ANSI C39.4 : 1966
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
AUTOMATIC NULL-BALANCING ELECTRICAL MEASURING INSTRUMENTS, SPECIFICATIONS FOR
07-23-2013
01-12-2013
Applies to dc potentiometer and dc bridge types. Describes means of classification eg. exhibiting, recording, scale length, measuring circuit, performance ratings, reference operating conditions, rated operating conditions, extreme operating conditions, quantitative values covered on Detailed Requirement Sheets for each instrument. Performance based on reference operating conditions, rated operating conditions including accuracy, dead band, span step response time, and damping. Extreme operating conditions including ambient temperature, interference, position, vibration, etc. Test procedures conformity of instruments.
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