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  • Drok
    Keymaster
    April 1, 2017 at 5:19 am
    Post count: 2971
    in reply to: Drok Micro DC speed control 12volt 40amp #14436

    Hello Chad Brubaker,
    Thank you for your writing in.
    We are sorry for any inconvenience caused you.
    To find out solution for you, could you please first send us the link of item you mention?
    And please tell us more details about your problem.
    For example, the power supply, the wiring and other parameters.
    How is it failing?
    Look forward to your reply.
    Best regards.

    Drok
    Keymaster
    April 1, 2017 at 5:11 am
    Post count: 2971
    in reply to: Drok DVB100 Digital Voltage Comparator #14435

    Hello Ben,
    Thank you for your reply.
    Here is an simple instruction for your reference.
    200231
    If you need more help, please feel free to contact us.
    Best regards.

    Drok
    Keymaster
    April 1, 2017 at 5:01 am
    Post count: 2971
    in reply to: Drock Thermometer with display error #14431

    Hello Claudio,
    Thank you for writing in.
    We are sorry for any inconvenience caused you.
    To find out solution for you, could you please tell us more detail bout your operation?
    For example, the power supply, the working environment, wiring and etc.
    If you can, we hope you can send us some pictures to show the wiring.
    You can send picture to service# droking dot com(please replace # wiht @)
    Please don’t worry, we will find solution for you at that time.
    Best regards.

    Drok
    Keymaster
    March 29, 2017 at 7:30 am
    Post count: 2971
    in reply to: 10w Class D amplifier distortion after a few minutes #14248

    Hello Richard Dickson,
    Thank you for writing.
    We are sorry for any inconvenience caused you.
    Could you plese send us the link of item firstly?
    To find out solution for you as soon as possible, could you please let us know more details about your operation?
    For example, the wiring, the power supply and etc.
    Please don’t worry, we will find solution for you at that time.
    Best regards.

    Drok
    Keymaster
    March 29, 2017 at 7:26 am
    Post count: 2971
    in reply to: ammeter reads incorrect #14247

    Hello Joe C Hise,
    Thank you for writing in.
    We are sorry to hear that.
    To find out solution for you quickly, could you plese send us some pictures or videos to show the wring?
    And please let us know more detail about other parameters. For example, the power supply, the load and etc.
    You can send pictures to our service email:
    service#droking dot com ( please replace # with @)
    Please don’t worry, we will find solution for you at that time.
    Best regards.

    Drok
    Keymaster
    March 28, 2017 at 10:03 am
    Post count: 2971
    in reply to: Adjustable buck converter with built-in voltmeter #14190

    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.

    Drok
    Keymaster
    March 28, 2017 at 9:42 am
    Post count: 2971
    in reply to: Drok DVB100 Digital Voltage Comparator #14188

    Hello Ben,
    Thank you for your writing in.
    We are sorry we can’t ensure which item you mention.
    Could you please send us the link of item?
    Sincrely beg for your forgiveness.
    Best regards.

    Drok
    Keymaster
    March 28, 2017 at 9:40 am
    Post count: 2971
    in reply to: DC Watt meter for photovoltaic #14186

    Hello Simone,
    Thank you for your reply.
    We are sorry it seems we don’t have such an meter.
    The measure range for most of our power meters can’t not meet your demand.
    Hope you can understand.
    As a small and growing company, we will keep moving to improve our products and service.
    Look forward to more cooperation in the future.
    Best regards.

    Drok
    Keymaster
    March 24, 2017 at 10:14 am
    Post count: 2971
    in reply to: DC Watt meter for photovoltaic #14082

    Hello Simone,
    Thank you for writing in.
    Would you please let us know more details about your requirement?
    For example, the measuring voltage , the current and etc.
    Look forward to your reply.
    Best regards.

    Drok
    Keymaster
    March 24, 2017 at 10:08 am
    Post count: 2971
    in reply to: DROK DC 12V Digital Timer Relay Board, Automotive 1500W Relay Module #14081

    Hello Awills,
    Thank you for writing in.
    We are sorry for inconvenience caused you.
    Is this item you mention?
    https://www.amazon.com/DROK-Digital-Automotive-Display-Support/dp/B01MZ8DIOM/ref=sr_1_1?ie=UTF8&qid=1490349271&sr=8-1&keywords=DROK+DC+12V+Digital+Timer+Relay+Board%2C+Automotive+1500W+Relay+Module

    If yes, here is an instruction for your reference.
    300455-300456
    For more questions, please feel free to contact us.
    Best regards.

    Drok
    Keymaster
    March 24, 2017 at 9:58 am
    Post count: 2971
    in reply to: LM2596 #14079

    Hello Marc,
    Thank you for writing in.
    We are glad that our item can work for you finally.
    If there are any problem about our item, you can just contact us at first.
    We will be here to assist you.
    Look forward to more cooperation in the future.
    Have a nice day.
    Best regards.

    Drok
    Keymaster
    March 24, 2017 at 9:44 am
    Post count: 2971
    in reply to: Data Sheet #14078

    Hello Benjamin,
    Thank you for your reply.
    The “D 1” component is IN4007.
    As we are not clear about the damaged condition, we are not sure if it can work again with a new replacement.
    If you need more helps, please feel free to contact us.
    Best regards.

    Drok
    Keymaster
    March 24, 2017 at 9:10 am
    Post count: 2971
    in reply to: DROK® Mini USB Current Voltage Charger Detector support QC 3 #14077

    Hello Morgan Tate,
    Thank you for yoru reply.
    When the measuring voltage is DC 9v-12v, this item(180043) can support QC 3.0.
    For more questions, please feel free to contact us.
    Best regards.

    Drok
    Keymaster
    March 23, 2017 at 10:08 am
    Post count: 2971
    in reply to: Data Sheet #14058

    Hello Benjamin,
    Thank you for writing in.
    We are sorry for what happen.
    However, we can’t ensure the item you mention.
    Would you please send us the link of item?
    We will try our best to find solution for you.
    Best regards.

    Drok
    Keymaster
    March 23, 2017 at 10:04 am
    Post count: 2971
    in reply to: DC Voltage Regulator Index #14057

    Hello Gabriele Rocco,
    Thank you for writing in.
    We are glad your problem has been solved.
    For more questions, please feel free to contact us.
    Have a nice day.
    Best regards

  • Author
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Viewing 15 posts - 1,906 through 1,920 (of 2,965 total)
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