How do I wire a seperate power supply to work a digital ammeter with a shunt to my car.
The instructions say the supply has to be independent and should be 6v to 15v.
I have been warned that to simply wire it through the ignition will blow the ammeter.
Note: An independent DC power is needed to power the meter. A 50A 75mV shunt must be used for this panel meter. The power positive and cathode polarity can't be connected crossly, or it will be damaged.
What does the last sentence mean in simple language?
Its to be used on a HHO system. They give a lead with a 9v battery but its not practical to be replacing batteries all the time. Thanks in advance
The instructions say the supply has to be independent and should be 6v to 15v.
I have been warned that to simply wire it through the ignition will blow the ammeter.
Note: An independent DC power is needed to power the meter. A 50A 75mV shunt must be used for this panel meter. The power positive and cathode polarity can't be connected crossly, or it will be damaged.
What does the last sentence mean in simple language?
Its to be used on a HHO system. They give a lead with a 9v battery but its not practical to be replacing batteries all the time. Thanks in advance