Waters 2489, Overview And Maintenance Manual

Page: 55 / 150

June 11, 2015, 715004752 Rev. A
Page 55
3.2.3 Navigating the user interface
To operate the detector:
1. Press the Enter key or the up and down arrow keys to navigate among editable
fields on a display.
Tip:
A thickened border highlights the active field.
2. Press Enter to advance the active field once you complete an entry.
3. When you make an error, press CE (Clear Entry) to undo any changes and
return to the active entry field.
Tip:
An active field containing a choice list is indicated by a numeral to the right
of the field and within the thickened border.
6 – See 0-9, above. Contrast – Permits contrast
adjustment (viewing angle) of
the liquid crystal display.
0 – See 0-9, above. Cancel – In some modes,
backs out of a prompt without
completing the task. The word
“Cancel” appears as a cue in
the lower, right-hand border of
the message text.
• – Enters a decimal point.
Also positions the cursor at
the last entry in a list.
+
/– – Some edit fields accept
negative-number entries. Use
this function to invert the sign
of the number in an active
field.
CE – Clears an editing change,
and returns the contents of a
field to its previous value. Sets
the value to a unique word for
some fields. For example, in
the voltage offset diagnostic
display, you can enter either a
numeric offset value or press
CE to change it to OFF.
Clear Field – Clears the
current entry field before you
enter the desired values.
Enter – Completes the entry in an edit field. Also advances the
active field, as if the Down arrow had been pressed (except
after editing the wavelength on the absorbance screen). Press
Enter to acknowledge error messages and other prompts. In
these cases, the word “Enter” appears as a cue in the lower,
right-hand border of the message text.
Table 3–3: Detector keypad description (continued)
Key Unshifted Shifted
Contrast
6
Cancel
0
+/–
•
Clear Field
CE
Enter