Hach LICO 620, Basic User Manual, Page: 74 / 394

English 73
This display is used to enter letters, numbers and symbols as needed
when programming the instrument. Unavailable options are disabled
(grayed out). The icons on the right and left of the screen are described
in
Table 2 .
The central keypad changes to reflect the chosen entry mode. Press a
key repeatedly until the desired character appears on the screen. A
space can be entered by using the underscore on the
YZ_ key.
Press Cancel to cancel an entry, or press OK to confirm an entry.
Note: It is also possible to use a USB keyboard (with US keyboard
layout) or a hand-held USB barcode scanner.
Main menu
A variety of modes may be selected from the Main Menu. The following
table briefly describes each menu option.
There is a toolbar on the right-hand side of the screen. Press to activate
the various functions.
Table 2 Alphanumeric keypad
Icon / key Description Function
ABC/abc Alphabetic
Toggles the character input mode between upper and
lower case.
# % Symbols
Punctuation, symbols and numerical sub- and
superscripts may be entered..
123 Numeric For entering regular numbers..
CE Clear Entry Clear the entry.
Left
Arrow
Back
Deletes the current character and goes back one
position.
Right
Arrow
Next Navigates to the next space in an entry.
Table 3 Main Menu options
Option Function
Color measurement
The COLOR MEASUREMENT MODE is
used to determine color values such as
Hazen, Gardner and Saybolt. The LICO 690
also offers three-dimensional, absolute
colorimetric values, as well as the color
scales of CIE L*a*b*, Hunter Lab or the
European Pharmacopoeia.
Color difference measurement
(only LICO 690)
The mode for COLOR DIFFERENCE
MEASUREMENT is used to determine a
quantitative color difference between a
reference (R) and a sample (P) in the three-
dimensional color space (CIE L*a*b* or
Hunter Lab). In this mode, an additional
reference memory for up to 100 references
is available.