor past its remembered life, or a calibration / gas-bottle fault.
Sensor membrane change / "service sensor" prompt
MediumSymptoms: The monitor prompts for a membrane change or sensor service, or the sensor will not calibrate.
Root cause: Membrane / electrolyte at end of life (typically every ~28-42 days), or a worn sensor.
Docking-station / calibration-gas fault
MediumSymptoms: Calibration fails in the docking station, gas-bottle empty or expired.
Root cause: Empty / expired SenTec Gas bottle, or a docking-station / regulator fault.
SpO2 / pulse-oximetry fault
MediumSymptoms: No SpO2 / pulse or poor signal from the combined sensor.
Root cause: Sensor optics or cable fault.
Battery / power / attachment fault
LowSymptoms: Short battery run time; the sensor will not stay attached (ear clip / adhesive ring).
Root cause: Aged battery, or worn attachment accessories.
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.
Sensor membrane-change kit & electrolyte
Change per the schedule (e.g. every 28-42 days).
Class ConsumableRel. cost $$R&R Fairly easy
tcpO2/tcpCO2 sensor
Class Frequent wear itemRel. cost $$$$R&R Easy
SenTec Gas bottle
Class Frequent wear itemRel. cost $$R&R Easy
Ear clip / adhesive attachment rings
Class ConsumableRel. cost $R&R Easy
Battery
Class Periodic replacementRel. cost $$R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Sensor membrane-change kit & electrolyte Change per the schedule (e.g. every 28-42 days). | Consumable | $$ | Fairly easy |
| tcpO2/tcpCO2 sensor | Frequent wear item | $$$$ | Easy |
| SenTec Gas bottle | Frequent wear item | $$ | Easy |
| Ear clip / adhesive attachment rings | Consumable | $ | Easy |
| Battery | Periodic replacement | $$ | Fairly easy |
Relative cost: $ lowest · $$$$ 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.
- ·Routine cable and lead-wire inspection for fraying/wear
- ·Battery conditioning cycle
- ·NIBP calibration check against a reference manometer
- ·ECG / SpO2 accuracy verification against a patient simulator
- ·Annual electrical safety test
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: Readings drift / will not calibrate
- Perform a membrane change with fresh electrolyte if it is due or prompted.
- Confirm the SenTec Gas bottle is in date and not empty.
- Run a full calibration in the docking station.
- Allow the full stabilisation time on the patient.
- Replace the sensor if it will not calibrate with a fresh membrane.
Symptom: Docking / gas fault
- Fit a fresh, in-date gas bottle.
- Check the docking-station seating and the sensor contacts.
- Run the calibration again.
- Clean the docking-station gas port.
- Refer the docking station for regulator service if calibration still fails with good gas.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- ICU / CCU
- Emergency Department
- OR / PACU
- General med-surg floors
- Step-down units
- Telemetry units
Documents & Manuals
- SenTec Monitor Instruction ManualUser Manual · External
- SenTec Monitor Quick Reference AdultUser Manual · External
- SenTec Monitor Quick Reference NeonatalUser Manual · External
- Monitor Instruction ManualUser Manual · External
- SenTec BrochureBrochure · External
- BrochureBrochure · External
- SenTec SDM Technical ManualDocument · External
- Monitor Quick Reference NeonatalDocument · External
- Technical ManualDocument · External
- Monitor Quick Reference AdultDocument · External
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
Device requires the use of an Isolation Transformer in combination with the SDM in home care settings to comply with applicable safety standards.
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