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Periodic Maintenance

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Periodic Maintenance

Battery Replacement

The only regular maintenance required for the L6-series of GuardLogix Controllers is periodic replacement of the battery that backups volatile memory. The battery should be replaced at least every 3 years. The L7 GuardLogix Controllers have replaced the Lithium battery with a capacitor-based energy storage module that does not require period replacement.

Functional Operation Testing

As it is possible that some safety devices (such as e-stop switches) may not be actuated for extended periods of time, the various components of the GIS, while highly reliable, will be examined and functionally tested on an annual basis to reduce the probability that an undetected fault exists that could lead to a hazardous condition.

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