EHP-50D
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ELECTRIC AND MAGNETIC FIELD ANALYZER EHP-50D C FIELD ANALYZER Selective and broadband low frequency field analysis State of the art technology with simultaneous three-axis acquisition Low frequency electric and magnetic field analysis up to 100 kHz Isotropic measurement with total dynamic range up to 150dB Small size and optical fiber connection for spot measurements Built-in FFT spectrum analysis Wideband mode Built-in Li-ion rechargeable battery with long operating life Interface to NBM-550 field meter and PC Stand-alone operating mode with internal data logger Subject to change without notice

LOW FREQUENCY ELECTROMAGNETIC FIELDS Electrosmog is a term commonly used to describe any phenomenon or problem associated with artificially generated electric or magnetic fields. A range of electric or electronic devices may cause an environmental risk and - under certain conditions - generate potentially hazardous electric or magnetic fields. However, special attention is focused on low frequency fields such as those generated by power transmission lines, railroads, and high current equipment in general (large electric motors, industrial-scale manufacturing plant, power generators, etc.)....

EHP-50D Electric and Magnetic Isotropic Field Analyzer The EHP-50D is not simply an upgrade of the EHP-50C, but represents a real leap in technology made possible by the availability of even more sophisticated components that can provide high level performance while keeping the physical dimensions and intrinsic noise level small. The EHP-50D gives users the choice of three measurement modes: Wideband, which measures the contribution of all the frequency components in the selected frequency span; Highest, which measures only the highest level found within the span; and Spectrum, which...

Safety Test Solutions The EHP-50D adopts the same extremely flexible operating concept found in preceding models, such as "Stand Alone" mode, remote control by PC via an optical connection, and remote E and H field sensor for portable field meter. The EHP-50D as well as its different operating modes therefore appears to be the same as the EHP-50C but it has a completely new "heart" beating within it to give the highest level of performance even in the most complex situations. The EHP-50D was designed to provide all the performance, capacity and functions needed, and is shown as the best...

NBM-550 DISPLAY OPERATION Handheld display unit for field measurements The EHP-50D can also be easily operated through the Broadband Field Meter NBM-550. In order not to influence the field to be measured, communication between the EHP-50D Analyzer and the NBM Unit is through a rugged optical fiber cable. The NBM-550 supports the following settings and measurement modes: Electric or magnetic field selection (1 kV/m; 100 kV/m; 100 µT;10 mT) Span selection (100 Hz to 100 kHz) Wideband or highest peak modes Spectrum mode Monitor mode (Actual; Max; Avg; Min) XYZ mode (wideband or highest peak)...

Different measurement modes as displayed by NBM-550 Ise arrow keys ID change Span ■# keys to change Span average values single axis marker frequency 1000 Z ICNIR.P 1938 general publi i keys to change Span NBM-TS APPLICATION SOFTWARE The NBM-TS application software, which is included with the Narda Broadband Field Meter NBM-550, provides functions for transferring the results that have been stored in the meter memory to a personal computer. It also includes data evaluation and measurement database management functions. All the numerical value and spectrum analysis results stored in the meter...

Safety Test Solutions EHP-TS REMOTE CONTROLLED OPERATION Displaying electric and magnetic field values in a spectrum analysis graph The EHP-TS control software allows the user to control Narda analyzers such as the EHP-50C/D and EHP-200/A from a PC. The optical cable coming from the analyzer (max. length: 40 m) is easily connected to the PC using the optical to USB converter (USB-OC) provided. If a longer distance is required, the optional 8053-OC optical to RS232 converter can be used for optical fiber A user-friendly graphical interface includes the commands for setting all the...

FUNCTIONAL SPECIFICATIONS Electric Field Magnetic Field Frequency Range 5 Hz ÷ 100 kHz 5 mV/m ÷ 1 kV/m 500 mV/m ÷ 100 kV/m (total measurement range: 146 dB) Overload Dynamic range Resolution 0.3 nT ÷ 100 µΤ 30 nT ÷ 10 mT (total measurement range: 150 dB) Measurement Ranges Displayed Average Noise Level Isotropic result Single axis Flatness (@ 100V/m and 2µΤ) (5 Hz ÷ 40 Hz) (40 Hz ÷ 100 kHz) (5) 1 mV/m with NBM-550 0.1 mV/m with EHP-TS software 1 mV/m in Stand Alone mode 0.1 nT with NBM-550 0.1 nT with EHP-TS software 1 nT in Stand Alone mode 100 Hz, 200 Hz, 500 Hz, 1 kHz, 2 kHz, 10 kHz, 100...

Electric Field Calibration Typical temperature deviation @ 55 Hz referred to 23°C (@ 50% of relative humidity when applicable) Typycal relative humidity deviation @ 55 Hz referred to 50% (@ 23 °C) -8x10 dB/°C between -20 and +23 °C -3 +13x10 dB/°C between 23 and 55 °C Internal battery Operating time >9 hours in standard mode 24 hours in stand alone mode Recharging time External supply Optical fiber connection Firmware updating Self test Operating temperature Operating relative humidity Charging temperature Storage temperature Tripod support Recommended calibration interval Subject to change...

NBM-550 DISPLAY Display type Display size White LEDs, selectable illumination time (OFF, 5s, 10s, 30s, 60s, PERMANENT) Refresh rate 200 ms for bar graph and graphics, 400 ms for numerical results Operating language Selectable: English, French, German, Italian, Spanish, Simp. Chinese, Russian, Turkish FUNCTIONS AND SETTINGS WITH EHP-50D Field selection Span selection Wideband or Highest peak (Wideband value not available in Mode Standard) Operating modes Spectrum; Standard; Monitor; XYZ Result Types Mode Spectrum; Standard: Actual; Max; Avg Mode Monitor: Actual; Max; Avg; Min Mode XYZ:...