SCHOTT ProLab 4000, Operating Manual, Page: 38 / 228

Operating principles ProLab 4000
3 8 ba75646e03 12/2012
4.3 Entry of numerals, letters and characters
Numerals, letters, punctuation marks and special characters are
entered on the alphanumeric keypad on the meter or an external key-
board.
Entering characters is required in operating situations such as the fol-
lowing:

Entry of the date and time

Entry of an ID, e. g. if you want to store measurement data

Entry of the user name and password

User management
Character set The following characters are available:

Numerals 0 ... 9

Letters A ... Z

Punctuation marks . -
Operating principle Characters can be entered as long as an input field is displayed.
The keys of the alphanumeric are assigned to the characters that are
printed on them. Example: With the
<PQRS 7> key you can enter the
following characters: 7, P, Q, R, S.
The required character is selected by pressing the key several times
(similar to a cell phone). The numeral appears on the first pressing if
the key is assigned to several characters. One keypressing is sufficient
to enter a numeral.
The key for punctuation marks ( <- .> ) is assigned to a decimal point of
minus sign, depending on the context. If a number is in front of the
punctuation mark, a decimal point is automatically displayed, in all
other cases a minus (-).
A character is taken over in the input field if

the character is highlighted longer than one second,

the character is confirmed with <OK> ,

another alphanumeric key is pressed.
Operating example:
Entering an ID
The input field for an ID appears if you press the <STO> key to store
measurement data. A dialog with input fields for the ID and comment
opens up. In the following example, a measurement dataset with the ID
"Test" should be stored.
7
PQRS
1 Press <TUV 8 > several times until "T" appears in the input line.
After approx. 1 second the character is taken over.