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  • Drok
    Keymaster
    June 19, 2019 at 10:01 am
    Post count: 2971
    in reply to: Brushless Motor Controller, DROK DC 6.5-50V Three-phrase Sensorless Motor Contro #36042
    This reply has been marked as private.
    Drok
    Keymaster
    June 14, 2019 at 9:48 am
    Post count: 2971
    in reply to: Monitoring 4 alternators #36025

    Hello Jon Hacking,
    Do you mean you need a dc current& voltage meter with shunt? How large is the measuring voltage/current?
    So far we don’t have AC meter can work for square wave circuit.
    Best regards.

    Drok
    Keymaster
    June 13, 2019 at 8:49 am
    Post count: 2971
    in reply to: Motor Speed controller external PWM control 2001712013 #36020

    Hello Don Joseph Kleinschnitz，

    We have received your question in mailbox and reply to it. Please kindly check if you get our response.

    Best regards.

    Drok
    Keymaster
    June 13, 2019 at 8:46 am
    Post count: 2971
    in reply to: 75W NC Charging module/Adjustable Voltage Regulator DC 6~32V to 1.25~32V 5A Buck #36019

    Hello

    We are not srue what wrong it is. The images attached on prior post can’t be opened.

    And so far we don’t find your email.  We will try to contact you directly. Please check if you receive our email.

    Best regards.

    Drok
    Keymaster
    June 12, 2019 at 10:01 am
    Post count: 2971
    in reply to: wirng diagram? #36012

    Hello Charles Ronk,

    As per your information, we find out #300007, please check if it is correct. https://www.amazon.com/dp/B00IZTMDN0/ref=as_li_tl?tag=proeng-20

    Here is wiring diagram. Any more questions, please kindly contact us.

    Drok
    Keymaster
    June 11, 2019 at 9:40 am
    Post count: 2971
    in reply to: wirng diagram? #36006

    Hello Wayne p Strattman,

    We have many kinds of meter. Is it convenient for you to show us the product link or your order ID?

    We will find solution for you once confirm which item it is.

    Best regards.

    Drok
    Keymaster
    June 11, 2019 at 9:38 am
    Post count: 2971
    in reply to: Tester Color Screen Multifunction Transistor Checker for Inductors/Resistors/Cap #36005

    Hello Norman ,

    Are all of them inductance? Is it possible for you to show the problem by video? In that way, we can check it more carefully.

    You can share us video link or send it directly to Service@droking.com

    Best regards.

    Drok
    Keymaster
    June 11, 2019 at 9:30 am
    Post count: 2971
    in reply to: DC step up converter. #36004

    Hello Jerry gregory,

    Would you please kindly tell us which item it is? Is it this one? https://www.amazon.com/dp/B01L90B3RI/ref=as_li_tl?tag=proeng-20

    Did you only connect input red wire and black?  To check what problem it is, is it convenient for you to take some images to show the connnection?

    You can upload here or send it to Service@droking.com

    Wait for your reply.

    Best regards.

    Drok
    Keymaster
    June 11, 2019 at 9:22 am
    Post count: 2971
    in reply to: 75W NC Charging module/Adjustable Voltage Regulator DC 6~32V to 1.25~32V 5A Buck #36003

    Hello Norman ，

    To check it quickly, is it convenient for you to show us how it behave by vidoe or images. We are sorry the above images can’t be opened here.  Would you like to try it again or send to Service@droking.com directly?

    Best regards.

    Drok
    Keymaster
    June 10, 2019 at 8:06 am
    Post count: 2971
    in reply to: Sparking When Measuring Current #35991

    Hello prithvi,

    Thanks for writing in.

    Is it this item? https://www.amazon.com/dp/B0789QVKKF/ref=as_li_tl?tag=proeng-20

    When you short output terminals with multimeter probe,  there is short circuit current. So it is normal that it  sparks.

    And voltage drop is also no problem. Please kindly notice you can’t adjust voltge in that case.

    For any more questions, please kindly contact us.

    Best regards.

     

    Drok
    Keymaster
    June 9, 2019 at 10:04 am
    Post count: 2971
    in reply to: Sku 200330 #35988

    Hello Steve White，

    Thanks for writing in.

    Do you mean you are not sure how to connect it? Below is a wiring for your reference.

    If you mean how to fix meter somewhere. There are no specifc installation method. For different user, method is also different. Someone may put it inot case. You can choose one base on actual situation.

    Best regards.

    y

    Drok
    Keymaster
    June 9, 2019 at 9:59 am
    Post count: 2971
    in reply to: DROK® Digital-Multimeter DC 6.5-100V 100A (100A / 75mV Shunt extern) – #35987

    Hello Mark,

    Thanks for writing in.

    We just make insturction for it, please kindly find more details here. 200141

    If the reading is not accurate, you may try below calibration:
    1. Connecting power supply (20V/10A), shunt and load.
    2. Connecting the two calibrating spots (Open the back cover, then you will find two holes which
    marked by “W” on the edge of board)
    3. Turn on the power supply.
    4. When the screen display changed from “CAL—“ into” —PASS”, that means the calibration is
    successful.

    Best regards.

    Drok
    Keymaster
    June 5, 2019 at 9:15 am
    Post count: 2971
    in reply to: DC Adjustable Constant Voltage Power Module SKU 200326 dead on arrival #35974

    Hello Tim,

    Thanks for sharing your expereinc here.

    For any more questions, please feel free to contact us.

    Best regards.

    Drok
    Keymaster
    June 5, 2019 at 9:08 am
    Post count: 2971
    in reply to: DROK® Digital-Multimeter DC 6.5-100V 100A (100A / 75mV Shunt extern) – #35973

    Hello Thomas Poulin,

    Thanks for writing in.

    Do you mean meter drawing more current from motor on an uphill grade ? The meter is not a load, it should not draw current. We think it should be that motor draws more current from battery, is it right?

    Could you please tell us the max load current? You mention voltage spikes, how large it is?

    And  does the negative of battery goes through the shunt then connected to meter negative?

    Best regards.

    Drok
    Keymaster
    June 4, 2019 at 9:59 am
    Post count: 2971
    in reply to: 75W NC Charging module/Adjustable Voltage Regulator DC 6~32V to 1.25~32V 5A Buck #35967

    Hello Norman Blomenkamp,

    We are sorry we can’t open pictures. It may be caused by network limitation.

    According to your description, actually  it  can  read current, is it right? you boosted the current to 39+

    Milliamps current may be too low. It is hard for converter read it accurately. Could you please try to  increasde to over 1A?

    And did you calibrating no-load current with load or not?

    Best regards.

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Viewing 15 posts - 1,066 through 1,080 (of 2,965 total)
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