Chapter 1: An Introduction to Digital Instruments 2-1-5ST290 Instrument System Owner’s HandbookYou can disable or enable each alarm function, and you can set levels forenabled alarms. Refer to Section 2, Chapters 2 and 3, for alarm setupinstructions for Graphic and Data Displays, respectively.Waypoint arrival alarmWhen the waypoint arrival alarm is enabled, an alarm occurs when yourboat reaches a distance you define, from a waypoint. On GraphicDisplays, this distance is shown as a circle around the waypoint.Man Overboard alarmIf the Man Overboard (MOB) alarm is triggered (from the ManOverboard Keypad (see Section 4, Chapter 3), the distance and bearingto the MOB location are displayed.1.3 Instrument setupST290 digital instruments have a wide range of customizing and setupfeatures, to enable you to set up the best configuration for you and yourboat. The setup features are summarized here, but for details of how toimplement them, refer to Section 7, System Setup.Most of the setup and customization features are particular to individualdigital instruments, so the chapter and page structure at any oneinstrument may well be different from other instruments.User Setup chapterA USER SETUP chapter enables you to enter User Setup mode, to set:• Response times.• Favorite pages.• Which operating profile is applied.• Display options.• The units used for displaying data.• Backlighting values.• Remote control configuration.User Setup is also used to calibrate the transducers and setup the autopilotsystem.Refer to Section 7, System Setup, for further details on User Setup.81183_2 S2.book Page 5 Tuesday, May 6, 2003 8:39 AM