NARDA EFA-200 - Averaging Time; Refresh Rate; Measurement Uncertainty

EFA-200/-300 12 Specifications
12-5
12.2.5 Averaging time / Refresh rate
The averaging time for the RMS value meter is 1 second.
The peak value meter indicates the maximum instantaneous value of the
vector that occurred during the past 250 ms.
The measured values are updated every 250 ms.
12.2.6 Measurement uncertainty
The measurement uncertainties specified in the table apply under the
following conditions:
• Signal shape: sine wave; Detection: RMS; Display mode: LIVE
• Drive level at least 10 % of the selected measurement range
• See Annex A regarding additional measurement uncertainties for signal
frequencies close to the band limits.
Typical values:
Setting B field unit E-Field Unit
(EFA-300
only)
100 cm
2
probe
(2245/90.10)
Built-in probe 3 cm probe
(2245/90.20)
Broadband,
5 Hz to 2 kHz
±3% @
≥
40 nT
±5% @
≥
1 µT
±4% @
≥
200 nT
±3% @
≥ 5 V/m
Broadband,
5 Hz to 32 kHz
±3% @
≥
80 nT
±8% @
≥
2 µT
±5% @
≥
400 nT
±3% @
≥
40 V/m
Bandpass filter,
center frequency
50 Hz to 400 Hz
±3% @
≥
10 nT
±5% @
≥
250 nT
±4% @
≥
50 nT
±3% @
≥ 1 V/m