Lake Shore 475, Руководство пользователя

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Lake Shore Model 475 Gaussmeter User’s Manual
4-16 RMS Operation Operation
Figure 4-4. Lowpass Filter
Lowpass Setting f
c
(Hz) Stop f
stop
(Hz)
20 40
60 80
140 160
If Filter Lowpass is selected the next screen appears as a prompt for selecting the corner frequency of the lowpass filter.
Sel ec t Wi t h ° ®
L o wp a s s 2 0 Hz
Use the s or t key to select from 20Hz, 60Hz, or 140Hz. Press Enter to accept the new selection and continue to the
next setting screen. Press Escape to cancel the new selection and return to the normal display.
Most RMS measurements reject the DC component of the measured field. This is the default configuration of the Model
475. If an application requires the inclusion of the DC, it can be turned on. The next screen appears as a prompt for
rejecting the DC component.
Sel ec t Wi t h ° ®
Re j e c t DC Ye s
Use the s or t key to select from Yes or No. Press Enter to accept the new selection return to the normal display. Press
Escape to cancel the new selection and return to the normal display.
NOTE: When the RMS measurement is configured to use the lowpass filter, the instrument will still display a field
overload if there is a large DC component present, even if the DC is being rejected.