Hamilton-C3 Oxygen Cell Replacement

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Use this guide to replace the oxygen cell in a Hamilton-C3 ventilator. Depleted oxygen cells can cause a variety of issues, several of which are identified on the troubleshooting page for this device.

An “oxygen cell” is a galvanic sensor in which oxygen takes part in a redox reaction that produces a voltage in an electric circuit proportional to the concentration of oxygen at the anode allowing the oxygen cell to be used to determine oxygen concentration. The redox reaction gradually depletes the reagent in the oxygen cell so the cell should be replaced yearly or after every 5,000 hours of use, whichever comes first, or as necessary.

Warning: Hamilton Medical insists that it is important to use Hamilton Medical oxygen cells only to avoid a permanent alarm.

For more information on replacing the oxygen cell, please refer to page 204 in the operator’s manual.

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Hamilton-C3 Oxygen Cell Replacement, Oxygen Cell: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

At the base of the ventilator housing (see diagram) is a removable cover at the far left of the panel. Open the cover by depressing the release button to expose the existing oxygen cell in its socket (see 1).

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Hamilton-C3 Oxygen Cell Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

Pull gently to remove the electrical lead (see 2).
When reassembling, apply the electrical lead to the terminal until the lead locks or latches onto the terminal. Ensure that a solid contact is made with the electrical lead and take care to prevent the lead from becoming dislodged or disconnected during the installation.

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