EHP-200A/EHP-200AC Frequency Selective Electromagnetic Radiation Analyzer
EHP200A/EHP-200ACThe frequency selective electromagnetic radiation analyzer is an excellent comprehensive electromagnetic field measurement system launched by Nada Company, which can accurately analyze long and medium waves in a wide range (3kHz-30MHz). It adopts a method based onFFT spectrum analysis for digital processing,For precise frequency selection measurement of complex test fields, whether composed of a single frequency or multiple frequencies, its design can accurately measure the isotropy of electric and magnetic fields. Its highly sensitive built-in detector can effectively ensure that even very small interference field strengths in the measurement environment can be accurately measured.
EHP200ARThe sensors and electronic measurement circuits 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 probe has excellent flatness characteristics and a linearity of 0.5dB, ensuring the reliability of measuring the field strength and total field strength (real-time and average values) of each of the three axes; The measurement results can be expressed in V/m, A/m, μT, mW/cm2, mG, W/m2, % Display based on the selected limit value. When the auxiliary input is turned on, the measurement results can also be displayed in mV or dBm.
EHP200ABuilt in spectrum analysis function, with a minimum resolution bandwidth of 1 kHz, allows for detailed analysis of electromagnetic field strength and frequency. Featuring a dynamic range of up to 80dB, the built-in rechargeable lithium battery can support up to 12 hours of operation time.
EHP200AConnected to a computer through optical fiber and controlled, it can display measurement results in real-time. The spectrum measurement of external signals can be used through auxiliary inputs.
characteristic:
l Frequency range: EHP200A :9kHz~30 MHz; EHP200AC :3kHz~30 MHz, Having high resolution for isotropic measurement
l Electric field strength range: 0.02~1000 V/m
l Range of magnetic field strength: EHP200A :0.6 mA/m~300 A/m; EHP200AC :6 mA/m~1000 A/m
l Capable of spectrum analysis
l Built-in rechargeable lithium battery
l Connect to computer via fiber optic cable
Application:
l Safety in the professional environment
According to relevant safety standards, the exposure value of workers cannot exceed the specific limit specified. Many types of industrial equipment that operate at high frequencies pose potential hazards to operators. Within the near-field range, the precise electric and magnetic fields measured by various devices should meet safety standards.
EHP200A/ EHP200ACEquipped with electric and magnetic field sensors in a small volume probe, excellent resolution enables precise measurements and spectral analysis within the range of 3 kHz to 30 MHz.
Its small volume probe and fiber optic connection work in a way that minimizes field interference to the greatest extent possible.
l radio and television
EHP200A/ EHP200ACEspecially suitable for precise measurement of long, medium, and short waves emitted by broadcasting and television transmission towers to ensure the safety of the area near large antennas, monitor the transmission power in the radiation direction, detect the function of the transmitting antenna, and confirm the boundary between near-field and far-field.
l Wave impedance
EHP200A/ EHP200ACAnother significant feature of is that computer software can calculate the wave impedance of a field by dividing the electric and magnetic fields in the total value. This method is particularly suitable for evaluating the nonlinear and dispersed near-field regions of large broadcasting and television antennas.
l Field strength generated by radio frequency identification and metal detectors
Metal detectors that work on radio frequency and detect various types of metals, as well as devices such as item identification and anti-theft systems, can generate field strength; Now it can be easily and accurately detected through EHP200A/EHP200AC.
EHP-TSApplication software:
EHP-TSThe software is an excellent PC analysis software developed by Nada, which allows users to directly control EHP-50 or EHP-200A/EHP200AC on their personal computers. The EHP-200A/EHP200AC comes standard with fiber optic connections, allowing you to quickly and easily connect the EHP-200A 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 limit values for electromagnetic radiation prevention. The EHP-200A/EHP200AC has all the limit values currently published by ICNIRP built-in. Of course, the EHP-TS software allows users to create and save customized limit values based on local regulations.
Of course, EHP-TS software is not only used to control EHP-200A/EHP200AC 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, leveraging its powerful features and portability of EHP-200A/EHP200AC to achieve accurate and comprehensive detection of signals within various measurement ranges on site.
Technical specifications:
EHP-200A |
|||||
RFspecifications |
electric field |
Magnetic field mode A |
Magnetic field mode B |
A U Xinput |
|
frequency |
9kHz~30 MHz |
9kHz~3 MHz |
300 kHz~30 MHz |
9kHz~30 MH |
|
measuring range @10 kHz RBW Pre amplifier on (NO) |
0,1~1000 V/m 0,02~200 V/m |
30 mA/m~300 A/m 6 mA/m~60 A/m |
3 mA/m~30 A/m 0.6 mA/m~6 A/m |
-80 ~0 dBm -94~-14 dBm |
|
dynamic range |
> 80 dB |
||||
resolution |
0.01 V/m |
1 mA/m |
0.1 mA/m |
0.01 dB |
|
Sensitivity @ 10kHz RBW (*) Pre amplifier turned on |
0.1V/m 0.02V/m |
30 mA/m 6 mA/m |
3 mA/m 0.6 mA/m |
-80 dBm -94 dBm |
|
Frequency response flatness |
0,5 dB 100kHz~27 MHz |
0,8 dB 150 kHz~3 MHz @ 166 mA/m |
0,8 dB 300 kHz~27 MHz @ 53 mA/m |
0,4 dB @ -20dBm |
|
anisotropism |
0.8 dB @1MHz |
||||
Linear @ 1MHz |
0,5 dB, FS ~ –60 dBFS |
||||
Display Range |
0full band |
||||
resolution bandwidth |
1 kHz– 3 kHz – 10 kHz – 30 kHz – 100 kHz – 300 kHz |
||||
Electric field suppression |
--- |
> 20 dB |
> 20 dB |
--- |
|
Magnetic field suppression |
> 20 dB |
--- |
--- |
--- |
|
calibration |
Built in E2PROM |
||||
Temperature drift |
0,02 dB/°C |
||||
General specifications: |
|||||
size |
96x 96 x 115mm |
||||
weight |
550can |
||||
Preamplifier |
Optional on/off, 14dB |
||||
unit |
V/m, A/m, uT, mW/cm2, W/m2 |
||||
built-in battery |
3,7 V-3,6 Ah rechargeable lithium-ion battery, charging time:<8 hours |
||||
working hours |
> 8hour |
||||
External power supply |
DC 10~15 V, current approximately 500 mA |
||||
Fiber Connections |
Up to 40 meters (USB-OC) Up to 80 meters (8053-OC) |
||||
Firmware Update |
Connected through fiber optic cables |
||||
self-inspection |
Post |
||||
operation temperature |
-10 ~ +50°C |
||||
storage temperature |
-20 ~ +70°C |
||||
