期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：9
页码：8529
DOI：10.15680/IJIRSET.2015.0409075
出版社：S&S Publications
摘要：A multipurpose calibrator is an industrial instrument used to calibrate various control valves, controlloop parameters and other instrumentation equipment in the process plant. This calibrator is based on the HARTcommunication protocol. A temperature transmitter is a process plant equipment used to send 4-20mA signals for a presetrange of temperature. The sensors for the temperature transmitters can be thermocouples, RTDs (resistancetemperature detectors) and /or thermistors, depending on the sensor used in the control loop. In this paper, we propose alow cost, compact design for a multipurpose calibrator and a temperature transmitter. This paper will intend to solve theproblems faced by small, medium scale industries in developing countries related to their purchase of these costlyprocess plant diagnostics instruments. Moreover these two different instruments will be combined into a single devicefor the better debugging of the plant during the calibration cycles. We propose to cut down the cost of these devices tothe third.
关键词：universal process calibrator ; android; xtr 101; temperature transmitter
