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Operating manual for the miniservo-control tester

Open-File Report 85-690
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https://doi.org/10.3133/ofr85690

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Abstract

Ever since the implementation of servo-control units (regular and minimodels) with manometers at U. S. Geological Survey streamflow stations, the need for an effective and efficient servo-control unit tester has been paramount among field personnel. In numerous cases, servo-control unit failures were blamed on battery failures and vice versa. There was no valid instrument to definitively identify cause of failure, let alone properly diagnose the servo-control/manometer system. In 1983, two servo-control unit testers were developed and fabricated. One was mechanical in fabrication, operation, and serviceability; the other was electronic. The testers were extensively used and evaluated in Maine, Ohio, Kansas, and Louisiana under a wide range of environmental conditions. The consensus to integrate the best aspects of both testers into one instrument allowed the Survey to finally solve its long-time need for an effective, efficient servo-control unit tester. (USGS)

Suggested Citation

Rapp, W., 1986, Operating manual for the miniservo-control tester: U.S. Geological Survey Open-File Report 85-690, iii, 7 p. :ill. ;28 cm., https://doi.org/10.3133/ofr85690.

ISSN: 2331-1258 (online)

Publication type Report
Publication Subtype USGS Numbered Series
Title Operating manual for the miniservo-control tester
Series title Open-File Report
Series number 85-690
DOI 10.3133/ofr85690
Year Published 1986
Language ENGLISH
Publisher U.S. Geological Survey,
Description iii, 7 p. :ill. ;28 cm.
Additional publication details