8 Specifications ELT-400
8-2
8.2 Field strength mode
Brief description
• Measurement of magnetic flux density based on a broadband evaluation
of the measurement signal.
• Display of measurement result in units of mT or µT.
Frequency range
Measurement range, dynamic range
All measurement range information depends on the settings selected.
1 The overload limit indicates the maximum measurable RMS value of a sine wave (CW) signal.
The frequency-dependent damage level should also be taken into account.
2 The nominal measurement range indicates the maximum measurable RMS value of a signal
of any shape with a crest factor (peak value/RMS value) of less than 22. The frequency-
dependent damage level should also be taken into account.
Bandwidth (-3 dB),
selectable
1 Hz to 400 kHz, 10 Hz to 400 kHz, 30 Hz to 400 kHz
Frequency response Flat response, attenuation occurs at the selected
bandwidth limits
ª see figure C-2
ª see figure C-3
Mode 320 µT 8 mT 80 mT
Range Low High Low High Low High
Overload limit
(1)
32 µT 320 µT 800 µT 8 mT 8 mT 80 mT
Nominal
measurement range
(2)
2 µT 20 µT 50 µT 500 µT500 µT5 mT
Intrinsic noise (RMS),
approximate
70 nT 320 nT 1,8 µT8 µT18 µT 80 µT
Display resolution
Range: Low
1 nT