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Jurnal Instrumentasi dan Teknologi Informasi (JITI)
Published by Politeknik Gajah Tunggal
ISSN : 27467635     EISSN : -     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering Energy Engineering
Topik-topik meliputi bidang-bidang (namun tidak terbatas pada): Topics of interest include (but not limited to) : Teknologi Informasi (Information Technology) : Rekayasa Perangkat Lunak (Software Engineering) Pengetahuandan Data Mining (Data Mining) Teknologi Multimedia (Multimedia Tecchnologies) Mobile Computing Parallel / Distributed Computing Kecerdasan Buatan (Artificial Intelligent) Grafika Komputer (Coumputer Graphics) Virtual Reality Power Systems : Pembangkit (Generator) Distribusi Daya (Power Distribution) Konversi Daya (Electrical Power Convertion) Sistem Proteksi (Protection Systems) Bahan Tenaga Listrik (Electrical Material) Isyarat, Sistem dan Elektronika (Signal, System and Electronics) Pengolahan Isyarat Digital (Digital Signal Processing) Sistem Robotika (Robotic Systems) Pengolahan Citra (Image Processing) Instrumentasi Biomedis (Biomedical Instrumentation) Mikro elektronika (Micro Electronics) Embedded Systems
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 100 Documents
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Modifikasi HMI Dan Program PLC Sebagai Monitoring Debit Aliran Cooling Sistem Mesin Cold Runner 2000CC (20pt) Susilawati, Dera; Yogi Tama Muhammad Ardiyansyah; Ari Kuswantori
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 2 (2025): Mei
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

This research discusses monitoring the flow rate used as a cooling medium for a cold runner type curing machine which is equipped with a flow sensor and integrated with an Omron PLC and HMI TS1100 to increase production results in the IMD-50 curing machine. This system is designed to monitor and control coolant flow accurately, so as to maintain product quality. Tests were carried out using the Wilcoxon test method to analyze NG data before and after implementing the modification to add the SM7000 IFM floe sensor, to ensure a significant increase in production efficiency and quality. The research results show that the use of the IFM SM7000 floe sensor on a 2000 cc cold runner curing machine and the integration of the Omron PLC and HMI TS1100 significantly improves process control and reduces torn and short mold NG products. In addition, payback period analysis shows that investments in this system can be returned in a relatively short time, making it an economical andeffective solution for the manufacturing industry. Thus, the implementation of this technology not only provides technical benefits but also significant financial benefits for companies.
Modifikasi Sistem Kontrol Heater Dengan Display Thermocontrol dan Sensor Thermocouple Pada Mesin Cutting Wind Up ITL.01.TL.01 Choirunnisa, Anis; Dharmanto; Wahyu Pebriansyah Asmara; Paul Michael Siahaan; Aliifah, Naila Zulfa
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 2 (2025): Mei
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

PT. XYZ, a motorcycle tire factory, encountered a malfunction in the ITL.01.TL.01 cutting machine due to an overheating heating system. This research aims to modify the heating system on the ITL.01.TL.01 machine used for cutting inner liners. Manual cutting caused variations in inner liner length (73-78 meters), impacting production efficiency and consistency. The improvement method involved modifying the heater control system. Data were obtained through direct observation and analyzed using descriptive statistics. The modification, including the addition of a thermocouple sensor for real-time temperature monitoring, improved accuracy and efficiency in temperature control. Power calculations showed that the modified system operated with better energy efficiency. Paired T-test analysis indicated a significant performance improvement after the modification. These modifications allowed the cutting machine to operate, reducing material length variation and increasing overallefficiency.
Perancangan Sistem Informasi Surat Jalan dan Lembaran Permintaan Perbaikan (LPP) Berbasis Website di Gudang Spare Part PT Ban Indonesia Choirunnisa, Anis; Gefallen; Putri, Tia Puspita; Ahmad Zohari
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 2 (2025): Mei
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

PT Ban Indonesia faces challenges in managing delivery notes and Repair Request Sheets (LPP) in the spare parts warehouse, which are crucial for the smooth operation of production machines. The repetitive and non- integrated management process leads to inefficiency and potential errors. This study developed a web-based information system using Microsoft Visual Studio Code, the CodeIgniter framework, and MySQL database. The research results show that the designed web-based information system can improve time efficiency in managing delivery notes and LPP. This system successfully reduced the time required for document processing from an average of 160 seconds to 50.4 seconds. Consequently, there is a significant efficiency increase of 68.5%.
Rancang Bangun Sistem Kontrol Elektro Pneumatik Pada Alat Bantu Pemotong Green stick tube Arif Cahyono, M. Ridwan; Syifa Amalia Azzahra Putri Wardoyo; Henry Prasetyo; Susilawati, Dera
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 2 (2025): Mei
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

The current process for cutting green stick tubes at the company is still done manually by operators using scissors because the extruder machine cannot cut sizes below 1,000 mm. As a result, sizes 6.00-9 and 6.50-10 must be cut manually before the splicing process. The green stick tubes coming out of the extruder often exceed the splicing machine’s cutting tolerance of 20 mm. According to the data, sizes 6.00-9 and 6.50-10 with a length of 1010 mm need to be cut to 840 mm and 910 mm, respectively. The average cutting time per shift is 164.6 seconds, influenced by the time operators take to find scissors and the lack of efficient cutting tools. The main issues in this cutting process are caused by three factors: Machine, Material, and Man. The extruder machine cannot cut green stick tubes smaller than 1,000 mm. The green stick tube material of sizes 6.00-9 and 6.50-10 needs to be cut because their length exceeds the requirement. Additionally, inconsistencies among operators when cutting occur due to the lack of proper tools or guides. To address these issues, a cutting aid tool using a heater and pneumatic system is designed. This tool is expected to facilitate the cutting process of green stick tubes. The design of this tool aims to overcome the extruder machine’s inability to cut smaller sizes, reduce unnecessary additional time, ease the cutting process for operators, decrease the variation in cutting time, and improve the workflow in the splicing section, so the green stick tubes can be processed directly without additional hindrances.
Rancang Bangun Website Order Pada Bagian Bonding Agent Di Mold Departement PT. RCI Suharyanti; Faishal Hizbullaah; Kuswantori, Ari
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 2 (2025): Mei
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

The rapid advancement in information technology (IT) has prompted various industrial sectors to adoptdigitalization to enhance efficiency and productivity. PT. RCI, a manufacturing company in Indonesia, faceschallenges with time-consuming and error-prone manual ordering and monitoring processes. This study aims toaddress these issues by designing and building a website-based order insert system. The digitalization process isexpected to reduce ordering time, improve operational efficiency, and minimize errors. The methods used includeUnified Modeling Language (UML) modeling, with application development employing the CodeIgniterframework and PostgreSQL database. The study results indicate that digitalization and the use of informationtechnology can improve data management efficiency and effectiveness. The implementation of this system isanticipated to bring significant improvements to PT. RCI's production processes and provide broader benefits tothe manufacturing industry.
Modifikasi Sistem Counter Length Tread Pada Mesin Building PT ASD Surhayati; Susilo Wardoyo, Adik; Samudra Hidayah, Ihsan; Zacky, Muhammad Farid
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 7 No. 1 (2025): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

The positioning system for the photocell on the PT ASD tire building machine's tread counter length is still manually operated and relies on the operator's intuition. The operator needs several attempts to adjust the photocell's position to produce tread cuts that meet specifications. These repeated trials result in an average of about 75% NG (Not Good or failed) tread from the total number of trials conducted in one tread length adjustment process. In this paper, the author modifies the tread counter length system to change the manual system into an automatic one that can accurately determine the photocell position to achieve the desired tread cut length. The control system created consists of a PLC as the main controller, an encoder as the position reader, and an inverter and electric motor as the photocell movers. Based on testing results after the modification, a photocell positioning accuracy of 99.5% was achieved, and the occurrence of NG tread during adjustment decreased by 60.72%.
Analisis Perbedaan Pembacaan Kalibrator Temperatur dengan Drywell Menggunakan Uji Wilcoxon Choirunnisa, Anis; Kuswantori, Ari; Rizki Nurhasan, Muhamad; Putra, Hagi Sugara
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 7 No. 1 (2025): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

The oven calibration process is a crucial step in ensuring the accuracy of temperature testing on tire components. At the PT XYZ DKM Plant, oven calibration is still performed externally due to the lack of a nine-point temperature calibrator compliant with AS 2853. This impacts calibration time and costs. Therefore, this study aims to design and analyze the performance of a nine-point temperature calibrator compared to the AIS-TCL-3 master temperature calibrator. The test was conducted at a temperature range of 30°C to 150°C with a minimum of 30 data points per point. The results were then analyzed using normality tests, Wilcoxon test, and Cohen's d test. The Wilcoxon test results showed no statistically significant differences between the designed instrument and the master instrument. Furthermore, all measurement values were within the ±1°C tolerance limit as per ASTM D1509-15 standard. This is supported by the Cohen's d value, which indicates a low to moderate difference in effect. Thus, the designed calibrator tool is declared suitable for use in internal calibration processes and can be an economical solution for the company.
Rancang Bangun Digitalisasi Formulir Perintah Kerja Berbasis Website dan Aplikasi Android dengan Metode Unified Modelling Language (UML) Choirunnisa, Anis; Ardhianti Purna Murti, Zefanya; Fajrian, Rifki Alwi
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 7 No. 1 (2025): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

This study aims to design and build a website-based FPK digitalization system and android application in the Engineering Section. This system is designed as a solution to overcome the constraints of the manual system that has been used so far, such as process delays, risk of data loss, and cost and time inefficiencies. The methodology used in this study is the Agile method for software development and the Unified Modeling Language (UML) for system design, including Use Case Diagrams, Activity Diagrams, Sequence Diagrams, and Class Diagrams to describe the structure, workflow, and interactions between users comprehensively. Data collection was carried out through direct observation, literature studies, and historical data analysis such as the number of FPK usage and manual input time. The result of this study is an FPK digitalization system that involves four main actors, namely Admin, Section Head, Engineer, and Tenant. This system has main features that include Complain Form, Work Order, Approval, and Satisfaction Survey. Each user has different access and functions according to their respective roles. The conclusion of this study shows that the FPK digitalization system is able to increase work efficiency, reduce human error, reduce operational costs, and provide digital archives that are safer and easier to access.
PERANCANGAN SISTEM INFORMASI STOCK COMPOUND BERBASIS WEBSITE DENGAN PENDEKATAN UNIFIED MODELLING LANGUAGE Susilawati, Dera; Zohari, Ahmad; Ali Darmawan, Ferdy; Wahyu Sudrajat, Danar
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 7 No. 1 (2025): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

PT RCI faces challenges in managing FIFO stock compound information in the mixing department, the system currently used is still manual with a coin board as a tool for recording and visualizing data. This condition makes it difficult to monitor stock in real time, increases the risk of compound taking errors, and takes a long time to update data every day. To overcome this problem, this study designs a website-based stock information system using UML (Unified Modeling Language) as a visual modeling language to make it easier for users to understand and interact with the system. UML design is carried out as an initial step before website development begins. This system is designed to make the process more efficient and structured. The UML used includes 4 types of diagrams, namely Use Case Diagram, Activity Diagram, Sequence Diagram, and Class Diagram. The design of a website- based stock information system was successfully built using UML, which involved 2 actors, namely: Operator and Staff.
Rancang Bangun Kontrol Otomatis Penyemprotan Chemical Menggunakan Motorized Valve Pada Discharge Conveyor Susilawati, Dera; Ibnu Rusydi, Muhammad; Prasetyo, Henry; Waqis Tianto, Akbar; Caesar Fistiansyah, Najwan
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 7 No. 1 (2025): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

The coal transportation system using conveyor belts at PT AFY generates airborne coal dust, particularly in the discharge conveyor area, which poses a risk of environmental pollution and endangers workers' health. To address this issue, an automatic chemical spraying control system was designed using motorized valves operated by signals from the discharge conveyor. The airborne dust generated during coal transport consists of PM2.5 and PM10 particulates. Based on measurements using an air quality detector in the discharge conveyor (DC) area, PM2.5 concentrations ranged from 78 to 243 μg/m³ and PM10 from 102 to 318 μg/m³, categorized as unhealthy to very unhealthy. The chemical spraying system uses motorized valves to control the opening and closing of chemical flow. This research aims to design and implement an automatic chemical spraying system to reduce coal dust in the discharge conveyor area. The system is designed with motorized valves controlled by discharge conveyor signals. The development process includes planning and designing the control system. Dust level measurements before the system was installed showed an average of 168.2 μg/m³ for PM2.5 and 332.3 μg/m³ for PM10 (very unhealthy category). After implementation, the dust levels decreased to 19.4 μg/m³ for PM2.5 and 53.5 μg/m³ for PM10 (moderate to good category), with a reduction efficiency of 88.46% for PM2.5and 83.90% for PM10.

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