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COMBI

LIGHT

ALARM

TIMER

UPPER

INFO

LOWER

INFO

MPH KNM HKts

DEPTH

SPEED

FTM

2 OPERATION

2.1 Depth Display

When the IS12 Combi is switched on, the current water depth

is shown on the top line of the display (Fig 2.1) -

IS12 Combi

E04052

Fig 2.1 - Default Combi Display

The digits show the water depth below the boat. In this exam-

ple, the depth is displayed in Metres.

NOTE As a default, the Combi will display the depth below the trans-

ducer. An offset can be entered so that the display shows

either the depth below the keel or the waterline depth. Refer

to Section 3.3 for more details.

2.2 Depth Alarms

The IS12 Combi features an audible alarm function that can be

set to alert if the water depth falls below or above a speciﬁed

value. The shallow alarm will sound if the water depth falls

below a speciﬁed amount, to warn if the boat is about to run

aground and the deep alarm will sound if the water depth

goes above a speciﬁed amount.

NOTE This function can also be used as a navigation tool when navi-

gating using depth contours - by setting the shallow and depth

alarms below and above the required contour depth, the alarm

will sound if the boat strays off the contour.

To access the depth alarms press the UPPER INFO key once

Simrad IS12 User Manual

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