Raymarine ST60 Specifications download pdf (Page 16)

4 ST60+ Depth Instrument Owner’s Handbook

When the instrument is operating as a master, you can check the alarm levels and

if necessary set them up (see

Depth alarms

flow chart). To do this, use the alarm

button to select the required alarm level, then:

• To enable or disable the alarm, hold in the

reset button for 1 second. If an

alarm is disabled, the associated screen shows an OFF legend.

• To change the value of the alarm level, press the offset and reset buttons

together to enter adjust mode, then use these buttons individually to set the

required value.

Depth offsets

Depths are measured from the transducer to the sea bed. However, offsets to the

actual distances measured can be applied during calibration (see

Chapter 4,

Calibration

), so that the displayed depth reading represents either the depth

from the keel or the depth from the waterline (W/L).

To see the offsets applied on your vessel, press the offset button. If the

instrument is operating as a master, the display will show the size of the offset

(either positive or negative) and the appropriate legend:

• When the offset is a positive value, the legend W/L is displayed.

• When the offset is a negative value, the legend KEEL is displayed.

• When the offset is zero, the legend OFFSET is displayed. With zero offset

applied, the displayed depth reading is measured from the transducer.

1.3 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 buttons. To adjust the level

of illumination:

1. Hold down the

depth button for approximately one second, to enter the illu-

mination-adjust mode.

2. There are four preset illumination levels. Momentarily press the

depth but-

ton to cycle through these levels until you reach the level you want.

WARNING: Use the correct depth offset

The use of the correct depth offset is critical to the safety of the

vessel. If incorrect offset values are applied, this could result in

misleading depth information being displayed with a

consequent risk of running aground. Take great care to ensure

you set the correct value, as described in

Chapter 4, Calibration

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