Jurnal Otomasi Kontrol dan Instrumentasi
Vol 2 No 1 (2010): Jurnal Otomasi Kontrol dan Instrumentasi

A Simple Microcontroller-Based 4-20 mA Current Loop Receiver for Sensors with Current Transmitters

Arif Surachman (Unknown)
A. Suhendi (Unknown)
Maman Budiman (Unknown)
Mikrajuddin Abdullah (Unknown)
Khairurrijal Khairurrijal (Unknown)

Article Info

Publish Date
18 Jan 2011

Abstract

A current loop receiver system based on a microcontroller has been developed. The current loop receiver system can serve 8 gas sensors with 4-20 mA outputs, which are handled by employing a multiplexer. The data acquisition of the system is composed of a common operational amplifier-based current loop receiver, a CD4051 multiplexer, an ADS7822 serial analog to digital converter (ADC), and an AT89S52 microcontroller. The measured gas concentration is displayed on the 7-segments or transmitted to a personal computer via the RS232 serial communication to be processed by the Microsoft Excel. Additional functions such as gas concentration level warning and error code display are also provided. Keywords:4-20 mA, Current loop, Microcontroller, Receiver, Transmitter

Copyrights © 2010




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Journal Info
Jurnal Otomasi Kontrol dan Instrumentasi
Website

Abbrev

joki

Publisher

Institut Teknologi Bandung

Subject

Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering

Description

Jurnal Otomasi Kontrol dan Instrumentasi adalah jurnal ilmiah yang diterbitkan oleh Pusat Teknologi Instrumentasi dan Otomasi (PTIO), Institut Teknologi Bandung setahun dua kali (April - Oktober) untuk menyebarluaskan hasil-hasil penelitian dengan fokus dalam bidang otomasi, kontrol, dan ...