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  • Drok
    Keymaster
    June 16, 2017 at 9:17 am
    Post count: 2971
    in reply to: wiring diagram #18648

    Hello ANGELO BONETTI,
    Thank you for your writing in.
    To find out solution for you,would you please send us the link or ASIN number for confirmation?
    Best regards.

    Drok
    Keymaster
    June 16, 2017 at 9:13 am
    Post count: 2971
    in reply to: Screen flashing "DROK" #18647

    Hello Bob G,
    Thank you for your message.
    Would you please tell us what the particularly USB port is?
    When is the measuring voltage/current? Would you mind taking some picures or video to show the problem?
    Look forward to your reply.
    Best regards.

    Drok
    Keymaster
    June 16, 2017 at 8:35 am
    Post count: 2971
    in reply to: dc-dc buck converter 200220 voltage read out wrong #18646

    Hello adrian pharms,
    It seems your problem is not the same to the last one.
    The last problem is about calibration.
    Is it convenienct for you to take a short video to show how it is?
    And please tell us some parameters, for example, input voltage, output voltage/current, load and etc.
    You can send the video to service#droking dot com ( please replace # with @).
    We will try our best to find solution for you.
    Best regards.

    Drok
    Keymaster
    June 16, 2017 at 8:22 am
    Post count: 2971
    in reply to: D85 Digital Meter #18644

    Hello Chris S,
    Thanks for writing in.
    To check what the details, is it convenienct for you to take a testing video to show wiring and operation?
    You can send video to service#droking dot com ( please replace # with @)
    And please try to tell us more details about othere parameters.For example, power supply, load and etc.
    With your help, we can find solution quickly.
    Best regards.

    Drok
    Keymaster
    June 14, 2017 at 10:12 am
    Post count: 2971
    in reply to: Boost convertor input processing? #18616

    Hello Doug Whitfield,
    Thank you for writing in.
    It has input transient high voltage protection, output over current protection, chip overheating protection, but no reverse polarity protection and short circuit protection.
    In addition, is the input voltage DC 7v? Please make sure the input voltage is DC 5V-12V.
    Best regards.

    Drok
    Keymaster
    June 14, 2017 at 9:38 am
    Post count: 2971
    in reply to: Polartiy protection? DROK DC 3-21V Load Battery Tester, 35W 3A USB Monitor #18615

    Hello Mike,
    Thank you for writing in.
    Are you talking about the item(200186)? Its ASIN number is B01E6YSGPG.
    There are no polarity protection on the green input terminal.
    For more question, please feel free to contact us.
    Best regards.

    Drok
    Keymaster
    June 14, 2017 at 9:23 am
    Post count: 2971
    in reply to: drok Time Delay Module, DC 5-36V On-Off Delay Timer Switch #18614

    Hello norberto,
    Thanks for writing in.
    As there are many kinds of delay module, we can’t ensure the item you mention.
    Would you please tell us the ASIN number or send us the link?
    Best regards.

    Drok
    Keymaster
    June 14, 2017 at 1:33 am
    Post count: 2971
    in reply to: dc-dc buck converter 200220 voltage read out wrong #18607

    Hello,
    Thanks for writing in.
    Would you please let us know What is the error for #200220?
    Best regards.

    Drok
    Keymaster
    June 12, 2017 at 10:12 am
    Post count: 2971
    in reply to: DC 12V Time Delay Relay Module #18531

    Hello Dominique OMET,
    Thanks for writing in.
    We are sorry for inconvenience caused you.
    But we can’t ensrue exactly the item by a title. Would you please send us the link or tell us the ASIN?
    Look forward to your reply.
    Best regards.

    Drok
    Keymaster
    June 12, 2017 at 10:08 am
    Post count: 2971
    in reply to: DROK USB Interface 18-22V 12V to 5V DC Car Power Supply #18530

    Hello Andrew,
    Thank you for your purchase.
    Would you please tell us detail parameters on your operation?
    For example, input voltage, load, wiring and etc.
    It would be helpful if you can take some picture to show the whole circuit.
    You can send pictures to our service email:
    service#droking dot com ( please replace # with @)
    Look forward to your reply.
    Best regards.

    Drok
    Keymaster
    June 12, 2017 at 9:56 am
    Post count: 2971
    in reply to: DROKreg; Mini Bluetooth 30W amp – how to change BT name? #18526

    Hello Haiyan,
    Thank you for your reply.
    Actually，We are sorry the Blueooth name can’t be changed by customer.
    All of product have the same name. Only customized product can have a different name you want.
    Hope you can understand.
    Best regards.

    Drok
    Keymaster
    June 12, 2017 at 9:46 am
    Post count: 2971
    in reply to: 8-60V 15A Buck Boost Converter #18523

    Hello Chuck Beaudette，
    Thanks for your reply.
    To check the problem carefully, is it convenienct for you to take a video to show your wiring and operation? Then we can show it to our technician.
    You can upload it to Youtube and share the link to our service email:
    service#droking dot com ( please replace # with @)
    Look forward to your reply.
    Best regards.

    Drok
    Keymaster
    June 9, 2017 at 9:37 am
    Post count: 2971
    in reply to: DC 5-36V On-Off Delay Timer Switch #18334

    Hello Dvir Harmelech,
    Thanks for reply.
    Yes,it is the most detailed manual.
    Best regards.

    Drok
    Keymaster
    June 9, 2017 at 9:34 am
    Post count: 2971
    in reply to: 8-60V 15A Buck Boost Converter #18333

    Hello Chuck Beaudette,
    Thank you for writing in.
    We are sorry we can’t ensure the item you mention.
    Would you please tell us the ASIN number or send us the link?
    Look forward to your reply.
    Best regards.

    Drok
    Keymaster
    June 8, 2017 at 10:07 am
    Post count: 2971
    in reply to: DC 3-21V Load Battery Tester, 35W 3A Portable USB Monitor #18273

    Hello Alexl,
    Thanks for writing in.
    This item doesn’t have interface for data transmission, we are sorry there are no way to extract data so far.
    Hope you can understand. We will reflect your suggestion to our team and try to make some improvements.
    Best regards.

  • Author
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Viewing 15 posts - 1,756 through 1,770 (of 2,965 total)
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