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ABSTRACT
An inexpensive modification for an FW-1 water stage recorder to provide a record of energize-deenergize cycles is described. The system can be used in any equipment or process operation and provides a visual record of the performance.
1 Contribution from the Agricultural Research Service, ARS, USDA.
2 Agricultural Engineers, USDA, Northern Great Plains Research Center, Mandan, North Dakota, and Soils Research Helper, formerly with USDA, Grant Forks, North Dakota.
Received for publication August 11, 1972. Accepted for publication September 5, 1972.
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