Fluke Roberts ncsl02 free download

File name Roberts_ncsl02.pdf

Precision in Practice Achieving the best results with precision Digital Multimeter measurements Paul Roberts Fluke Precision Measurement Ltd. Abstract Digital multimeters are one of the most common measurement tools, ranging from simple handhelds to the more sophisticated precision metrology grade instruments. These precision dmms offer a range of specifications, features, and capabilities intended to allow users to make the best measurements for their particular application. However, choosing and applying the most appropriate dmm configuration can be a complex task and may often lead to unexpected results, even for experienced users. This paper explores and explains how precision dmms operate, and provides practical help and guidance on using advanced dmm features with the objective of helping users avoid sources of error in precision applications. Introduction Modern precision digital multimeters are sophisticated measuring instruments offering more than just the ability to measure voltage, current and resistance. The accuracy and stability of metrology grade instruments approach the levels available from the standards used to calibrate them. Such high performance allows these multimeters to be used in place of many traditional laboratory instruments such as voltage dividers and resistance bridges[1]. Not only do metrology grade multimeters provide sufficient precision, they also bring a significant improvement in usability and throughput compared to traditional techniques