2-3-2 Section 2: Using Digital Instruments
ST290 Instrument System Owner’s Handbook
If you want to use a different operating profile, or edit a custom profile,
refer to Section 7, Chapter 3, Setting Up Data Displays.
3.2 Operation
Getting started
At power up, each digital instrument is in Normal mode, using the oper-
ating profile that was in use when the instrument was last switched off.
Note: When an instrument is switched on for the first time after installa-
tion, an operating profile must first be selected. See Section 2, Chapter 1
for details.
Selecting active display area
In Normal mode, the upper and lower displays update continuously to
show the current data in their respective chapters.
In order to make any changes to either display area (for example,to select
another page or chapter), you must first select that area as the active
displayarea. To do this, use the or button, to move theactive display
indicator to the required display area (see Figure 3-2 ).
Figure 3-2: Selecting the adjustable display area
Selecting chapters & pages
Chapters
To select a different chapter in either display area (upper or lower):
1. Use the or button to select the required active display area
(see Figure 3-2 ). The active display indicator moves to the selected
area.
HEADING
DEPTH FT
HEADING
DEPTH FT
Upper display active
Lower display active
D5371-1
Active
display
indicator
Active
display
indicator
81183_2 S2.book Page 2 Tuesday, May 6, 2003 8:39 AM
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