Instruction Manual
Model NGA 2000 TO2
a.Menu Lines & Softkey Functionality
Menu lines can be selected with the ↑ key or the ↓ key. The selected line is dis- played as white lettering on a black back- ground (reverse text). Menus can contain four different types of lines:
Menu Line – A line ending with three dots
(…) indicates that it leads to a submenu. The submenu can be activated by press- ing the ↵ key or the → key when the line is highlighted.
Function Line – A line ending with an exclamation point (!) indicates that it will start a function. The function can be acti- vated by pressing the ↵ key or the → key when the line is highlighted.
Variable Line – A line ending with a colon
(:)indicates that it displays a module variable parameter. Some parameters can be changed and some parameters display only a status and cannot be changed. Paramters that cannot be changed will be displayed below a line within the menu.
Text Line – A line without punctuation marks displays information.
Tag Line – At the top of each menu screen is the tag line of the current chan- nel. To the right of the Tag is the value of the indicated channel.
The Function Keys (Softkeys) can some- times be assigned as Functions (excla- mation point) or Submenus (three dots) as shown in Figure
Tag Line
Menu Line
Function Lines
Variable Lines 
CLD | 7.50 ppm |
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Analyzer basic controls (calibration) & setup…
Analyzer and I/O, expert controls & setup…
System configuration and diagnostics…
Display controls…
Time & Date:
System tag:
Measure |
| Status… |
| Channel |
| Lock… |
| MFG Data |
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Selected Line
(Reverse Text)
Lines below this separator are information and cannot be changed.
Function Keys F1 – F5 Legend
Figure 3-2. The Display Screen
b.Common Function Keys
The function keys are shown in Figure
Display – Change from the single com- ponent display to the
Measure – Change from menus and submenus to the single component dis- play of the selected channel. F1.
Status – Change to the menu “Current measurement parameters” which displays the most important parameters and infor-
mation about the status of the current channel or module. F2 if available. (See Section
Main – Change from single component display to the main menu. F3 in the single component display. (See Section
HOME – Change for various menus to the main menu. F1.
Channel – Scrolls through the channels in the same menu. In the main menu and the single component display menu it moves between the channels of the con- nected Analyzers and Analyzer modules. In the submenus it moves only between
Rosemount Analytical Inc. A Division of Emerson Process Management |