Phase detector MX-404

Application: Establish concordance relations between two phases. Suitable for connection to test points of VIS or VDS indicators or their interfaces. It works on separable capacitive dividers. Does not work on Schneider Electric type V2 cells. Features: Designed for high and medium impedance voltage dividers (HR - MR) Upon connection, the comparison is indicated by: Sound signal if significant phase shift between the two phases, Absence of audible signal and lighting of the green diode if there is no phase difference between the phases.