AEMC OX III Series User Manual page 123

Harmonic Analysis Mode - The "Vertical" Menu
Harmonic Analysis Mode (cont'd)
ch1 ch2
ch3 ch4
Sensitivity/Coupling
Channel Sensitivity
Coupling
bw limit
Vertical scale
Coefficient
Measurement unit
Init
Probix
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Modification of the parameters of ch1, ch2, ch3 or ch4, independently.
Modification of the channel's sensitivity using the stylus on the scrollbar:
from 2.5 mV to 200 V/div.
The sensitivity is indicated in the channel parameter display area. It takes into
consideration the parameters of the "Vertical scale" menu.
Modification of AC - DC - GND coupling
blocks the DC component of the input signal and attenuates the signals
AC:
below 10 Hz
transmits AC and DC components of the input signal
DC:
GND: the instrument connects the selected channel input to a 0 V ref. level.
The " " symbol indicates the coupling selected. It is shown in the modified
channel parameter display area.
Bandwidth limit for the channel and its trigger circuit, to reduce display noise and
false triggering.
The bandwidth limit of each channel can be limited to 5 kHz, 1.5 MHz or
20 MHz. The bandwidth limit of a channel is displayed in the control area by the
following symbols :
This menu can also be called up by double-pointing with the stylus on the
required channel parameter display area (ch1, ch2, ch3 or ch4).
Defines the vertical scale of the selected channel on the basis of the current
settings.
Assignment of a multiplication coefficient to the selected channel's sensitivity.
This can be modified with the stylus, using the table of usable numbers, after
selecting the "Coefficient" area.
The key deletes the character preceding the cursor in this area.
Predefined values (x1, x10, x100, x1000), corresponding to standard probe
coefficients, can be assigned directly.
The sensitivity value indicated in the channel parameters display will be modified
in accordance with the coefficient.
Modification of the selected channel's vertical scale unit.
This modification is performed using the mouse and the table of usable
characters, after selecting the "Measure Unit" zone.
The key can be used to delete the value preceding the cursor in the zone to
be modified.
The vertical scale unit will be indicated in the modified channel's parameter
display.
Reinitializes the multiplication coefficient to 1.00 and returns to the V
measurement unit.
This menu can also be called up by double-pointing with the stylus on the
required channel parameter display area (ch1, ch2, ch3 or ch4).
This menu is identical to the one in "Oscilloscope" mode.
With the Probix HX0030 probe (1/10 probe), some functions are inactive in
"Harmonic Analysis" mode.
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VI - 123