Standard Performance Analysis of 4–20 mA Transmitter and RTD Sensors Agains The Conditions Are Not Ideal For Maintaining The Reability of Industrial Automation Systems

Muhammad, Ihsan (2017) Standard Performance Analysis of 4–20 mA Transmitter and RTD Sensors Agains The Conditions Are Not Ideal For Maintaining The Reability of Industrial Automation Systems. Diploma thesis, Universitas Andalas.

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Abstract

One of the roles of industrial automation systems is as an observer, using a sensor and transmitter signaling information sent to the controller. The commonly used signal is a 4-20 mA current signal, because this signal has many advantages, namely live-zero, small conductor cable, immune to noise, and others. Then used 4-20 mA Transmitter and a sensor to know the value of physical quantity that will be transmitted as a current of 4-20 mA. But measurement errors can occur on sensors and transmitters 4-20 mA caused by poor quality of power, environmental changes, noise effects, and the influence of transmission cables. Therefore, It is necessary to analyze the performance of 4-20 mA transmitters and sensors that are used against the un-ideal conditions. The test was performed using 4-20 mA Temperature Transmitter and RTt Pt 100 sensor as temperature sensor, with test type; Transmitter calibration, transmitter source voltage fluctuation, response time of sensors and transmitters to sudden temperature changes, noise influence, AWG and cable length influence to transmitter output current 4-20 mA. The result of the test explains that; Temperature transmitter output not actually 4-20 mA signal, but 4,351-18,001 mA, source voltage fluctuations may affect the transmitter output signal if the source voltage is below the minimum transmitter voltage, the voltage across the carrier and the voltage in the receiver. When a sudden temperature change occurs, there is an accurate temperature readout delay of 75-80 seconds. 4-20 mA transmitters have high immunity to noise. AWG and cable length affect the current value transmitted by the rules; the larger the diameter of the cable then the current passing through the cable is greater and the longer the cable then the current through the cable is getting small. Keywords: Temperature Transmitter 4-20 mA, RTD Pt100 Sensor, industrial automation system

Item Type: Thesis (Diploma)
Primary Supervisor: Zaini, Ph.D
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Fakultas Teknik > Elektro
Depositing User: S1 Teknik Elektro
Date Deposited: 01 Aug 2017 12:03
Last Modified: 01 Aug 2017 12:03
URI: http://scholar.unand.ac.id/id/eprint/27789

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