Chauvin Arnoux E3N Mode D'emploi page 19

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domain): DC to 20kHz.
„ Cutoff frequency: -3dB at 100kHz.
„ Rise or fall time: <4µs.
Input/output quantities
„ Typical noise level at output (peak-to-peak value) measured with a Tektronix 7603 oscilloscope with
7A22 plug-in (pass band 100kHz).
Frequency band
10mV/A range
100mV/A range
„ Zero offset: 1 Amax.
The ZERO thumbwheel is used for a rough correction of this offset. The correction can be refined by
adjusting the zero of the measuring instrument.
Note: We recommend checking the zero offset after measuring a very strong current. To do this, mark a
reference on the oscilloscope in the GND setting, then couple in DC; if too large an offset is observed,
it means that the clamp is magnetized.
To demagnetize the clamp, simply open and close it several times without the conductor or apply a
decreasing magnetic field to it.
Note: The frequency response may in certain cases be > 0 dB. It will always be < 3 %.
Typical frequency response curves for a measured current of 1Apeak
%
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
10
Allice Messtechnik GmbH
DC - 100kHz
480µV
3mV
100
1 000
10mV/A range
10 k 100 k
19
100mV/A range
1000 k f (Hz)