--- title: "Redeco ATG fault investigation | Citia" description: "ATG equipment assessment and communication restoration ATG service troubleshooting PT Redeco Petrolin Utama Overview The ATG service troubleshooting work…" url: https://citia-engineering.com/en/projects/redeco-atg-assessment language: en updated: 2026-08-04 type: project site: Citia Engineering Indonesia --- # Redeco ATG fault investigation ATG equipment assessment and communication restoration | Field | Value | | --- | --- | | Year | 2024 | | Status | Finished | | Citia's role | ATG troubleshooting and assessment | | Updated | 2026-08-04 | The assessment examines ATG equipment and communication paths to distinguish devices that can be retained, repaired or replaced. Work records inform legacy-device upgrades, maintenance needs and spare-parts support. ## About this work ### ATG service troubleshooting **PT Redeco Petrolin Utama** #### Overview The **ATG service troubleshooting** work evaluated the *Automatic Tank Gauge* (ATG) system at PT Redeco Petrolin Utama and restored its reliability. The scope covered checking the physical and operating condition of the ATGs, testing the IFX-20000 interface modules, verifying communication between the ATGs and the controller, and evaluating level reading accuracy against *stick reading* results. #### Challenges The inspection found several problems in both the analog and digital ATG systems, including: - Several ATGs gave inaccurate readings, gave no readings, or were completely dead. - Corrosion on power terminals, signal terminals, mechanical parts, and electronic modules. - Water seepage into the devices, caused by outdoor installation in high humidity and a corrosive environment. - Fuses that were blown or missing, damaged encoder cables, short-circuited communication cables, and damaged ATG cards and communication modules. - Analog IFX-20000 modules with blown fuses, voltage drops on some channels, loose connections, and failed data retrieval. - The analog ATG devices and IFX-20000 modules are *discontinued*, so spare parts and technical support are very limited. #### Solutions The actions taken included: 1. Visual inspection of the ATG sensors, housings, junction boxes, terminals, cable installation, and interface modules. 2. Checking the power supply, fuses, grounding, signal paths, and the condition of the communication cables. 3. Troubleshooting and temporary repair of the IFX-20000 modules. 4. Checking and restoring the communication connections between the ATGs, the interfaces, the controller, and the Tank Monitoring System application. 5. Testing data polling and communication consistency through the monitoring system. 6. Comparing the ATG readings with manual measurement using the *stick reading* method. 7. Drafting recommendations to replace modules or ATG units that cannot be repaired, including a plan to migrate the *discontinued* devices to technology that the manufacturer still supports. The communication paths were restored. The evaluation showed, however, that reading accuracy cannot be guaranteed while the old sensors and devices that are past their service life stay in use. #### Lessons learned ATG troubleshooting cannot stop at the communication side. Level reading reliability depends on the condition of the sensors, the power supply, cable terminations, enclosure integrity, the interface modules, calibration, and spare parts availability. Repairing connectivity can bring data communication back, but it does not automatically restore the accuracy of a degraded sensor. For systems with *obsolete* or *discontinued* devices, treat partial repairs as a temporary measure. Phased replacement is needed to keep accuracy, maintainability, and operational continuity. ## Related products - [INTEGRA TMS](https://citia-engineering.com/en/products/tank-management-system.md): INTEGRA TMS is a tank management system that collects automatic tank gauge (ATG) readings for live levels, history, tank tickets and SAP stock posting. ## Contact - Company: PT Citia Engineering Indonesia - Email: services@citiaengineering.com - Telephone: +62 21 278 20286 - Office: Jl. Kaimun Jaya No. 1, Cilandak Barat, Jakarta Selatan, DKI Jakarta 12430, Indonesia [Contact Citia](https://citia-engineering.com/en/contact.md) ## Structured data (JSON-LD) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://citia-engineering.com/#organization", "name": "Citia Engineering Indonesia", "legalName": "PT Citia Engineering Indonesia", "alternateName": "Citia", "url": "https://citia-engineering.com", "logo": { "@type": "ImageObject", "url": "https://citia-engineering.com/media/citia-logo.png", "width": 950, "height": 328 }, "description": "Citia is an engineering and system integration company in Jakarta. We connect field devices, PLC and SCADA, terminal software and enterprise systems, then install, test and maintain them.", "email": "services@citiaengineering.com", "telephone": "+62 21 278 20286", "address": { "@type": "PostalAddress", "streetAddress": "Jl. 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