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Title: Automatic Chart Changers Operation & Maintenance
Author: Don E. Carter
Source: 1981 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1981
Abstract: Automatic chart changers were developed to allow the unattended operation of circular chart recording instruments for extended periods of time while still providing for timely changing of the charts. Not only do automatic chart changers allow for extended unattended operation, they also allow for synchronous chart changing of large numbers of recorders at any chosen time and interval. Use of these devices reduces personnel requirements, and improves the uniformity and accuracy of recording periods, thus simplyfying the chart processing and gas accounting.

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