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Sea Data Set TH52

7 DEPTH functions

DEPTH main-function

The actual depth between the boats keel or the water surface.

Units in meters (m), feet (FT) or fathoms (FA)

Preference is set by the user.

DEPTH sub-functions

LIGHT CONTROL

Set light level for all instruments, LOW, MID, MAX or OFF.

SHALLOW ALARM (SHA)

Aaudible and visual alarm is activated if the actual depth becomes less than the pre-set value.

DEPTH ALARM (DEA)

Aaudible and visual alarm is activated if the actual depth becomes deeper than the pre-set value.

ANCHOR ALARM

Aaudible and visual alarm is activated if the actual depth becomes less or deeper than the pre-set values.

Set shallow (SHA) alarm to actual depth minus 1,5 m / 5 FT then set depth (DEA) alarm to actual value plus 1.5 m / 5 FT.

BOAT SPEED (BSP/unit)

Boat speed 8water speed)

Unit in knots (KT), km/h (Kh) or miles/h (Mh)

Text alternates between (BSP) and the selected (unit).

Barometric pressure (unit/hPA)

The wireless windtransducer has a built in barometric pressure sensor. The Sea Data instrument displays the barometric pressure in the following units; Hecto Pascal (hPa) or Inch HG (INH). To set the unit (See 9.1.9, C25).

7.1.1 TRUE WIND ANGLE (TWA)

This function requires a log transducer.

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Nexus 21 TH52 operation manual Depth functions, Boat Speed BSP/unit, Barometric pressure unit/hPA