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  • Drok
    Keymaster
    March 7, 2019 at 9:28 am
    Post count: 2971
    in reply to: VAC9010H-ribbon cable #35656

    Hello Robert Preston ,

    Would you please kindly show us how did you wire it? Or please refer to this instruction , https://images-na.ssl-images-amazon.com/images/I/C1CRWo45BGS.pdf

    For most of items, we have uploaded pdf manual on Amazon product page. It is in “Technical Specification” part. In case paper is lost, everyone can download it at anytime.

    Any more question, please kindly let us know.

    Best regards.

    Drok
    Keymaster
    March 6, 2019 at 8:51 am
    Post count: 2971
    in reply to: SKU:200150 8-60V 15A Input Boost Converter #35637

    Hello Goofynascar,

    Thanks for writing in. Output off doesn’t mean votltage is zero,  it just stop drawing current.

    If output voltage has influence on load when output off, it is better to disconnect load.

    Best regards.

    Drok
    Keymaster
    March 6, 2019 at 8:33 am
    Post count: 2971
    in reply to: Better instructions #35636

    Hello Justin Whitlock,

    Thanks for your order. Could you please tell us which item it is?

    Best regards.

    Drok
    Keymaster
    March 5, 2019 at 9:57 am
    Post count: 2971
    in reply to: Adjustable CC CV Buck Converter Trouble #35627

    Hello Robert Welch,

    Thanks for writing in.

    Is it convenient for you to take some iamges to show  the display? Can it read input voltage?

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

    Best regards.

    Drok
    Keymaster
    March 4, 2019 at 9:59 am
    Post count: 2971
    in reply to: PN 300473 #35619

    Hello Matt,

    Thanks for writing in.

    Though we don’t have 300473 in website, if you need to order it, we can ask manufacture to do it. Any more questions, please kindly contact us by service email. service@droking.com

    Best regards

    Drok
    Keymaster
    March 4, 2019 at 9:29 am
    Post count: 2971
    in reply to: 35W Adjustable Constant Current DC Electronic Load #200392 Serial Problem #35618

    Hello Tim B,

    If possible, could you please show us how it is by video? In that way, we can let technicians check carefully.

    Best regards.

    Drok
    Keymaster
    March 1, 2019 at 10:03 am
    Post count: 2971
    in reply to: LED Digital Voltmeter DC 2.7-30V Waterproof Voltage Meter #35612

    Hello current user,

    Do you mean go to Amazon product page by the product link in our website? If it shows different item, that means this item is not available in Amazon now, so it is replaced by other item.

    Best regards.

    Drok
    Keymaster
    February 28, 2019 at 9:59 am
    Post count: 2971
    in reply to: Noise using 12 Volt Amplifier Board, DROK PAM8610 #35609

    Hello Jeff Gamelsky,

    Thanks for writing in.

    Is it this item? https://www.amazon.com/dp/B00C4LB57A/ref=as_li_tl?tag=proeng-20

    How is it if use independent power supply? And could you please disconnect audio signal to check if there is noise?

    Best regards.

    Drok
    Keymaster
    February 28, 2019 at 9:48 am
    Post count: 2971
    in reply to: Transistor Tester #35608

    Hello Fred Yawnick，

    Thanks for writing in.

    Would you please tell us which transistor tester it is?

    Best regards.

    Drok
    Keymaster
    February 28, 2019 at 9:46 am
    Post count: 2971
    in reply to: Component standard #35607

    Hello JD,

    Thanks for writing in.

    We are trying to apply for some certificate. But it may take some times to do that.

    Best regards.

    Drok
    Keymaster
    February 27, 2019 at 9:35 am
    Post count: 2971
    in reply to: 35W Adjustable Constant Current DC Electronic Load #200392 Serial Problem #35596

    Hello Tim B,

    Thanks for writing in.

    After sending start,  this response is Load supply voltage, load current, capacity value, discharge time.

    Just like your case: 01.71V,4.00A,0.032Ah,00:00.  Is the actual load current not 4 A?

    And do you make  sure the format for setting parameter  is correct? Could you please kindly take some images to show that?

    You can upload pictures here or send it to service email.(Service@droking.com)

    Best regards.

    Drok
    Keymaster
    February 27, 2019 at 9:03 am
    Post count: 2971
    in reply to: Drok YB28VTM-W #35595

    Hello Hector Losier,

    Thanks for writing in.

    We think it should be this item 200214. It can work for  DC 6-120V battery.

    Please kindly set battery specification base on  total battery voltage. For 36V battery, you can select “12v” on 2-b, then select “3” on 3-c.

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

    Best regards.

     

    Drok
    Keymaster
    February 27, 2019 at 8:20 am
    Post count: 2971
    in reply to: Droking digital dual display current VoltageTester DC 1-100v/50A Car battery mon #35594

    Hello Dave Coulam,

    Thanks for writing in.

    We are sorry we can’t confirm item by this title. Is it from Amazon.com? Could you please send us a product link or ASIN number?

    Best regards.

    Drok
    Keymaster
    February 25, 2019 at 6:22 am
    Post count: 2971
    in reply to: DROK 24V LEAD ACID BATTERY CAPACITY MONITOR – SKU #35581

    Hello LUIS RAMOS,

    As shown below, please kindly refer to the circled parts in picture.

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

    Best regards.

    Drok
    Keymaster
    February 24, 2019 at 8:53 am
    Post count: 2971
    in reply to: Product Recommendation #35573

    Hello Burzin,

    So you want to decrease voltage from 12v to 6.5v, and output current is around 0.5A. Is it right?

    Actually both of two items can meet that requirement. But  in case misunderstanding, we want to said current adjustment is used to  set max output current instead of regulating current directly.   Actual output current is mainly decided by load.

    So it doesn’t mean how much you set, the actual output is the same as preset value. For example, you set 1A output, load only need to draw 0.5A, actual output should be 0.5A. But it will be not  over 1A.

    Best regards.

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Viewing 15 posts - 1,156 through 1,170 (of 2,965 total)
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