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6. Operation
6.3.1.8 Key "DC AC" – Measuring Mode
With the key "DC AC" the measure mode is switched between DC field and
AC field measurement. Correspondingly the coupling
selected measuring mode is shown in the upper left of the display.
DC:
The LCD display shows the arithmetic mean of the magnetic field
signal.
The signal of the magnetic field in the frequency range from 0 to
100 kHz (-3 dB) is available at the analog output.
AC:
In this position the true effective value (true RMS) of an overlaying
alternating field in the range of 5 Hz to 100 kHz (-3 dB) is displayed.
The analog output provides the time response of the overlaying AC-
field in the range of 5 Hz to 100 kHz.
For the time response of the display and the analog output see section
6.3.2.1 Time Response of Display and Analog Output.
See also section 6.3.3.7 Command "coupling" for controlling the measuring
mode via the USB interface.
6.3.1.9 Key "gain" – Measuring Range
With the key "gain" the measuring range can be selected. There are
available the three ranges B3, B2 and B1. These correspond to a sensitivity
of x1, x10 and x100 of the analog signal. The selected measuring range is
shown in the lower left of the display.
To which measuring range the ranges B1, B2 and B3 correspond can be
read on the imprint of the connector housing of the probe. According to the
chosen range the decimal point and the unit prefix is set at the display.
The chosen range determines the sensitivity of the display and the analog
output.
See also section 6.3.3.12 Command "gain" for controlling the measuring
range via the USB interface.
Projekt Elektronik
MESS - UND REGELUNGSTECHNIK GMBH
Figure 14 Display measuring mode
is switched. The
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