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Title: A Portable Automated, Inexpensive Mass And Balance Calibration System
Author: J. P. Clark, S. L. Maxwell, III
Source: 1990 Measurement Science Conference
Year Published: 1990
Abstract: Reliable mass meastuements are essential for a nuclear production facility or process control laboratory. DOE Or&r 5630.2 requires that traceable standards be used to calibrate and monitor equipment used for nuclear material measurements. To ensure the reliability of mass meastuementF and to comply with DOE traceability requirements, a pm-table, automated mass and balance calibration system is used at the Savannah River Site. Automation is achieved using an Epson HX-u)TN notebook computer, which can be operated via RS232C interfacing to electronic balances or function with manual data entxy if computer interfacing is not available. This economical, comprehensive, userfriendly system has three main functions in a mass measurement wmol program (MMCP): balance certification, calibration of mass standatds. and daily meaSUremeat of mxxable standards. The balance cettikication program tests for accuracy. precision, sensitivity, linearity, and comerloading versus specific requirements. The mass calibration program allows rapid calibration of inexpensive mass standards traceable to certified Class S standards. This MMCP permits daily measurement of traceable standards to monitor the reliability of balances during routine use. The automated system verities balance calibration, stores results for future use, and provides printed control charts of the stored dam. Another feature of the system permit.5 three different weighing routines that accommodate our need for varying degrees of reliability in routine weighing operations.

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