WPC’s 5-Step Test Procedure
Step 1 – Cleaning and Inspection
We examine parts for damage, broken components, evidence of corrosion, and revision (issue number). Items with damage, corrosion, or don’t meet minimum revision requirements are scrapped. Items in good condition which meet minimum revision requirements proceed to the next step. WPC replaces electrolytic capacitors on power supplies and PWA where necessary. We employ anti-static handling procedures during all phases of processing a part.
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Step 2 – Power Up and Self-Test
Parts are installed in the appropriate test chassis and powered up. Some components or units perform a self-test. If a part fails its initial test it is scrapped. WPC replaces aged electrolytic capacitors on powers supplies and PWAs where necessary, install new relays, and power reset buttons as needed. UCN power supplies are refurbished with new fans and new electrolytic capacitors.
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Step 3 – System Test
During the system test we subject the part to a thorough test of its functionality, specific to the part. This may involve calibration, verifying I/O channels, verifying output voltages and ripple specifications, running HVTS or other diagnostic software, and otherwise exercising the part over its full range of operating capabilities. Items which pass this phase proceed to the burn-in phase of testing.
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Step 4 – 48-Hour Burn-In
Items which pass the initial system test operate in the test chassis for a minimum of 48 hours prior to the final inspection and functionality verification.
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Step 5 – Final Test and Certification
After the minimum 48-hour burn-in phase, we repeat the complete test of the item’s functionality as described in Step 3. If the part passes all phases of the final test, we issue the test certificate for the part and prepare it for shipment to the customer. We carefully package each item to prevent handling damage from static electricity and physical damage during transportation.
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