Alarms; Display Settings; Illumination; Contrast - Raytheon ST60 Owner's Handbook Manual

Chapter 1: Operation

1.3 Alarms

An alarm condition occurs if:
• The depth is less than the SHALLOW or SHALLOW anchor threshold.
• The depth is greater than the DEEP anchor threshold.
• The depth crosses the DEEP threshold.
An alarm condition is indicated by an alarm buzzer and a flashing
alarm symbol (bell icon) on the display. SHALLOW or DEEP alarms are
indicated by up and down arrows respectively, and for anchor alarms
an anchor symbol is displayed..
When the instrument is operating as a master, you can check the alarm
thresholds and if necessary set them up, as detailed under Normal
operation - Depth. If an alarm is not enabled, the associated display
shows an OFF legend.

1.4 Display settings

Illumination

When the instrument is first powered up, the display illumination is set
to its lowest (courtesy) level, to facilitate initial access to the keys.
To adjust the level of display illumination:
1. Hold down the depth key for approximately one second, to enter
2. There are four preset illumination levels. Momentarily press the
3. Press any other key to leave the illumination-adjust mode.
Note: The display will also return to normal operation 7 seconds after
the last key press.

Contrast

To adjust the display contrast:
1. Hold down the depth key for approximately two seconds, to
the illumination-adjust mode.
depth key to cycle through the these levels until you reach the
level you want.
enter the contrast-adjust mode.
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