Narda EHP-50D isotropic field analyser

The EHP-50D isotropic field analyser is an improved version of the measuring probe for low-frequency electromagnetic fields from 5 Hz to 100 kHz, expanding the measuring range of the Narda wideband NBM-550 measuring set from 5 Hz to 60 GHz.

The EHP-50D probe can be used for assessing industrial workplaces in accordance with current international standards and for measurements on industrial equipment. Simultaneous measurement of all three axes coupled with a dynamic range of up to 150 dB ensures that signals can be captured reliably over a wide range.

The built-in spectrum analysis feature means that measurements targeting individual events can be made while neighbouring frequencies are effectively blanked out. The optical interface enables measurements to be made remote from the NBM-550 in difficult-to-access locations. Equipped with a data logger and lithium-ion battery, the EHP-50D can also operate for up to 24 h in stand-alone mode and the results read out to a PC on completion.

Combined with the NBM-550 field measuring set, which is used to control the EHP-50D and display the results, there are three operating modes available for different measurement tasks: wideband measurement across a frequency range, measurement of only the highest level in a frequency band and spectrum measurement using a marker function. The range of applications for the NBM-550 now extends from the analysis of low-frequency fields in occupational situations up to high-frequency measurements on rooftop mobile phone antennas.