The power meter HM 240.02 is part of a series of units that enable experiments to be performed on flow processes with the aid of a computer. It is connected between a consumer (HM 240 or HM 241) and the mains supply. Because the output is determined by a real-time multiplication of current and voltage, the measured result is unrelated to the curve shape and provides accurate measured results, even in the case of phase control.
The measured value is digitally displayed and is transmitted to HM 240 or HM 241.