INFICON UL1000 Helium leak detector - Manual (Page 43)

Description and Working Principle
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4.2.2.5 MENU Button
When pressing the MENU button ( Fig. 4-2 /12) the selecting menu is shown at the
display. This function is not depending on the operating mode when calibrating.
If the menu is opened during the current session the operator will lead to the last
screen before the menu was left.
Pushing the MENU button again leads back to the screen of the previous working
mode. The software shows the last screen that was used before.
4.2.2.6 Soft Keys
The function of the eight Soft Keys Fig. 4-2 /2 … /5 and /8 … /11 depends on the
current menu. Only key 1 and 8 very often have the functions Back/Cancel (Softkey
no. 1) and OK (Softkey no. 8.).
Special Functions
When inputs are allowed or when settings can be selected in a submenu two of the
Soft Keys always have the same function:
• Soft Keys no. 1 Fig. 4-2 /2 is Cancel.
It allows to escape from the submenu without any changes of the present settings
and return to the previous menu page.
• Soft Keys no. 8 Fig. 4-2 /11 is OK.
The selected settings or edited values will be stored and the previous menu page
will be displayed again.
4.2.2.7 Numerical Entries
If you have opened a menu page where anumber can be changed please proceed
in the following way:
• If you don’t want to change anything, press Soft Key no. 1 Cancel.
• The digit that can be changed is displayed inverted. With the arrows (Soft
Key no. 8) and (Soft Key no. 4) you can choose which digit you need to
change.
• To change a digit to a specific number press the corresponding pair of numbers.
A submenu opens and the desired number can be selected. The submenu closes
automatically and the next digit of the total number now is inverted.
Having reached the last digit all corrections have to be confirmed by OK (Soft Key
no. 8).