I'm thinking about controlling a valve for fan coil coolant from a distance of approximately 10 meters.
The control signal is 0-10V, and the impedance of the regulator is stated to be 100k ohm.
Let's say I provide 5V in at one end of this wire. In a typical residential environment, what will be the observed voltage at the other end when loaded with 100k ohm?
Will I see ripple of 10s of mV, 100s? Even volts?
Let's say the cable goes parallell with 230V wires for many meters, and someone is opeating a household mixer nearby the cable, for example.