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Manual Reference
HAMILTON-C6 Operator’s Manual, software version 1.2.x, document 10197564/00, dated March 31, 2022.
Manufacturer Recommendation / AEM Status
Manual Scope Limitation
The provided document is the Operator’s Manual, not the HAMILTON-C6 Service Manual.
It provides the manufacturer-listed maintenance schedule, operator-performed filter and battery tasks, preoperational checks, and basic calibration procedures. It does not provide the complete annual service procedure, required service test equipment, electrical-safety test limits, detailed pneumatic performance verification, or the complete CO₂ accuracy-check procedure.
The manual states that service-related preventive maintenance, annual IntelliCuff connection-port maintenance, and the CO₂ accuracy check must be performed by Hamilton Medical authorized service personnel according to the Service Manual.
Manufacturer-Listed Maintenance Frequencies
Between Patients and According to Hospital Policy
Replace the breathing circuit, mask, inspiratory or expiratory filter, flow sensor, nebulizer jar, and expiratory valve set with sterilized or new single-patient-use parts. Run the preoperational checks before clinical use.
Entire Ventilator Between Patients
Run the complete preoperational checks between patients and according to hospital policy.
Every Month, or More Often if Required
Inspect the rear-panel and bottom fan filters and the white air-intake filters outside the HEPA filter for dust and lint. Replace them when needed.
Every 6 Months
Connect the ventilator to primary power for at least four hours to recharge the batteries.
Yearly or as Necessary
Replace the galvanic O₂ sensor when depleted.
Yearly
Replace the air-intake HEPA filter.
Perform service-related preventive maintenance according to the HAMILTON-C6 Service Manual.
When CO₂ is installed, have the CO₂ sensor accuracy check performed according to the Service Manual.
Perform service-related preventive maintenance on the ventilator’s IntelliCuff connection port.
The IntelliCuff device itself is identified as maintenance-free or should be maintained according to facility protocol. The ventilator’s IntelliCuff connection port must receive annual service.
Manufacturer-Listed Calibration and Test Intervals
Preoperational Check
Perform before connecting a new patient.
Leak Test and Flow-Sensor Calibration
Perform after connecting a new breathing circuit or circuit component, including a flow sensor.
O₂ Sensor Calibration
Perform after installing a new galvanic O₂ sensor or when an O₂ calibration alarm occurs. Routine calibration is not required for the paramagnetic O₂ sensor.
Mainstream CO₂ Zero Calibration
Perform at first use, after changing airway-adapter types, or when a CO₂ calibration alarm occurs.
Sidestream CO₂ Zero Calibration
Perform when a CO₂ calibration alarm occurs.
Alarm Testing
Additional manual alarm testing is optional because startup includes an alarm-function self-check.
Part Numbers
The provided Operator’s Manual does not list replacement part numbers in the preventive-maintenance schedule. Confirm current filter, HEPA filter, battery, and galvanic O₂-sensor part numbers through Hamilton Medical’s current parts documentation or product catalog.
AEM Note
If a facility performs this PM at a different interval or changes the listed activities, the alternative procedure should be managed under the facility’s approved AEM program, documented risk assessment, maintenance history, and applicable regulatory requirements.
What This PM Procedure Covers
This procedure covers maintenance-history and operating-hour review; exterior, trolley, cable, hose, connector, and label inspection; fan, air-intake, and HEPA filter maintenance; battery condition and AC-to-battery transfer; startup self-test and alarm indicators; breathing-circuit leak testing; flow-sensor calibration; O₂ and CO₂ calibration status; the preoperational check; annual service and CO₂ accuracy-check applicability; facility-policy electrical-safety documentation; and the final return-to-service decision.
Required Tools and Equipment
Primary AC power source.
Medical-grade high-pressure oxygen supply.
Compatible adult/pediatric breathing circuit.
Adult/pediatric flow sensor and calibration adapter.
Demonstration lung, approximately 2 liters.
Adult endotracheal tube for connection between the flow sensor and test lung.
Appropriate inspiratory bacteria filter.
Replacement rear-panel, bottom, or air-intake filters when needed.
Replacement air-intake HEPA filter when due.
Genuine Hamilton Medical galvanic O₂ sensor when depleted.
Compatible CO₂ sensor and airway adapter when installed.
Approved cleaning and disinfection materials.
Electrical safety analyzer when required by facility policy or the applicable Service Manual.
The Operator’s Manual does not identify the complete test-equipment requirements for the annual service-related PM or CO₂ accuracy check.
Step-by-Step PM Procedure
1. Remove the Ventilator From Clinical Use
Action: Confirm that the ventilator is not connected to a patient and has been released for maintenance. Remove patient-use disposables according to infection-control policy.
Do not perform service or maintenance while a patient is connected.
Expected outcome: The ventilator can be inspected and tested without interrupting patient support.
2. Review Device Information and Maintenance History
Action: Record or verify the model, serial number, software version, total operating hours under System > Info, last PM date, previous repairs, unresolved failures, replacement history, installed options, and whether annual Hamilton service is due.
Installed options may include CO₂, SpO₂, IntelliCuff, Aerogen, and HAMILTON-H900 components.
Expected outcome: All manufacturer-listed maintenance activities due for the installed configuration are identified.
3. Perform the Exterior and Mechanical Inspection
Action: Inspect the ventilator housing, detachable monitor, touchscreen, Press-and-Turn knob, alarm lamp, front-panel keys, monitor post, locking mechanism, tilt and swivel hardware, trolley, wheels, wheel locks, basket, mounts, and support arm.
Inspect the AC power cord, plug, ground pin, retaining clip, power inlet, potential-equalization connection, oxygen hose, inlet fitting, cylinder restraints, inspiratory and expiratory ports, expiratory-valve connection, flow-sensor ports, and tubing connections.
Inspect the CO₂, SpO₂, Aerogen, IntelliCuff, USB, DVI, COM, and nurse-call ports when installed. Verify that labels and markings are present and readable.
Expected outcome: No cracks, loose hardware, contamination, damaged cables, missing ground pin, damaged gas fittings, unreadable labels, or other unsafe conditions are present.
4. Clean and Disinfect the Ventilator
Action: Clean and disinfect the exterior, touchscreen, cables, hoses, and mounting system using methods and agents approved by the manual and facility infection-control policy.
Lock the touchscreen before cleaning. Do not pour fluid onto the ventilator, immerse components, or attempt to sterilize the ventilator interior.
Expected outcome: The ventilator is visibly clean, dry, and free of cleaning-agent residue.
5. Inspect and Replace the Monthly Filters
Action: Inspect the rear-panel fan filter, bottom fan or dust filter, and white air-intake filters outside the HEPA filter for dust and lint.
Replace filters when contaminated, damaged, restricted, or required by the facility schedule.
Expected outcome: All cooling and air-intake filters are clean, correctly installed, and unrestricted.
6. Replace the Annual HEPA Filter
Action: Confirm the last air-intake HEPA-filter replacement date.
When due, remove the rear cover, release the filter retaining clip, remove the outer air-intake filters, replace the HEPA filter, and reinstall the outer filters, retaining clip, and cover.
Use the correct Hamilton-compatible replacement filter.
Expected outcome: The annual air-intake HEPA-filter replacement is complete and documented.
7. Inspect the Galvanic O₂ Sensor
Action: Determine whether the ventilator has a galvanic or paramagnetic O₂ sensor.
For a galvanic sensor, review sensor alarms and calibration status. Replace the sensor when depleted, use a genuine Hamilton Medical replacement, and perform O₂ calibration after replacement.
The optional paramagnetic O₂ sensor is replaced only if it fails and should be serviced by authorized personnel.
Expected outcome: Oxygen monitoring is available without persistent O₂-sensor alarms.
8. Check the Batteries
Action: Inspect installed battery status under System > Info and check for battery-related alarms.
Confirm that the manufacturer-listed six-month recharge has been completed by connecting the ventilator to primary power for at least four hours.
Inspect accessible battery areas for damage, swelling, leakage, corrosion, or overheating. Replace batteries only according to approved facility and manufacturer procedures.
Expected outcome: Batteries charge normally, no physical damage is present, and the ventilator recognizes all installed batteries.
9. Verify Startup Self-Test and Alarm Indicators
Action: Connect the ventilator to primary power and oxygen. Turn the ventilator on.
Verify that the alarm lamp flashes red, yellow, and blue in sequence; the buzzer sounds briefly; the startup self-test completes; the Standby screen opens without unresolved technical alarms; and the touchscreen, front-panel buttons, and Press-and-Turn knob respond correctly.
Expected outcome: Startup completes successfully and the visual and audible alarm indicators operate.
10. Assemble the Manufacturer-Listed Test Setup
Action: Assemble an adult/pediatric breathing circuit with an internal diameter of 10 to 22 mm, adult/pediatric flow sensor, flow-sensor calibration adapter, approximately 2-liter demonstration lung, adult endotracheal tube between the flow sensor and test lung, and required inspiratory bacteria filter.
Confirm that the expiratory-valve membrane is correctly aligned with its metal plate facing upward and that the valve set is fully locked into place.
Expected outcome: The test circuit is correctly assembled and leak-tight.
11. Run the Breathing-Circuit Leak Test
Action: Keep the ventilator in Standby with no patient connected. Open System > Tests & calib and select Leak test.
Follow the on-screen prompts to disconnect and block the patient side of the flow sensor. Reconnect the circuit when prompted and verify that the Leak test displays a green check mark.
If the test fails, inspect the circuit, humidifier, flow sensor, expiratory valve, filters, and connections. Replace questionable external components and repeat the test.
Expected outcome: Leak test passes.
12. Calibrate the Flow Sensor
Action: Keep the ventilator in Standby with no patient connected. Confirm that the flow sensor matches the selected patient group.
Open System > Tests & calib, select Flow sensor, and follow the on-screen instructions to attach the calibration adapter and rotate the sensor assembly.
Verify that calibration finishes with a green check mark.
Expected outcome: Flow-sensor calibration passes.
13. Verify O₂ Calibration
Action: Review the O₂-sensor status.
Run O₂ calibration when a new galvanic sensor was installed, an O₂-sensor calibration-needed alarm is present, or the calibration status indicates failure.
Follow the on-screen calibration instructions and verify a green check mark.
Expected outcome: O₂ calibration passes and monitored oxygen is available without an O₂ calibration alarm.
14. Verify CO₂ Calibration and Annual Accuracy-Check Status
Action: When the CO₂ option is installed, inspect the CO₂ port, sensor, cable, airway adapter, and sampling components. Confirm that components are clean, dry, and undamaged.
Perform zero calibration when required by the Operator’s Manual and review whether the annual CO₂ accuracy check has been completed.
The complete annual CO₂ accuracy-check procedure is not contained in the Operator’s Manual and must follow the Service Manual.
Expected outcome: CO₂ zero calibration passes when performed, and the annual accuracy-check status is documented.
15. Complete the Preoperational Check
Action: Verify correct circuit assembly, successful startup self-test, passed leak test, passed flow-sensor calibration, O₂ calibration when required, CO₂ zero calibration when required, and appropriate alarm response.
Confirm that all applicable items under System > Tests & calib show successful results.
Expected outcome: All required preoperational tests pass.
16. Verify AC and Battery Operation
Action: With the ventilator operating on a test lung, confirm normal operation on primary power and verify that the battery is charging.
Disconnect primary power briefly. Confirm uninterrupted transfer to battery operation and generation of the applicable power-source alarm. Reconnect primary power and confirm that charging resumes.
Do not perform a full battery-runtime or capacity test unless an applicable Hamilton service procedure or facility policy defines the test method and pass criteria.
Expected outcome: The ventilator transfers between AC and battery power without interrupting ventilation.
17. Review Annual Service Requirements
Action: Confirm documentation for annual service-related preventive maintenance, annual HEPA-filter replacement, annual CO₂ accuracy check when CO₂ is installed, annual IntelliCuff connection-port service when installed, and galvanic O₂-sensor replacement when depleted.
Do not represent operator checks alone as completion of Hamilton’s annual service-related PM.
Expected outcome: Required annual service activities are documented as complete or referred for completion before return to service.
18. Final Inspection and Return-to-Service Review
Action: Remove test equipment, reinstall all covers and filters, and confirm that the expiratory valve and required safety components are installed.
Confirm that no technical alarms remain, the unit is clean and dry, the most recent preoperational test results are successful, and the ventilator has been returned to its approved clinical configuration.
Expected outcome: The ventilator is complete, functional, properly configured, and ready for clinical setup.
Electrical Safety Testing
The HAMILTON-C6 is identified as Class I equipment requiring protective-earth grounding. The supplied Operator’s Manual does not provide a scheduled electrical-safety test, test method, or device-specific resistance and leakage-current limits.
Perform electrical safety testing when required by the HAMILTON-C6 Service Manual, facility policy, post-repair procedure, or the facility’s selected electrical-safety standard.
Ground resistance measured in ohms, expected ≤ 0.5 Ω or facility/NFPA 99 criteria if different:
Result =
Touch/chassis leakage measured in microamps:
Facility limit used =
Result =
Pass / Fail =
Document the analyzer, test standard, and test configuration when required by facility policy.
Pass / Fail Criteria
Pass
The ventilator passes PM when inspection identifies no unsafe physical or mechanical defects; due operator-maintenance filters and the HEPA filter have been serviced; batteries charge; AC-to-battery transfer works; startup self-test completes; the alarm lamp and buzzer operate; the leak test passes; flow-sensor calibration passes; required O₂ and CO₂ calibrations pass; no unresolved technical alarms remain; required annual service activities are documented; and electrical safety passes when included in the facility procedure.
Remove From Service
Remove the ventilator from service when any preoperational test or calibration repeatedly fails; a technical alarm or internal malfunction remains unresolved; the alarm lamp or audible alarm does not operate; battery operation or power transfer is unreliable; or unsafe physical, electrical, pneumatic, or mechanical damage is present.
Also remove the unit from service when required filters or safety components are missing; internal contamination may have occurred because the ventilator was operated without an inspiratory bacteria filter; annual service-level PM or CO₂ accuracy testing is due and facility policy does not permit continued use; electrical safety fails; or safe ventilation performance is in doubt.
Copy/Paste CMMS Work Order Procedure
Scheduled PM
Filter Change Only
Use the manufacturer service manual, facility policy, and approved AEM program to determine the final PM interval and return-to-service requirements.