TXN-1502D Digital Precision Variable Adjustable Switching Power Supply 15V 2A

hi some of my friends they're asking how to use the electronics laboratory variable power supply and one of them said he got one like mine he is interested in how to protect it that's a good question guys so let's talk a little bit about it but first let's see on the next screen the difference between the basic units we can get a like this on the market the one that we have here in the left side is a power supply alike the first digits we make reference about the voltage this here says a 30 and a 5 and a D it says from 0 to 30 volts 5 amperes and instead digital panel model mine is the 15 volts 0 to 15 and to 1% digital panel model model but the difference it's not so important in the voltage and in the amperes what I wanted to tell you is this model has two knobs for the voltage adjustment the course and the fine and also has the same course I'm fine adjustments two knobs for the curre