Atec Narda-EHP-50D - Manual (Page 8)

EHP-50D 04-11 8 / 12 Subject to change without notice
TECHNICAL SPECIFICATIONS
EHP-50D
FUNCTIONAL SPECIFICATIONS (1) Electric Field Magnetic Field
Frequency Range 5 Hz ÷ 100 kHz
Measurement Ranges (2)
5 mV/m ÷ 1 kV/m
500 mV/m ÷ 100 kV/m
(total measurement range: 146 dB)
0.3 nT ÷ 100 µΤ
30 nT ÷ 10 mT
(total measurement range: 150 dB)
Overload 200 kV/m 20 mT
Dynamic range 106 dB 110 dB
Resolution (3)
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
Displayed Average Noise Level (4)
Isotropic result
Single axis 5 mV/m
3 mV/m 0.3 nT
0.2 nT
Flatness (@ 100V/m and 2µΤ)
(5 Hz ÷ 40 Hz)
(40 Hz ÷ 100 kHz)
0.8 dB
0.35 dB
0.8 dB
0.35 dB
Typical 3D anisotropy (5) 0.54 dB 0.12 dB
Linearity (6) 0.2 dB (1 V/m ÷ 1 kV/m) 0.2 dB ( 200 nT ÷ 10 mT)
SPAN
100 Hz, 200 Hz, 500 Hz, 1 kHz, 2 kHz, 10 kHz, 100 kHz
(500 Hz to 100 kHz in Stand Alone mode)
Start frequency 1.2 % of the SPAN
Stop frequency Equal to the SPAN
Rejection to E fields --- > 20 dB
Rejection to H fields > 20 dB ---
Spectrum analysis method FFT
Acquisition method Simultaneous three-axis acquisition
Internal data logger 1 measurement every 30 or 60 seconds
Internal memory (7) Up to 24 hours regardeless of the logging rate
(1) Unless otherwise indicated, specifications are referred to an ambient operating temperature of 23°C and relative humidity of 50%
(2) For each individual axis. Ranges to be selected manually
(3) For the lower measurement range
(4) DANL is frequency and SPAN dependent. The specified best performance is referred to f ≥ 50Hz and SPAN ≤ 1kHz
(5) Typical value @ 50Hz, see application note "BG_0509_ELF_measurements_uncertainty” for details
(6) Referred to 100 V/m and 1 µT @ 50 Hz
(7) Measurement results acquired in stand alone mode
can be transferred to PC only