The NIM-511 and NIM-513 industrial field meters from Narda are handheld measuring systems consisting of a basic unit and a measuring probe equipped with electric and magnetic field sensors. They provide a solution for the task of checking the compliance of industrial plant with regulations and limit values for electromagnetic radiation.
The NIM-511 sensors cover a frequency range from 300 kHz to 100 MHz and are balanced during calibration at the 13.56 MHz ISM frequency often used in semiconductor manufacturing. The NIM-513 sensors cover the range of 10 to 42 MHz and are balanced during calibration at the 27.12 MHz ISM frequency - the frequency most often used for heat welding equipment and induction ovens.
The devices are compact and weight 600 g. Other features include: automatic measurement range selection, auto-zeroing, clear operating mode display and a digital result readout.