Waters 2489, Overview And Maintenance Manual

Page: 52 / 150

June 11, 2015, 715004752 Rev. A
Page 52
Figure 3–4: Keypad:
Primary function keys take effect immediately, with no further entry required.
Secondary function keys require you to enter information into parameter fields and to
press Enter for the functions to take effect.
Keys that appear in all caps (HOME, DIAG, TRACE, METHOD, CONFIGURE, and SCAN)
directly invoke a function from most screens.
For numerical entries from 1 to 9 on choice lists or menus, enter the number
corresponding to the desired item, and then press Enter. For the number 10, select 0,
and then press Enter. To go to the end of a choice list, select • . For entries numbered
11 or 12, scroll to the desired item on the choice list, and then press Enter.
The table below presents the functions of the primary and secondary keys.
Table 3–3: Detector keypad description
Key Unshifted Shifted
HOME – Displays the
absorbance screen containing
the icons, and the Wavelength
and AU fields.
? – Displays context-sensitive
help when available.
Enter
Shift
0
1 2
4
5
8 7
3
6
9
CE
Chart-mark
Auto Zero Run/Stop
TRACE
DIAG Next
λ/λλ
Lamp Lock
Reset ?
METHOD Calibrate
CONFIGURE
Previous
Cancel
System Info
.
A/B
Scale
SCAN
HOME
+/−
Clear Field
Contrast
?
HOME