NF WAVE FACTORY WF1967, Инструкция по эксплуатации

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4.4 Setting for Main Items
WF1967/WF1968
4-29
When the input field of Period appears, set in the
same way as the one for Frequency. When a
number is entered by using the numeric keypad, the
unit key for period setting is displayed on the
soft-key. When changed to the period display, the
displayed is changed as follows.
Item Name: Frequency
→ Period
Unit display: Hz
→ s
Soft-keys: Period
→ Freq
4.4.5 To Set Period
Period can be set instead of Frequency.
The following two methods are available to change from the frequency display to the period display:

Use the soft-key [Freq] / [Period]
The input field of Frequency opens. When the current Frequency is displayed, the soft-key
[Period] is displayed. Press the soft-key [Period] to open the period input field and changes
display from [Frequency] to [Period]. The soft-key [Period] changes to [Freq].

Press the FREQ key again
When the shortcut-key FREQ is pressed twice without opening the input field of Frequency, the
input field is opened.
While the input field of Frequency or Period is opened, the display switches between Frequency
and Period when the FREQ key is pressed.