ManualsePM Series
Mindray · Patient Monitors
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✅ Check the simple stuff first
- Make sure the patient is safe — swap in a backup unit if you need to.
- Reproduce the complaint yourself and write down exactly what you see (screen, alarm, code).
- Check power, battery, cables, accessories, and settings before ordering parts.
- Then open the service manual above and follow its troubleshooting section.
🛠️ Common faults for ePM Series (6)
ECG lead-off or noisy trace source ↗
- Check electrode contact and leadwire-to-adapter connections
- 'ECG Signal Invalid' = high skin impedance: re-prep skin
SpO2 'No Sensor' / 'Sensor Off' source ↗
- Check extension cable at module and sensor-to-cable joint
- Replace sensor; use only specified sensors
NIBP leak / timeout source ↗
- Use correct cuff size for patient category
- Inspect cuff, hose and pump for leaks; run NIBP leakage test
- Timeout limit 120 s adult/ped, 90 s neo
Battery / power alarms source ↗
- Charge on external power
- 'Battery Error', 'Power Board Comm Error' or supply voltage alarms: restart, then service
Recorder problems source ↗
- Out of paper/door open, head hot: let cool
- Init/comm error: restart then service
Network: No CMS / IP conflict source ↗
- Check LAN/WLAN cabling and IP settings
🔢 ePM Series error codes (25)
| Code | Meaning | Next step |
|---|---|---|
| ECG Lead Off / ECG XX Lead Off | Electrode detached or leadwire off adapter cable | Check electrodes and leadwire connections source ↗ |
| ECG Noisy | Noisy ECG signal | Look for noise sources near cable/electrodes; reduce patient motion source ↗ |
| ECG Signal Invalid | Skin impedance too high | Re-prep/reapply electrodes source ↗ |
| SpO2 Sensor Off | Sensor off patient or module | Check connection; replace sensor if persists source ↗ |
| SpO2 No Sensor | Extension cable or sensor disconnected | Check SpO2 cable and sensor; replace sensor source ↗ |
| SpO2 Excess Light | Ambient light too strong | Cover sensor or move away from light source ↗ |
| SpO2 No Pulse / Low Signal Quality / Low Perfusion | No/poor pulse signal | Check sensor position, change site, reduce shivering/motion; replace sensor source ↗ |
| SpO2 Sensor Incompatible / Sensor Error | Wrong or failed sensor | Use specified sensor; replace source ↗ |
| T XX Sensor Off | Temp probe disconnected | Reconnect probe source ↗ |
| NIBP Cuff Loose / Cuff or Airway Leak / Airway Leak | Leak in cuff, tubing or pump | Correct cuff size, reconnect tubing; run NIBP leakage test source ↗ |
| NIBP Airway Error / Cuff Overpressure | Tubing occluded or kinked | Check airway; contact service if persists source ↗ |
| NIBP Timeout | No reading in 120 s (adult/ped) or 90 s (neo) | Check patient, connections; replace cuff source ↗ |
| NIBP Cuff and Patient Mismatch | Cuff type doesn't match patient category | Verify patient category/cuff; check tubing not bent source ↗ |
| XX No Sensor / XX Sensor Error (IBP) | IBP cable/transducer off or failed | Check connections; replace transducer source ↗ |
| Low Battery / Critically Low Battery | Battery low | Connect external power to charge source ↗ |
| Battery Error | Battery may have failed | Contact service source ↗ |
| Power Board Comm Error | Power board communication fault | Restart; contact service if persists source ↗ |
| XX V Too High / Too Low | 2.5/3.3/5/12 V supply out of range | Restart monitor; service source ↗ |
| RT Clock Need Reset / Not Exist | Real-time clock fault | Contact service source ↗ |
| Recorder Init / Comm Error | Recorder fault | Restart; contact service source ↗ |
| Recorder Head Hot | Printing too long | Pause until print head cools source ↗ |
| Recorder out of Paper | No paper or door open | Load paper, close door source ↗ |
| No CMS | Disconnected from central station | Check network connection source ↗ |
| LAN1/WLAN IP Address Conflict / Fail To Get IP | Network address problem | Check network settings source ↗ |
| Storage Card Error | Storage card failed or files damaged | Restart to format card; contact service source ↗ |
🧰 Common checks for Patient Monitors (1)
Leads off / no signal (telemetry) source ↗
- Re-attach ECG leads
- Confirm transmitter is in coverage and batteries are good
📞 Still stuck? Call Mindray
Contact Mindray US
- 📞 Tech support
- 1-877-913-9663
- 🌐 Portal
- Support portal ↗
Outside North America 650-316-3199.
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