Svantek SVAN 948 - 4.3. ACTIVATION OF OPTIONAL FUNCTIONS

SVAN 948 USER MANUAL .
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4.3. ACTIVATION OF OPTIONAL FUNCTIONS
The wide-band frequency analysis (1/1 OCTAVE or 1/3 OCTAVE) and the narrow-band frequency
analysis (FFT) are the optional function broadening the applications of the instrument. The function names
are specified in the MEASUR. FUNCTION sub-list of the FUNCTION list.
The view of the displays with the FUNCTION list opened (path: MENU / FUNCTION), the
MEASUR. FUNCTION selected and the MEASUR. FUNCTION sub-list opened with the LEVEL METER)
and FFT selected
A function is selected by placing the special character in the line with the function’s name. The
position of the character can be changed using the <

>, <

> push-buttons. After placing the character in
the line with the function’s name the user has to press the <ENTER> push-button. The window for
entering the access code to a function is opened in the first essay of its execution (after pressing the
<ENTER> push-button) in the case when a function was not purchased together with the instrument.
The view of the displays during the entering of the access code to a function
The introduction of the access code is performed in the same way as the edition of the other text
variables using the <

>, <

> push-buttons (the selection of the character's position), the <SHIFT> and
<

> push-buttons (the Insert function), the <SHIFT> and <

> push-buttons (the Delete function) and
the <

>, <

> push-buttons (the codes of characters). The verification is made after pressing the
<ENTER> push-button. If the entered code was wrong the message is displayed and the instrument waits
for the reaction of the user. After pressing the <ENTER> or the <ESC> push-button the information that
the function is not available is displayed and the instrument once more waits for the reaction of the user.
a)
b)
The view of the displays after the unsuccessful verification of the access code (a) and with the text displayed
after the negative verification (b)
After pressing the <ENTER> or the <ESC> push-button the instrument returns to the
MEASUR. FUNCTION sub-list displaying the list of the functions implemented in the unit (cf. the first Fig.
in this chapter). After successful verification of the access code the windows described above are no more
displayed. Once activated function is always available.
Notice: The number of the attempts for the access code entering is limited. After three
unsuccessful essays the possibility is blocked.