12 Specifications EFA-200/-300
12-4
Background display level due to intrinsic noise
RMS detection mode
Typical values:
Dynamic range
The dynamic range for a given measurement range is calculated from the
difference between the dynamic range limit and the intrinsic noise indication
for the specific measurement range.
Physical constraints result in a higher background display level when the
built-in B-Field Probe and the external 3 cm diameter B-Field Probe are
used. This can mean that the sensitive measurement ranges can only be
used sensibly with the 100 cm
2
cross-sectional area probe.
12.2.4 Measured value detection
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,
30 Hz to 2 kHz
4 nT 100 nT 20 nT 0.7 V/m
Broadband,
5 Hz to 32 kHz
10 nT 200 nT 50 nT 4.5 V/m
Bandpass filter,
center frequency
50 Hz to 400 Hz
0.8 nT 25 nT 5 nT 0.14 V/m
Detection, selectable RMS: root mean square value
– or –
VECT PEAK: peak value, true phase
Evaluated measurement
axes, selectable
3-dimensional (isotropic), X, Y or Z
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