SRA Soldering Products offers a variety of products beyond soldering, including their KA3305D test bench power supply. We’ve received questions on whether these devices ship calibrated and come with certificates saying so. Is this the case?
The answer is that it doesn’t really matter - like most test equipment, these power supplies are intended to be regularly recalibrated by the end user at their location and so the supplier does not ship them with precalibration certificates. SRA offers an instructional document on how to do this calibration, here: How to Calibrate Korad KA3305P/D with Electronic Load; the electronic load used for the calibration, KEL103, can be found from DigiKey here: KEL103.