Site Acceptance Test (SAT): Smooth System Launch Testing

Two engineers discussing data during a site acceptance test (SAT) in an industrial facility, with one holding a tablet

Summary: In manufacturing and engineering, you must test the machines and equipment to ensure they work as expected before using them. The Factory Acceptance Test (FAT) and Site Acceptance Test (SAT) are commonly employed to do this. This post will discuss what SAT means, how it ensures that the machine operates according to the manufacturer’s requirements as well as specifications, and the differences between FATs and Sats. Moreover, we shall give an inclusive checklist for the site acceptance test.

What is a Site Acceptance Test?

Before deeming a machine or system ready for operation, we must perform a Site Acceptance Test (SAT). This comprehensive procedure validates whether the equipment meets the customer’s requirements and ensures the machine operates according to the manufacturer’s recommendations and specifications. Unlike the Factory Acceptance Test (FAT), which we conduct at the manufacturer’s location, we perform the SAT at the buyer’s location.

The Main Purpose of the SAT

The main purpose of the Site Acceptance Test is to ensure proper installation of the machine or system according to the manufacturer’s recommendations and specifications. It also verifies that the machine’s operation complies with the customer’s requirements. By conducting the SAT, we can guarantee that the equipment is ready for operation and meets all necessary standards and specifications.

Difference Between SAT and FAT

While both SAT and FAT validate the functionality of equipment, there are significant differences between the two tests. The Factory Acceptance Test (FAT) is performed before the equipment is delivered to the customer, typically at the manufacturer’s facility. It tests the machine’s performance and ensures compliance with the manufacturer’s specifications.

SAT aims to verify whether the equipment meets the customer’s requirements in the actual production environment. It includes the setup of the test environment, performance testing, and evaluation of test results.

The Purpose of FAT

The primary purpose of the Factory Acceptance Test (FAT) is to ensure the machine or system performs according to the manufacturer’s specifications before transporting it to the customer’s site. FAT is essential for detecting any deviations or discrepancies from the specified requirements. It allows manufacturers to observe the equipment’s performance and address any issues or concerns before connecting the machine to the production process.

Performing a Site Acceptance Test

Before conducting the SAT, careful planning is necessary to ensure a smooth and effective test. The planning phase involves identifying the customer’s requirements, preparing the necessary documentation, and coordinating with the relevant parties. It is vital to establish clear communication channels and define the roles and responsibilities of each party to ensure a successful SAT.

Setup of the Test Environment

The setup of the test environment plays a crucial role in the accuracy and reliability of the SAT. It involves verifying that all necessary facilities and equipment are in place and operational. You should install the machine or system under test according to the manufacturer’s recommendation and specification. Additionally, utilities such as power, water, and compressed air should be available as required.

Tests Conducted during SAT

We typically perform several tests during the SAT to assess the machine’s performance and validate its compliance with the specified requirements. These tests may include testing the internal box pressure and ventilation, conducting performance testing under different operating conditions, and verifying the functionality of control systems and safety features. The SAT procedure may vary depending on the specific machine or tested system.

Ensuring Compliance and Verification

We carefully record the results of the Site Acceptance Test to ensure proper documentation and evaluation. This documentation includes detailed information about the test setup, the procedures followed, and the outcomes of each test performed. We then evaluate the documented results to determine if everything meets the customer’s requirements and the manufacturer’s specifications. This evaluation process helps us identify and address any deviations or discrepancies.

Corrective Action and Problem Resolution

If the Site Acceptance Test identifies any issues or problems, we take corrective action to rectify them. The manufacturer and the customer work together to solve these issues. Timely problem resolution ensures the machine or system operates smoothly and meets the project’s deadlines. Once we resolve the issues, we can successfully complete the SAT.

Benefits of Site Acceptance Testing

One of the significant advantages of performing a Site Acceptance Test is the early detection and correction of errors or problems. Conducting thorough testing in the actual production environment can identify and address potential issues early. This proactive approach helps prevent costly delays and ensures that the equipment operates optimally from the start.

Increasing Customer Satisfaction

Site Acceptance Testing is crucial in increasing customer satisfaction by ensuring that the plant or machine meets the customer’s requirements. Manufacturers can demonstrate their commitment to delivering high-quality products that meet or exceed customer expectations by conducting the SAT. This commitment to quality and performance enhances the customer’s confidence in the equipment and the manufacturer, leading to greater satisfaction and trust.

Site Acceptance Test Checklist

To ensure a comprehensive and effective Site Acceptance Test, it is essential to have a well-prepared checklist. The checklist serves as a guide and ensures that all necessary aspects of the SAT are covered.

Key Elements to Include

A site acceptance test checklist typically includes the following key elements:

  1. Installation verification: Ensuring the machine or system is installed correctly according to the manufacturer’s recommendation and specification.
  2. Performance testing: Testing the machine’s performance under different operating conditions and verifying its compliance with specified requirements.
  3. Control system functionality: Verifying the functionality of the control systems and safety features.
  4. Environmental conditions: Ensuring that the machine operates effectively within the specified environmental conditions, such as temperature and humidity.
  5. Documentation and record-keeping: Documenting the test procedures, results, and any deviations or discrepancies observed during the SAT.

FAQ | Site Acceptance Test (SAT)

The SAT is performed at the buyer’s location after the equipment is installed, while the FAT is conducted at the manufacturer’s facility before the equipment is delivered. SAT focuses on verifying compliance with customer requirements in the actual production environment, while FAT ensures compliance with manufacturer specifications.

The primary purpose of FAT is to ensure that the machine or system performs according to the manufacturer’s specifications before it is transported to the customer’s site. It aims to detect any deviation or discrepancy from the specified requirements.

The SAT checklist typically includes elements such as installation verification, performance testing, control system functionality, environmental conditions, and documentation and record-keeping. It should be customized based on the specific requirements of the machine or system being tested.

Early detection and correction of errors or problems during the SAT prevent costly delays and ensure that the equipment operates optimally from the start. It helps maintain project timelines and enhances customer satisfaction.

Site Acceptance Testing demonstrates the manufacturer’s commitment to delivering high-quality products that meet or exceed customer expectations. By ensuring the equipment meets customer requirements, SAT enhances customer satisfaction and builds trust in the manufacturer’s capabilities.

Image: Adobe Stock – Copyright: © Nunkung – stock.adobe.com

Arne Reis

Founder

Arne Reis, Founder of flowdit

Process optimizer with 25 years of expertise, focused on operational excellence in quality, maintenance, EHS, and commissioning. Emphasizes innovative solutions and top-quality standards.

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