NF WAVE FACTORY WF1967, Instruction Manual (Operations, Page: 90 / 330

4.4 Setting for Main Items
WF1967/WF1968
4-40
4.4.12 How to Use Auto Range/Range Hold for Output Voltage
Auto-range is selected by default. The optimum range is automatically selected according to the
amplitude and DC offset (including high/low level settings) settings. When the range is changed, a
transitional voltage is generated. Therefore, it is controlled so as not to be an excessive voltage.
If the transitional voltage generated on range switching is undesirable, you can fix the range.
However, amplitude precision and waveform fineness decrease as the amplitude is reduced with the
range fixed.
a) Setting procedure
1.
When the range field is selected, the
current range is displayed. It is
expressed as a combination of the
maximum output voltage [Vp-p] and
the amplitude attenuator.
When the ENTER key is pressed, the
selection list for range processing is
opened.
2.
When [AUTO] is selected, it is set to
Auto range. Selecting [HOLD] fixes
the range at that time.
Select the desired range processing,
and then press the ENTER key.
b) Maximum values of Amplitude/DC offset for fixed range
When a range is fixed, the maximum values of amplitude and DC offset, and Ext Add gain is
fixed as shown in the following table.
Range
(Maximum output
voltage Vp-p,
Amplitude attenuator)
Maximum
Amplitude
(at no load)
DC offset
Max
(at no load)
AC+DC
Maximum Value
(at no load)
External Add gain
(Rated ±1V)
20V, 0dB 20Vp-p ±10V ±10V x10 or Off
20V, -10dB 6.325Vp-p ±10V ±10V x10 or Off
20V, -20dB 2Vp-p ±10V ±10V x10 or Off
20V, -30dB 0.6325Vp-p ±10V ±10V x10 or Off
4V, 0dB 4Vp-p ±2V ±2V x2 or Off
4V, -10dB 1.265Vp-p ±2V ±2V x2 or Off
4V, -20dB 0.4Vp-p ±2V ±2V x2 or Off
4V, -30dB 0.1265Vp-p ±2V ±2V x2 or Off
0.8V, 0dB 0.8Vp-p ±0.4V ±0.4V x0.4 or Off
0.8V, -10dB 0.253Vp-p ±0.4V ±0.4V x0.4 or Off
0.8V, -20dB 0.08Vp-p ±0.4V ±0.4V x0.4 or Off
0.8V, -30dB 0.0253Vp-p ±0.4V ±0.4V x0.4 or Off
When
selecting the
range field, the
current range
is displayed.
Selection list