Atec Narda-EFA300 - Manual (Page 5)

33 narda Safety Test Solutions an communications company USA • Germany • Italy
USA TEL: (1) 631 231-1700 • FAX: (1) 631 231-1711 • E-MAIL: [email protected] • www.narda-sts.us
Electric and Magnetic Field Measurement
magnetiC (b-) fielD
eleCtriC (e-) fielD
100 cm² Probe internal Probe 3 cm Probe
EXPOSURE STD MODE
Frequency Range (+0/-3 dB)
5 Hz to 32 kHz
Exposure Evaluation Compared to Standards Stored in Meter c
Measurement Range / Overload Limit 200% 200% 200% 200%
Noise Level, typical d
(for ICNIRP Occupational)
<0.4% <2% <1% <5%
Uncertainty, typical (percent of reading) b ±4% ±9% ±6% ±4%
SPECTRUM FFT / HARMONICS MODE (Optional)
Frequency Range
5 Hz to 2 kHz
40 Hz to 32 kHz
Fundamental Range
(HARMONICS only)
10 Hz to 400 Hz
10 Hz to 10 kHz (Option, FFT 5 Hz-32 kHz)
Resolution
by Marker:
2 kHz Range 0.01 Hz
32 kHz Range 0.1 Hz
Frequency
Scale,
selectable:
2 kHz Range Full-Scale Logarithmic or 100 Hz Wide Linear Span
32 kHz Range Full-Scale Logarithmic or 1000 Hz Wide Linear Span
Detection, selectable
RMS, RMS Average, Peak Value or Vector Peak Value
(at each single frequency, proper phase)
Measurement Range See FIELD STRENGTH MODE
Noise/ Spurious Level (RSM), typical See Table 1 (on next page)
Uncertainty, by marker b See FIELD STRENGTH MODE
Results Scale, selectable 20 dB to 120 dB (logarithmic)
Data Acquisition,
(start/stop)
2 kHz Range Continuous and Overlapping / Seamless
32 kHz Range Continuous
Window Length: 2 kHz Range 1.0 second
32 kHz Range 0.1 second
Result
Averaging,
selectable
2 kHz Range 1, 2, 4, or 8 seconds
32 kHz Range 4, 8, 16, or 32 Spectra
Graphical Display, selectable
(SPECTRUM FFT only)
Result: Absolute or Normalized to Reference Limit of Selected Standard;
Marker Displays 9 Highest Peaks within Selected Frequency Range
Result List, tabular
(HARMONICS only)
Result of 2 nd to 9 th Harmonic e and Total Distortion (with/within noise),
Referenced to the Level of Fundamental Frequency
MEASUREMENT DATA MEMORY (individual in B- and E- Field unit)
Capacity, typical (dependent on setting)
3600 Single Values or 22 Spectral Analyses
Control: Field Strength &
Exposure STD Modes
Manual or Sequence Timer or Sequence Spatial-Assigned
Spectrum FFT &
Harmonics Modes
Manual Only
b Uncertainty includes all partial uncertainties (absolute, linearity, frequency response, and isotropy) as well as temperature and humidity related deviations.
Signal sinusoidal, level >10% of selected measurement range; additional uncertainties apply with the steep frequency band limits.
c Stored standards can be updated by software: e.g. ICNIRP: occupational, general public; BGV B11: Exp. (2 h/d), Exp. 1, Exp. 2; VDE 0848: draft
d Dependent on selected standard.
e Limited by selected frequency range
efa-300 field analyzer