What does it mean if the water sampler LCD displays “fault shutdown power failure”?

This message indicates that at some point the power supply was reduced enough that the water sampler did not have enough power to draw a sample, which caused a shutdown of the system. The system will not operate until the Restart button is pushed twice.

Losing ac power without an integral backup battery will cause this type of failure. After power is resumed, pressing the Restart button twice will reset the water sampler to its previous settings.

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