The Factory Acceptance Test (FAT) evaluates equipment during and after assembly to ensure compliance with design specifications, addressing any discrepancies before shipping. FAT is important for both manufacturers and buyers as it saves time and costs while ensuring equipment safety and functionality. The testing process includes verifying all important documentation and operational specifications, with varying levels of complexity based on system requirements.

1. FACTORY ACCEPTANCE TEST(
FAT)
MRS. POONAM SUNILAHER (M PHARM)
SANJIVANI COLLEGE OF PHARMACEUTICAL
EDUCATION AND RESEARCH (AUTONOMOUS),
KOPARGAON, AHMEDNAGAR-423603 (M.S.), INDIA
poonamprakashpatil4174@gmail.com

2. FAT
• THE FACTORY ACCEPTANCE TEST (FAT) IS A PROCESS THAT EVALUATES THE EQUIPMENT
DURING AND AFTER THE ASSEMBLY PROCESS BY VERIFYING THAT IT IS BUILT AND
OPERATING IN ACCORDANCE WITH DESIGN SPECIFICATIONS.
• FAT ENSURES THAT THE COMPONENTS AND CONTROLS ARE WORKING PROPERLY
ACCORDING TO THE FUNCTIONALITY OF THE EQUIPMENT ITSELF. AS THE NAME SUGGESTS,
THIS TESTING IS PERFORMED AT THE FACTORY.
FAT IS TYPICALLY CONDUCTED IN ORDER TO ASSESS ANY DISCREPANCIES AND NON-
CONFORMITIES, AS WELLAS DEVELOP A PROCESS FOR HOW THEY ARE TO BE HANDLED.
• DEVIATIONS OR ABNORMALITIES OBSERVED DURING TESTING ARE DOCUMENTED IN A
PROBLEM REPORT AND CORRECTED PRIOR TO SHIPMENT.
THE FAT IS A CUSTOMIZED TESTING PROCEDURE FOR DIFFERENT TYPES OF SYSTEMS AND
THE TESTS ARE EXECUTED BEFORE THE FINAL INSTALLATION AT THE PLANT.

3. • WHY IS FACTORY ACCEPTANCE TESTING REQUIRED?
• FATS ARE BENEFICIAL NOT JUST FOR THE BUYER AND END USERS BUT FOR THE MANUFACTURER
AS WELL.
• BOTH PARTIES CAN BE ASSURED THAT THE EQUIPMENT MEETS ALL THE CONTRACTUAL
SPECIFICATIONS AND ANY ISSUES CAN BE ADDRESSED BEFORE ARRIVING AT THE CUSTOMER’S
SITE. RECTIFYING ISSUES WHILE THE SYSTEM IS STILL IN THE POSSESSION OF THE
MANUFACTURER HELPS TO KEEP THE PROJECT ON TRACK AND WITHIN BUDGET.
• FATS ALMOST ALWAYS SAVE TIME AND MONEY OVER FIXING ISSUES IN THE FIELD.
OUR BROAD FACTORY ACCEPTANCE TEST IS THE MOST LUCRATIVE WAY TO ENSURE THAT YOUR
EQUIPMENT OR PLANT OPERATES CORRECTLY.
• AS A HIGHLY QUALIFIED, INDEPENDENT THIRD-PARTY, WE HAVE THE TRUSTED SKILLS AND
RESOURCES TO PERFORM STEADFAST TESTING.
• ALTERNATIVELY, WE CAN WITNESS APPROPRIATE TESTING ON YOUR BEHALF. IN MANY CASES IT
IS DIFFICULT TO PREDICT THE CORRECT OPERATION OF THE SAFETY INSTRUMENTED SYSTEM OR
CONSEQUENCES DUE TO FAILURES IN SOME PARTS OF THE SAFETY INSTRUMENTED SYSTEM.
• FOR THAT REASON THE FAT IS A VALUABLE CHECK OF THE SAFETY ISSUES.
THE SAFETY OF YOUR EMPLOYEES IS ALWAYS A TOP CONCERN SO THE QUALITY ASSURANCE
GIVES YOU THE PEACE OF MIND THAT ALL COMPONENTS OF YOUR SYSTEM ARE FUNCTIONING
THE WAY THEY SHOULD, AND WITHIN THE FULL RANGE OF OPERATING SPECIFICATIONS.

4. OBJECTIVE OF FAT
• ACHIEVE INDEPENDENT PROOF OF FUNCTIONALITY, QUALITY AND INTEGRITY WITH OUR
COMPREHENSIVE CHECKING PROCESS
• VERIFY ALL IMPORTANT DOCUMENTS, SUCH AS MANUALS, INSTRUCTIONS, PLANS,
DRAWINGS, PIPING AND INSTRUMENTATION DIAGRAMS (P&IDS)
• ENSURE THAT YOUR EQUIPMENT OR PLANT PERFORMS AS EXPECTED UNDER THE
TESTABLE RANGE OF LIKELY CONDITIONS, INCLUDING MISHANDLING AND ERROR

5. PROCESS OF FAT
• THE MAIN OBJECTIVE OF THE FAT IS TO TEST THE SAFETY INSTRUMENTED SYSTEM (LOGIC
SOLVER AND ASSOCIATED SOFTWARE TOGETHER).
• THE TESTS ARE NORMALLY EXECUTED DURING THE FINAL PART OF THE DESIGN AND
ENGINEERING PHASE BEFORE THE FINAL INSTALLATION AT THE PLANT.
• THE FAT IS A CUSTOMIZED PROCEDURE OF CHECKING THE SAFETY INSTRUMENTED SYSTEM AND
THE SAFETY INSTRUMENTED FUNCTIONS ACCORDING TO THE SAFETY REQUIREMENTS
SPECIFICATION.
• THE FAT INCLUDES APPROPRIATE GENERAL TESTING PROCEDURES FOR VERIFICATION OF THE
CORRECT OPERATION OF THE SAFETY INSTRUMENTED SYSTEM.
• SINCE THE TESTING ACTIVITIES ARE GENERAL METHODS THE FAT IS APPLICABLE TO
PROGRAMMABLE OR NON-PROGRAMMABLE SAFETY INSTRUMENTED SYSTEMS.
• THE MOST IMPORTANT PART OF THE FAT ADDRESSES SPECIFICATION OF THE TEST CASES I.E.
CLEAR DESCRIPTION OF THE TEST CASES, WELL-STRUCTURED TEST PROCEDURES AND RELEVANT
TEST CASES.

6. • IT’S IMPORTANT TO NOTE HERE THAT THERE ARE VARYING LEVELS OF AN FAT. THEY CAN BE
PERFORMED AT A VERY BASIC LEVEL, SUCH AS SETTING UP THE MAIN PIECES OF THE SYSTEM
WITH TEMPORARY WIRING AND MAKING SURE EVERYTHING MOVES AS IT IS SUPPOSED TO, OR
A MORE COMPLETE FAT CAN BE CONDUCTED WHERE THE MANUFACTURER PHYSICALLY
BUILDS THE WHOLE SYSTEM IN THEIR SHOP TO TEST IT FULLY.
• IN THE LATTER EXAMPLE, THE SYSTEM IS THEN TAKEN APART, MOVED TO THE CUSTOMER’S
SITE, AND PUT BACK TOGETHER AGAIN.
• THE FAT IS NORMALLY PERFORMED AT THE MANUFACTURER WORK SHOP.
• THE MANUFACTURER CHECKS THAT THE SAFETY INSTRUMENTED SYSTEM WORKS AS
INTENDED AND ACCORDING TO THE REQUIREMENTS STATED IN THE SAFETY SYSTEM WORKS
AS INTENDED AND ACCORDING TO THE REQUIREMENTS THE SAFETY REQUIREMENTS
SPECIFICATION

7. • DURING THE FAT THE MANUFACTURER CHECKS:
• THE USED EQUIPMENT ARE MENDING TO THE SPECIFICATION EG, COMPATIBLE HW AND SW
VERSIONS
• THE USED EQUIPMENT ARE INSTALLED ACCORDING TO MANUFACTURER’S SPECIFICATION
• THE INPUT AND THE OUTPUTS ARE CONNECTED ACCORDING TO THE DRAWINGS
• THE CALIBRATION OF THE EQUIPMENT ARE CORRECT
• THE TRIP POINTS OPERATE ACCORDING TO THE REQUIREMENTS IN THE SRS.
• THE ASSOCIATED SOFTWARE OPERATE ACCORDING TO THE REQUIREMENTS IN THE SRS THE
OUTPUTS AND THEIR ACTIONS BEHAVE ACCORDING TO THE SRS
• THE RESET FUNCTIONS OPERATE ACCORDING TO THE SRS
• THE ALARMS OPERATE ACCORDING TO THE SRS
• THE OPERATOR FUNCTIONS OPERATE ACCORDING TO THE SRS
• THE BYPASS FUNCTIONS OPERATE ACCORDING TO THE SRS
• THE MANUAL SHUTDOWN FUNCTIONS OPERATE ACCORDING TO THE SRS
• THE DIAGNOSTIC ALARM FUNCTIONS OPERATE ACCORDING TO THE SRS

8. •THANK YOU