??? 06/23/04 16:01 Read: times |
#73032 - RE: Current & Voltage Monitor with RS232 Responding to: ???'s previous message |
Charles: The device uses a standard amp probe and voltmeter
Steve:<This circuit is NOT mains isolated. Charles intends these to be protective resistors I suspect/i> The "standard amp probe" is isolated and adding a small transformer to isolate the voltage would make everything safe to touch and not add much cost. It would be interesting to see Charles algorithm for current and voltage out of phase Erik |