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Surprisingly accurate, the output voltage changes by 0.01 tracks as intended. Although I haven't examined the accuracy yet, I won't be shocked if the current also tracks down to the third decimal place. However, I only rated the user interface three stars due to a few problems I encountered. By turning the voltage knob, you can choose which digit to adjust the voltage (or current). The digit that is picked is flashing so you can alter it as each press revolves among the other digits. However, because of its brief duration, you will need to press it once more if you didn't get it properly. The timeout appears to be between 2.5 and 3.0 seconds, but since the voltage output is altered right away, I believe it should be closer to 5 or more seconds. Every time you turn the knob, it beeps, and I wish I could turn that off without having to open the casing and modify it myself. It would also be great if you could reverse the way the rotation rotates when choosing a digit; currently, it always goes to the right and wraps around at the last digit. If you'd like to

The power supply arrived in excellent condition within a few days. Because of the transformer, it is heavy, just how any decent linear supply should be. It delivers clean power as promised and produces a lot less noise than a voltage/current switching supply of a similar kind. Both the display and the enclosure are well-designed and practical. I was expecting the multifunction controls to be difficult to master because of some of the reviews, but within ten or so minutes, they all made sense and were simple to use. You can enter a voltage or current and then obtain the least significant digit you wish to use for blinking, even if the instructions do not specifically state this. After that, if you start adjusting the control right away, it will smoothly increase or decrease the voltage or current while increasing or decreasing the higher order digits as you reach 9 or decreasing them as you pass 0. As a result, you do not necessarily need to set each digit as they specify. Additionally, it enables you to look for a voltage or current that accomplishes your goals. Every single function

I attached a voltmeter to the supply. To two decimal places, the voltage I put on the supply matched exactly what I observed on the voltmeter! Fantastic. The setup of the constant current mode has been questioned by some. After you deactivate OCP mode, it is automated. You may demonstrate how it works with a straightforward experiment. A 40 ohm rheostat worked well for me as a power potentiometer, but that's all you need. Before connecting the rheostat to the power supply, set it to 40 ohms. By holding down the voltage knob on the supply for three seconds and then rotating it to turn off OCP, you can disable the power supply's OCP mode. Decide on the desired current now. I went with 0.2 amps. Set a maximum permitted voltage as well. I went with 3.0 volts. The supply will start out in constant voltage mode, which means that there won't be a load, the voltage will be 3.0 volts, the CV LED will be on, and the actual amperage will be zero. Attach the rheostat now. Ohm's law states that the amperage will change to 0.075. Due to the inability to put 3.0 volts into 40 ohms, the supply will remain in CV mode.