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DROK® Digital-Multimeter DC 6.5-100V 100A (100A / 75mV Shunt extern) – 2018-10-11T14:49:45+00:00

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  • Bacinger
    October 11, 2018 at 2:49 pm
    Post count: 0
    #33675 Reply |

    DROK® Digital-Multimeter DC 6.5-100V 100A (100A / 75mV Shunt extern) Lcd Digital Voltmeter/Ammeter/Power Meter/Energy. Voltage indicator (Display) shows 48V instead of 32 V after a few months of proper function. That happens allredy on the first and the second device, which I have on Amazon. bought. I use the measurement for my photovoltaic system 0 – 35 V DC, 0 – 35 A. I also have two equivalent measuring devices from DROK for 230 VAC and they work well. What can I do to fix the problem?

    Drok
    Keymaster
    October 12, 2018 at 9:51 am
    Post count: 2971
    #33680 Reply |

    Hello Bacinger，

    Thanks for writing in. Please check if it is this item 200141

    If it is correct, please try to calibrate it.

    1. Turn off the power supply.
    2. Connecting power supply (20V/10A), shunt and load.
    3. Connecting the two calibrating spots (Open the back cover, you will find two holes which
    marked  “W” )
    4. Turn on the power supply.
    5. When the screen display changed from “CAL—“ into” —PASS”, that means the calibration is finished.

    Best regards.

    Donald J Steele
    January 16, 2019 at 7:42 pm
    Post count: 0
    #35383 Reply |

    Do you have better instructions that doesn’t tell you to connect positive and negative of your inverter to a shunt. Do u have photos of this hookup on a battery bank 12v 1,000 AH 6 kilowatt inverter with 40 amp rover mppt solar controller. Something that says plainly to connect digital reader to a positive connection only without a negative sign next to it? I need to know clearly does it connect to a positive or a negative. Do I leave my inverter tied to batter and both 250 amp anl fuse holders? Or do I plug in both positive 01 gauge cables to shunt? Or do I connect a smaller 4 or 10 awg cable to positive on battery and one to inverter? I need detailed instructions please or photo example of wiring that makes complete sense can one of your tech support guys draw me a diagram that says connect positive here negative here and not connect + /- to shunt . I need to know connect + or – just one of this options

    Drok
    Keymaster
    January 18, 2019 at 9:51 am
    Post count: 2971
    #35393 Reply |

    Hello Donald J Steele,

    Thank for writing in.

    Are you talking about 200141 item? Please kindly refer to the following wiring. It may help you to get more details about positive and negative. If there are any other questins, please kindly contact us.

    Best regards.

    Donald J Steele
    February 19, 2019 at 8:06 pm
    Post count: 0
    #35538 Reply |

    How would I hook this up to see how much power is coming from my wind turbine charge controller? I do not care about how much is going out I want to see actually what’s coming in. How do I know what end of the shunt is the incoming and out going flow?

    Donald J Steele
    February 19, 2019 at 9:14 pm
    Post count: 0
    #35541 Reply |

    Is there a way to calibrate or reset this meter to just tell me the incoming voltages what does the button do? What should setting be? 12v bank 12v wind controller dc

    Drok
    Keymaster
    February 20, 2019 at 9:40 am
    Post count: 2971
    #35547 Reply |

    Hello Donald J Steele,

    No matter the power come in or come out. Wiring is the same. The device that you want to monitor is that laod.

    200141 meter only measure one direction current.  please kindly refer to above wiring diagram.

    There is no way to show incoming voltages only. Please find more details about button from  this manual https://www.droking.com/cs/wp-content/uploads/2019/02/200141.pdf

    Best regards

    Donald J Steele
    February 21, 2019 at 5:25 am
    Post count: 0
    #35552 Reply |

    Ok if I want to wire my wind turbine charge controller from controller to battery all DC not 3 phase Ac side. How would I wire that? Not the same way right? Would I need to put the battery negative on the top of shunt and charger on bottom instead of battery negative on bottomed bolt of shunt?

    Donald J Steele
    February 21, 2019 at 5:31 am
    Post count: 0
    #35553 Reply |

    <p style=”text-align: left;”>Do you make a meter that can be wired into a 3 phase AC 3 cord positive direct or by a clamp transformer?</p>

    Drok
    Keymaster
    February 21, 2019 at 7:06 am
    Post count: 2971
    #35554 Reply |

    Hello Donald J Steele,

    We are sorry it is hard to confirm the bottom and top of shunt you mention.

    If you want to measure the power from  controller to battery, please hook it up as below. Battery is that load. The order of connection can’t be changed.

    So far we only have AC meter for 2 phase circuit.

    Best regards.

    Donald J Steele
    February 22, 2019 at 1:41 am
    Post count: 0
    #35560 Reply |

    I dont care what my battery says I want to see how much dc power is coming from a charge controller that is 1 positive red wire 1 negative black wire is putting into the battery. If this wont do that then its junk.

    Drok
    Keymaster
    February 22, 2019 at 7:43 am
    Post count: 2971
    #35563 Reply |

    Hello  Donald J Steele,

    About your questions”I want to see how much dc power is coming from a charge controller”

    Our resposne is the same. Base on  the above wiring diagram, it is available to check the power come out from charge controller.  We wonder if  you think the power drawed by battery is different from that come out from charge controller.

    Best regards.

    George
    April 18, 2019 at 5:15 am
    Post count: 0
    #35787 Reply |
    This reply has been marked as private.
    Drok
    Keymaster
    April 18, 2019 at 9:29 am
    Post count: 2971
    #35790 Reply |

    Hello George,

    Thanks for writing in.

    As per your description, we think it should be this item,200139

    Wiring is as shown belown,

    200139

    ————————————————————————————————————————

    This image is to show you that actually there is short connection between 1,2 port and 3, 4 port. So you just need to connect power supply directly to 2, 3 port.

     

    Best regards.

    Thomas Poulin
    June 1, 2019 at 9:55 pm
    Post count: 0
    #35952 Reply |

    Hello

    I have connected the 200141 meter to measure current and voltage from a 30-volt battery to a brushless DC motor controller on a bicycle. It works properly on level ground but on an uphill grade, drawing more current from the motor, the stops working and the screen is blank.  This has happened to two of the meters, and I suspect that voltage spikes from the hub motor are causing something inside to fail.

    Checking a failed one, Both the 2N60C and the 7133-1 regulator are all right but the rest of the circuit draws too much current and the output voltage from the 7133-1 is only about 1.15 volts.  There are two integrated circuits inside, one connected to the display and one connected to the input voltage from the shunt. I think the one connected to the shunt is the failed part; if I cut the trace from the 7133-1, VCC goes up to 3.24 volts as it should.

    Is it likely that a varistor (5KP200XA) across the meter input voltage will keep the meter from failing? I’d rather not ruin any more of them. Thank you for your help.

    Regards

    Tom Poulin

    Riverside, CA, USA

    tom.poulin@aerie-engineering.com

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