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Panel Current Meter - 0 to 9.99A

SKU: ZO-1089
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Panel Current Meter - 0 to 9.99A

Are you looking for a very easy to use Panel Current Meter? Well my friends, the product shown here is very handy. The requirement needed in order to run is a DC voltage; also, to be able to measure the current draw, the 2 thick wires are used. Note that the shunt is easily hooked up since it’s placed on-board.


Note that it’s preferable to know and precisely understand how to wire it together since it can get confusing and tricky when dealing with current sensors instead of volt meters. But don’t worry! Read the instructions provided here in order to make it very clear to you.


When talking about a current meter, one should notice that there are 2 sets of wire; the thin one which consists of red and black, and the thick one which consists of red/white and black. Now what is this thin wire set used for? Basically, it’s very crucial for the meter itself and powering this meter depends on the thin wire set; also, it has to be 4.5-30VDC. (Note that the wires have a reverse-polar protection).


What about the thick set of wires? What is it used for? Well, it’s used for sensing the in-line current, and what’s very interesting is the fact that the black sensing wire is actually tied up internally with the black power wire, that’s why the choice is yours on how you want to use the meter, which might require needing a separate power circuit.


A very important piece of information is to be careful not to have any electrical connection between the powering and sensing current when you want to have the easiest and safest way of using the meter. So for example, connect something like a 9V battery to the thin power wires and you can put the current sensor in anywhere you want. Just remember that as long as there is no electrical connection, everything will turn out right.


Also, you could do something else, but first, you have to make sure that you’re low side sensing, next, have one circuit power the meter while it is sensing the same circuit. Why is that? Basically, because there is a connection between the ground power wire and the black current sense wire.


In addition to that, you'll need to arrange your circuit so that the ammeter sits 'right below' the "ground" of whatever you are sensing, the reason behind that is to not accidentally short your power supply. Check out the images provided for more information.


Note that there’s microcontroller in the display, it will read the current through the shunt resistance, make sure to compare it to a stable reference and then display the current in Amps on a 3-digit 0.56" tall 7-segment display.
It’s considered very suitable for nearly any electronic project since it works from 4.5V up to 30V and is reverse-polarity protected. The meter draws about 20mA to power the microcontroller as well as the display. This LED displays a beautiful contrast red color, yet it’s very clear to read. Note that all you need to do in order to mount to your enclosure is simply to cut a 45.5mm × 26.5mm rectangle and snap it in, that’s it!

  • Technical Details

    Dimensions:

    • Dimensions: 48x29x21mm
    • Digit size: 0.56" high, red LEDs
    • Refresh rate: about 2 Hz

    Power specifications:

    • 4.5V to 30V DC power
    • 0.01-9.99 Amp DC current sensing
    • 14cm long wires, 26 AWG for power wires, 20 AWG for current wires
    • 0.01 ohm shunt
    • 15-25mA draw
    • Accuracy is about 4%, better at currents over 2A
    • Red LED display
    • Reverse polarity protected
    • The mini trim potentiometer on the back is for calibration of the current measurement, you shouldn't have to adjust it unless the measurements are off and you have calibration equipment
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