Raymarine ST60 Tridata - Manual (Page 19)

Chapter 1: Operation 7
If you are using one of the race-start timers and the timer buzzer is
enabled, the buzzer will:
• Double-beep every minute.
• Beep three times at the start of the last 30 seconds.
• Beep once for each of the last 10 seconds.
• Beep for 2 seconds at zero.
The timer buzzer is enabled or disabled as part of the calibration
procedure (see Chapter 4, Calibration).
Note: After a race-start timer has counted-down to zero, it will then start
counting up.
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 ( ) 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 the
illumination-adjust mode.
2. There are four preset illumination levels. Use the depth key to cycle
through these levels until you reach the level you want.
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