Site Acceptance Testing (SAT)
Verifying Your Control Panel Performs in the Real Operating Environment
Site Acceptance Testing (SAT) is the final stage of the control panel delivery process, confirming that the installed system operates safely and performs as intended within its live production environment.
Following successful Factory Acceptance Testing (FAT), Site Acceptance Testing validates that the control panel has been correctly installed, integrated with site equipment and is ready for operational use.
At Stratos, we support customers throughout installation, commissioning and Site Acceptance Testing to help ensure every control panel is fully operational before handover.
What Is Site Acceptance Testing?
Site Acceptance Testing (SAT) is performed after the control panel has been delivered and installed on site.
Its purpose is to confirm that:
• The control panel has been installed correctly.
• All field wiring has been completed accurately.
• Equipment communicates correctly with connected systems.
• PLC and HMI functionality operates as specified.
• Safety systems function correctly.
• The complete system performs reliably under real operating conditions.
Unlike Factory Acceptance Testing, which is completed in a controlled manufacturing environment, SAT verifies performance within the customer's facility.
Why Site Acceptance Testing Matters
Completing a structured Site Acceptance Test provides confidence before production begins.
Benefits include:
• Verify correct installation.
• Confirm system functionality.
• Validate communication with field devices.
• Identify installation issues before production.
• Reduce operational risk.
• Support a smoother project handover.
• Improve confidence before live operation.
• Ensure customer requirements have been met.
SAT helps ensure that the complete automation system performs as expected in its intended environment.
Commissioning
Commissioning is the process of bringing the installed control system into safe and reliable operation.
Typical commissioning activities include:
• Power-up checks.
• Field device verification.
• PLC program validation.
• HMI configuration checks.
• I/O testing.
• Alarm verification.
• Safety circuit testing.
• Functional sequence testing.
Commissioning ensures every part of the control system works together before production begins.
Validation
Validation confirms that the completed automation system performs according to the agreed project specification.
Validation may include:
• Process operation.
• Control sequences.
• Interlocks.
• Safety functions.
• Communications.
• Alarm responses.
• Production requirements.
• Customer acceptance criteria.
Testing under real operating conditions provides confidence that the control system is ready for day-to-day operation.
Sign-Off
Following successful testing and validation, formal project sign-off confirms that the agreed acceptance criteria have been achieved.
Sign-off typically includes:
• Completion of Site Acceptance Testing.
• Resolution of identified issues.
• Customer approval.
• Final documentation.
• Test records.
• Commissioning reports.
• Handover documentation.
This marks the transition from project delivery to normal operational use.
Operator Training
Even the best-designed control panel delivers greater value when operators understand how to use it effectively.
Operator training may include:
• HMI navigation.
• Normal operating procedures.
• Alarm management.
• Fault identification.
• Safe shutdown procedures.
• Basic troubleshooting.
• System documentation.
• Maintenance guidance.
Providing practical training helps improve operator confidence, reduce downtime and support safe day-to-day operation.
Supporting a Successful Handover
Successful project delivery extends beyond installing a control panel.
By combining commissioning, Site Acceptance Testing, validation and operator training, organisations can reduce operational risk and ensure systems are ready for reliable production from day one.
A structured handover also provides confidence that documentation is complete, personnel are trained and the automation system is performing as expected.
Why Choose Stratos?
At Stratos, we support customers throughout every stage of control panel delivery, from design and manufacture through to installation, Site Acceptance Testing and commissioning.
Our engineers work closely with your team to validate system performance, complete thorough testing and provide the documentation and training needed for a smooth transition into operation.
Ensure a Smooth Start to Production
Successful commissioning is about more than switching on a control panel. Stratos provides Site Acceptance Testing, commissioning support and operator training to help ensure your automation system is fully validated, safely handed over and ready for reliable operation from day one.
