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Adjustable buck converter with built-in voltmeter 2017-03-25T12:50:23+00:00

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  • Kaisser Nobleza
    March 25, 2017 at 12:50 pm
    Post count: 0
    #14134 Reply |

    Good day DROK,

    I recently purchased this product of yours:
    https://www.amazon.ca/gp/product/B00JUFJ1GA/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

    It was great and working properly. However, could explain more clearly the behavior of the push button beside the voltmeter? I understand that it toggles the display to show Input or Output. But I kinda got confuse when I pressed it long. Two things happened:

    1st: Voltmeter’s display turns off.
    2nd: Voltmeter’s display keeps blinking and shows “0.0”. When I tried to press button once, the value increases to “0.1”

    What’s does the 2nd scenario for? and how long should I press the button to go to 1st and 2nd scenario?

    Thanks!

    Drok
    Keymaster
    March 28, 2017 at 10:03 am
    Post count: 2971
    #14190 Reply |

    Hello Kaisser Nobleza,
    Thank you for writing in.
    1.Press the button for 1 to 4 seconds,voltmeter would be shut off when releasing your hands
    2.When press button for more than 4 seconds,it comes to input voltage calibration function when releasing your hands.
    It will show “0.0”,which is the factory default value. The calibration range is between -0.5～0.5.
    After finishing input voltage calibration, you can push button for more than 2 seconds to calibrate output voltage error.
    Hope this can help with you.
    Best regards.

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