Consumed electric energy, during one measuring period, is saved into data memory and measurement starts again. It is possible to set different modes for the regulator- after measuring period ends regulator can connect again all stages, or it will continue in regulation step by step, and according to the situation it will connect progressively particular stages. If the pulse for the measuring period is not available from the main meter, it is possible to activate internal generator of pulses in the regulator itself. Afterwards it is necessary to tune real time of regulator clock with time of switching clock of main energy meter and keep regular control. There is also possibility to use one regulator input for tariff pulse, which is at some tariff rates needed for differentiation between technical and regulation maximum. If there is no possibility to connect tariff, then it is possible to use for its identification internal timer program, which is possible to be programmed in regulator. At this feature, it can happen that in the case of significant time difference between main energy meter and regulator (bigger that one period) regulator will not work correctly. This problem can never happen if the time synchronization is done by pulses. Other parameters monitored by regulator HM2006 are saved to the memory and it is possible to use them for visualization of load behaviour by PC software.