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Deploying a technical solution without thorough testing represents an unnecessary risk. FAT and SAT testing services are essential steps that help prevent errors, delays, and unexpected costs before commissioning. That is why we provide professional FAT and SAT testing as part of a reliable and high-quality delivery process.
FAT and SAT testing services make it possible to verify the functionality of equipment and systems before they are put into real operation. Customers gain confidence that the solution meets the technical specification, is correctly configured, and fully prepared for safe and reliable operation.
What Are FAT and SAT Tests and Why They Matter
FAT (Factory Acceptance Test) and SAT (Site Acceptance Test) are standard acceptance procedures widely used in industry, automation, IT, and safety systems.
Their purpose is simple: to verify that the delivered solution meets technical, functional, and project requirements before it is put into actual use. The result is higher system reliability, reduced risk of failures, faster commissioning, and better control over delivery quality.
FAT Tests at Our Facilities (Factory Acceptance Test)
FAT tests are carried out at our facilities prior to shipping the equipment to the customer. This pre-delivery testing phase allows detailed verification of the solution in a controlled environment.
Our FAT tests include:
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comprehensive testing of the equipment in the presence of the customer or their representative,
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verification of system configuration and functionality,
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testing communication with third-party systems where applicable,
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fine-tuning details and implementing feedback before delivery,
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preparation of a formal FAT test report as part of the project documentation.
Customer benefit
The customer can review the solution in its real form before delivery. Any adjustments are addressed early, without time pressure or impact on live operations.
After successful completion of the FAT test, the equipment is marked as tested and ready for shipment.
SAT Tests at the Customer Site (Site Acceptance Test)
SAT tests are performed directly at the customer’s installation site. They represent the final verification step before official handover and system commissioning.
SAT tests include:
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verification of correct installation and wiring of equipment,
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functional testing under real operating conditions,
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testing integration and communication with the customer’s existing systems,
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verification of alarms, inputs, outputs, scenarios, and automation functions,
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configuration adjustments based on real on-site requirements,
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training of operators or technical staff, if included in the scope.
Test results are recorded in a SAT report, which, once signed by the customer, serves as official confirmation that the solution has been installed, tested, and is ready for operational use.
Why Combine FAT and SAT Tests
Combining FAT and SAT testing ensures full transparency and technical alignment before system startup. It helps eliminate misunderstandings, confirms performance in advance, and gives customers confidence that the system will operate exactly as intended. The result is smoother commissioning, fewer unexpected issues, and a seamless transition into operation.
FAT and SAT Testing as Part of a Reliable Delivery Process
We carry out FAT and SAT tests in a structured and documented manner, in accordance with the project specification. At Telegrafia, FAT and SAT testing services form an integral part of our reliable delivery process, ensuring that every system meets technical, safety, and operational requirements before commissioning. These services are suitable for automation solutions, safety systems, control systems, and integrated technological units.
If you want confidence that your delivered solution is functional, safe, and ready for real operation, FAT and SAT tests should be a natural part of your project. They represent a key step toward reliable system deployment and long-term operational stability. In testing, confidence is built before operation begins.
The article was written by
Róbert Jakab
Robert is like a moving photograph – because he is like a video. He can capture 60 frames per second. Whenever something happens, he records it. Currently, he’s working on smaller videos and hoping to make a feature film one day and then its sequel. Telegrafia 2: Monkey Power