Hi
I have to convert an existing circuit to run a more modern gauge due to obsolete parts.
I have a 28.8volt power supply a variable resistor 10-180ohms which measures oil pressure, of which at 10 ohms i wish to output 4ma and at 180 ohms i wish to output 20ma to drive a gauge which has 106 ohms across the terminals.
My knowledge is basic and would be grateful for help
Jules28
I have to convert an existing circuit to run a more modern gauge due to obsolete parts.
I have a 28.8volt power supply a variable resistor 10-180ohms which measures oil pressure, of which at 10 ohms i wish to output 4ma and at 180 ohms i wish to output 20ma to drive a gauge which has 106 ohms across the terminals.
My knowledge is basic and would be grateful for help
Jules28