EHP-50F Frequency Selective Low Frequency Electromagnetic Field Intensity Analyzer

EHP-50FThe frequency selective low-frequency electromagnetic field intensity analyzer is an excellent comprehensive electromagnetic field measurement system developed by Nada Company for low-frequency electromagnetic waves. It can accurately select frequencies within a wide range (1Hz-400KHz), whether it is a complex test field composed of a single frequency or multiple frequencies. Its design can accurately measure the isotropy of electric and magnetic fields, and its highly sensitive built-in detector can effectively ensure that even very small interference field strengths in the measurement environment can be accurately measured.

EHP-50FThe measurement analysis module and electronic measurement circuit of the device are installed in an extremely durable probe housing, with a total external size of only 92 x 92 x 109 mm, providing excellent portability. The built-in high-sensitivity intelligent composite electric and magnetic field detection sensor can accurately detect the strength of single axis electric or magnetic fields, and of course, can also accurately measure the comprehensive field strength value (real-time value, average value) of 3 axes, and has excellent flatness and isotropy; The measurement results can be displayed in V/m, A/m, T,% (depending on the selected limit).

EHP-50FBuilt in FFT spectrum analysis function, with a minimum resolution bandwidth of 100Hz, allows for detailed analysis of electromagnetic field strength and frequency. Of course, the EHP-50F also supports broadband analysis mode, with a dynamic range of up to 150dB. The built-in rechargeable lithium battery can support up to 24 hours of continuous operation time.

EHP-50FSupports multiple working modes and can be monitored on-site by a single machine. The built-in data logger on the device can automatically record all measurement quantities according to a customized sampling time. At the same time, it can also be connected to the NBM-550 field strength meter or computer through dedicated optical fibers for convenient on-site or remote control, and real-time display of measurement results.

characteristic:

l One device can accurately measure both electromagnetic and magnetic fields simultaneously

l Frequency range: 1Hz~400kHz, with high resolution for isotropic measurement

l FFTMode for 3-axis omnidirectional frequency selection and wideband measurement, with spectrum analysis function

l Weighted peak measurement method in accordance with ICNIRP 2010, ICNIRP 1998, and EMF Directive 2013/35/EU guidelines

l Time domain measurement mode for accurately capturing complex signals

l Integrated fiber optic interface enables remote control and result display to avoid measurement distortion

l Built in rechargeable lithium battery and data recorder can achieve up to 24 hours of autonomous measurement and data storage

l Connect and control with computer or NBM-550 through optical fiber

Application:

l Low Frequency electromagnetics

Electromagnetic waves are a commonly used term to describe any artificially generated electric or magnetic field phenomenon. All electrical or electronic devices will emit electromagnetic fields around them during operation. Under certain conditions, high-intensity electromagnetic fields can pose potential hazards to the surrounding environment, especially around various transmission and transformation lines, railways, and some high current working equipment in daily life (such as large motors, generators, hot melt machines, or large-scale industrial production workshops with complex electrical equipment).

Among them, high-intensity low-frequency electromagnetic waves are prone to occur in the following places

l Accessories for power plants and substations

l Surrounding the transmission and transformation lines (high-voltage lines)

l Power equipment and railway power supply facilities

l Accessories for industrial equipment such as welding, tempering furnaces, and smelting

l Galvanizing equipment

l Medical facilities (such as MRT)

Fortunately, the operating frequencies of these devices are mostly in the low-frequency range, and the characteristic of these low-frequency electromagnetic fields is that their electromagnetic field strength rapidly decreases with distance. Even if the electric and magnetic field strength generated by these devices in close proximity is high, as long as a certain safe distance is maintained from them, these electromagnetic fields will quickly decrease to the normal level of the environment.

However, in certain environments, the presence of large machinery or electrical equipment with high radiation intensity in the attachments often exposes them to potentially harmful low-frequency electromagnetic fields (such as high-voltage wires, small transformers, etc. near many offices and homes). Due to research around the world confirming the potential risk of excessive exposure in high-intensity low-frequency electromagnetic fields, many countries have developed numerous safety standards to address this risk, including IEC, CENELEC, ICNIRP, and other international organizations that have also introduced relevant protective recommendations. Currently, governments and scientists around the world are continuously researching and developing more qualified protection standards to safeguard the health rights and interests of workers and citizens who frequently come into contact with low-frequency electromagnetic fields

EHP-TSApplication software:

EHP-TSThe software is an excellent PC analysis software developed by Nada, which allows users to directly control EHP-50D or EHP-200A on their personal computers. The EHP-50D comes standard with fiber optic connectivity, allowing you to quickly and easily connect it to a personal computer.

EHP-TSThe software provides a very user-friendly graphical operation interface, through which all device parameters can be set or changed. The software function interface is clearly divided, and the upper part can display and update continuous frequency spectra and detailed electric and magnetic field strength information in real time. The lower part is the control area, where you can find all settings.

At present, many countries have established many limits for electromagnetic radiation prevention. The EHP-50D has all the limits currently published by ICNIRP built-in. Of course, the EHP-TS software allows users to create and save customized limits based on local regulations.

Of course, the EHP-TS software is not only used to control the EHP-50D or display various data. The operator can save the measured data to the computer or output the data to other intelligent platforms in any situation. In short, EHP-TS software can provide operators with an ideal solution. With its powerful functions and the portability of EHP50D, it can achieve accurate and comprehensive detection of signals within various measurement ranges on site.

Technical specifications: