Solar Battery Monitor Voltmeter Ammeter Gauge DCM 120110C

hi thanks for joining me in this video in its normal state you will see two lines of information the top line will show you the voltage and the bottom one will show you either the amperage the battery percentage or the amp hours remaining another important indicator is the charging light at the moment is charging so I'm going to press the bottom key here which now has gone into the amp reading so currently I am charging the battery through the solar panel very very slight amount of current is going in and if I were to let's say turn on another light you'll see that suddenly the charging light goes off and it shows that I met you now drawing about half a lamp from the battery so that's that's the function of the charging light there tells you the difference from when you are using power as to when you are actually charging the battery press the bottom key again it goes into amp hours this indicates the amount of energy I have in my battery the number of air powers I still have in my battery that's it once again when it gives the percentage symbol it shows the percentage fullness of the batteries alright now my battery is almost full you can also use the top key to cycle between voltage and and wattage but that's I don't find that very useful but for some people they prefer instead of looking at amperage they prefer to look at it in terms of watts so at the moment I'm using about six and a half watts of energy but for most times and this is the when you press this button again the time indicator comes down and this indicates the length of time it's been running since the time you've done your let's bring it back to voltage so for most of us I think we'll be using it with the voltage showing on the top and the state of charge showing at the bottom when it's in the setting mode or debug mode it looks different you only see one line of display to get into the debug mode press and hold the set button so now you're in the debug mode to get out of the debug mode just press and hold again and this is back to normal mode again so there are four things we need to do when we've got this to set up you need to calibrate the voltage you need to calibrate the amperage reading you need to input the rated capacity of your battery these first three things are done through the setting window or the debug mode and the fourth thing to do would be to set the number of amp hours remaining in your battery and that's the only setting that's done in the normal mode so let's begin with voltage so press and hold the set button first thing you'll see is the voltage you're now able to calibrate the reading so you can increase or decrease this as you wish to what the actual battery voltage reading is to get the actual voltage you'd use a multimeter just use your home multimeter place it at the battery terminal and you you should match the two readings the function of this is to take into account the cabling the distance from the battery so if you wish to set this up let's say a distance from the battery that distance would cause a voltage drop and so that can be calibrated for through this way so now let's assume that you've set the voltage you're quite happy with it the next thing you want to do now is set the amperage reading the best thing to do is to do this at night or with the solar panels disconnected from your battery so you're not receiving any charge and turn off all power sources to your battery so in that way your battery is now not gaining any current not losing any current so the reading ought to be zero so use these two buttons until it says zero like that and you've now calibrated the amperage reading the third thing to do will be to input your battery's capacity now in our example we're gonna say the battery's capacity is a hundred and fifty amp hours so I'm gonna have to change this figure 143 to 150 so I'm gonna press this okay 150 alright now that I'm all done I'll press the set button again and we'll see this page and is asking us whether we want to save the settings so if we want it it says n at the moment which means no we want to change that to yes and press the set button to accept the changes so we've now calibrated the voltage the amperage as well as the battery's capacity the last thing we need to do now is tell the device how many M hours remain in our battery so let's see what I've got 150 amp hour capacity battery it's new and it's fully charged so that means I've got 150 amp hours in my battery now so what I'll do is I'll press the bottom key until it says M hours and they'll not keep my finger on this until it flashes and I'm going to change this figure to 150 now done now that I'm happy with that figure I'll press the set button and that disappears so now we're back in our normal mode we read the correct voltage and it's telling me there's 150 amp hours of energy still left in the battery I press this button it's telling me that the battery is 994% full because a little bit of current may have been used and if I press this button once again it shows the current draw of the battery so I hope that's helped you set up your display check my battery's voltage using a multimeter and the reading should be twelve point three nine not twelve point four one so I'm going to calibrate the device now and to do that I press and hold the set button until only one line of display appears the voltage and I'm gonna change this figure now by using the top and bottom keys to change that to twelve point three nine okay drop point three nine once I'm happy with that I'll press set at this point I can also adjust my amperage if I wanted to I could adjust the battery capacity at this stage if I wanted to and now I'm in the safe settings window I'll change the into a wife or yes to save and to save it I'll press the set button so now that I've calibrated it it gives me the correct voltage that's the beauty of this device you can calibrate it for your setup okay so this thing the device needs a shunt this thing here is called a shunt on the left side is connected to the battery the negative pole of the battery the negative tone or the battery and on this side you connect to the negatives of all your loads so one of this will be from my fuse box as well as the negatives from the two charging devices that you're likely to have let's just say the battery charger which runs off 24 volts and from your solar panels so this way you're keeping abreast of both the amount of power you're using as well as the amount of power that's coming into the system the two smaller connections here is where the device measures the voltage and amperage

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