Precision Medical EasyPulse TOC
Precision Medical · Model EasyPulse TOC
Total oxygen concentrator. The EasyPulse TOC is built with advanced Controlled Minute Volume (CMV) technology. No matter breathing rate, Precision Medical's proprietary CMV technology consistently delivers a fixed amount of oxygen every minute during the first third of inspiration.
Key tips
- ·Don't extend filter/tubing replacement intervals to save cost - this is an infection-control issue, not just a performance one.
- ·Flow accuracy drift is often the earliest sign of a failing sensor, well before an outright alarm.
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.
Low O2 concentration alarm
HighSymptoms: Oxygen-concentration alarm, delivered O2 below spec at flow.
Root cause: Aged sieve beds (molecular sieve), a compressor / valve fault, an air leak, or an inlet-filter blockage.
Compressor fault / will not build pressure
MediumSymptoms: Weak or no flow, compressor noisy or hot, thermal cut-out.
Root cause: Worn compressor / valve heads, or a cooling-fan fault.
Flow-control / flowmeter fault
MediumSymptoms: Flow will not adjust or does not match the setting.
Root cause: Worn flow-control valve or flowmeter.
Filter blockage
MediumSymptoms: Reduced performance, compressor working hard.
Root cause: Dirty gross-particle / cabinet / final bacteria filter.
Excessive noise / vibration
LowSymptoms: Loud operation, rattling.
Root cause: Worn compressor mounts or a loose panel.
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.
Molecular sieve beds
Class Periodic replacementRel. cost $$$R&R Difficult
Compressor / valve-head rebuild kit
Class Periodic replacementRel. cost $$$R&R Difficult
Inlet / cabinet / final filters
Class Frequent wear itemRel. cost $R&R Easy
Flow-control valve / flowmeter
Class Major service partRel. cost $$R&R Moderate
Cooling fan
Class Periodic replacementRel. cost $R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Molecular sieve beds | Periodic replacement | $$$ | Difficult |
| Compressor / valve-head rebuild kit | Periodic replacement | $$$ | Difficult |
| Inlet / cabinet / final filters | Frequent wear item | $ | Easy |
| Flow-control valve / flowmeter | Major service part | $$ | Moderate |
| Cooling fan | 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.
- ·Filter and tubing replacement
- ·Flow accuracy check
- ·Annual full PM
Error Codes
Extracted directly from this unit's own service manual.
FC1Battery near depletion / Replace with charged battery or switch to alternate power source.
Battery near depletion / Replace with charged battery or switch to alternate power source.
FC2Battery near depletion / Replace with charged battery or switch to alternate power source.
Replace with charged battery or switch to alternate power source.
FC3Battery Depleted / Replace with charged battery or switch to alternate power source
Replace with charged battery or switch to alternate power source
FC4TOC does not recognize installed battery / Verify battery is fully inserted into the TOC. Remove and reinstall battery. Verify battery is for use with the PM4400 TOC.
Verify battery is fully inserted into the TOC. Remove and reinstall battery. Verify battery is for use with the PM4400 TOC. Replace battery with new battery.
FC51. Allow battery to warm up and charging will start automatically after alarm is acknowledged. 2. Replace with another battery. 3. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
Allow battery to warm up and charging will start automatically after alarm is acknowledged. Replace with another battery. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
FC61. Allow battery to cool, charging will start automatically after alarm is acknowledged. 2. Replace with another Battery. 3. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
Allow battery to cool, charging will start automatically after alarm is acknowledged. Replace with another Battery. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
FC7TOC or parts of TOC are overheating / Power off TOC and allow to cool. Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
Power off TOC and allow to cool. Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
FC8TOC or parts of TOC are overheating / Power off TOC and allow to cool. Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
Power off TOC and allow to cool. Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
FC9TOC or parts of TOC are overheating / Power off TOC and allow to cool. Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
Power off TOC and allow to cool. Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
FC10TOC or parts of TOC are overheating. TOC will shutdown if condition cannot be resolved./ Power off TOC and allow to cool 5 to 10 minutes . Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
Power off TOC and allow to cool 5 to 10 minutes. Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
FC11TOC or parts of TOC are overheating. TOC will shutdown if condition cannot be resolved./ Power off TOC and allow to cool 5 to 10 minutes . Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
Power off TOC and allow to cool 5 to 10 minutes. Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
FC12TOC or parts of TOC are overheating. TOC will shutdown if condition cannot be resolved./ Power off TOC and allow to cool 5 to 10 minutes . Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
Power off TOC and allow to cool 5 to 10 minutes. Ensure the TOC is well ventilated. Return the TOC to your prescribed dose. If alarm condition persists, contact your Healthcare Provider. Switch to an alternate oxygen source.
FC13TOC is unable to detect patient’s breath with TOC in Pulse mode / Verify cannula length is a maximum of 7 feet. Verify cannula connection is tight. Verify cannula nasal prongs are properly placed into nostrils. Breathe through the nose and not the mouth. Use “nasal cannula” only; do not use cannula with mask.
Verify cannula length is a maximum of 7 feet. Verify cannula connection is tight. Verify cannula nasal prongs are properly placed into nostrils. Breathe through the nose and not the mouth. Use “nasal cannula” only; do not use cannula with mask.
FC141. Reduce level of activity to lower breath rate. 2. If alarm persists, change to alternate oxygen source and contact your Equipment Provider.
Reduce level of activity to lower breath rate. If alarm persists, change to alternate oxygen source and contact your Equipment Provider.
FC15Cannula blocked or pinched / Verify the cannula is not blocked or pinched. Replace cannula if damaged.
Verify the cannula is not blocked or pinched. Replace cannula if damaged.
FC16TOC does not recognize the position of the Settings Dial / Ensure Settings Dial pointer is not between settings. Verify dial is pointing directly at setting.
Ensure Settings Dial pointer is not between settings. Verify dial is pointing directly at setting. If alarm condition persists, select a different setting and then return to prescribed setting.
FC17Oxygen Concentration is below 83% / Continue to use TOC and contact your Healthcare Provider. Switch to an alternate oxygen source.
Continue to use TOC and contact your Healthcare Provider. Switch to an alternate oxygen source.
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: Does not reach or hold the set pressure
- Run the device's pressure-verification against a calibrated manometer with a test lung / cap.
- Check for internal leaks and a blocked pressure-sensing line.
- Confirm the mask / circuit is not the leak source.
- Replace the pressure sensor if it fails verification.
- Replace the blower if it cannot meet flow demand.
Symptom: Blower noisy / failing / cannot meet flow
- Listen for bearing rumble or rattle from the blower.
- Check the inlet air filter is clean.
- Confirm no internal air leak.
- Replace the blower / motor assembly.
- Re-verify pressure and flow after replacement.
Symptom: Humidifier fault (no / excessive humidity, water in the tubing)
- Confirm the heater plate warms and the chamber seats fully.
- Inspect the chamber seal and the heated-tube connector.
- Check the humidity setting against ambient conditions.
- Replace the chamber seal or the heated tube.
- Replace the humidifier heater assembly if it will not heat.
Symptom: Therapy / compliance data will not download
- Try a known-good SD card in the correct slot.
- Check the card is not write-protected or corrupt.
- Confirm the wireless module / modem where fitted.
- Read the card on a PC to confirm data is being written.
- Replace the SD card / slot or the wireless module as isolated.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Respiratory Therapy department
- Patient floors
- Emergency Department
- Home care (portable units)
Documents & Manuals
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