2-1-8 Section 2: Using Digital Instruments
ST290 Instrument System Owner’s Handbook
Adjusting backlighting
Note: Changing the backlighting level at one instrument will change the
level at all other instruments in the system.
To set the required backlighting level:
1. At any instrument operating in Normal mode, hold down the but-
ton for 1 second, to enter the Backlight Adjust mode.
2. Use the or button to set the required level, either OFF, or level 1,
2 or 3.
3. To return to normal operation, either wait for 5 seconds or press the
button or the button.
Adjusting Contrast
To adjust the display contrast:
1. With the instrument operating in Normal mode, hold down the
button for 1 second, to enter the Backlight Adjust mode.
2. While in Backlight Adjust mode, hold down the button for a fur-
ther 1 second, to enter Contrast Adjust mode.
3. Use the or button to set the required level.
4. To return to normal operation, either wait for 5 seconds or press the
button or the button.
1.5 Icons
The alarm and anchor alarm icons are described in Section 1 of this
handbook. Other icons used on digital instrument displays are shown in
Figure 1-6 .
Figure 1-6: Digital instrument icons
D5693-1
or
or
Trend indicator, data value increasing
Trend indicator, data value decreasing
Active display indicator (Data Display only)
81183_2 S2.book Page 8 Tuesday, May 6, 2003 8:39 AM
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