The intermediate Swing Meter (Rate of Turn) system includes Maretron’s solid state compass (SSC200), which provides Rate of Turn information. This system also includes a GPS antenna/receiver (GPS200) which provides magnetic variation based on the vessel’s position. The magnetic variation is combined with the magnetic heading within the display to provide the user with true heading.
In addition to rate of turn, magnetic heading, and vessel attitude (i.e., pitch and roll) is provided by the compass and available for viewing on the display.
The following table shows the major components included within this example system plus a list of the information or data available for display.
| Product | Description | Available Data List |
| DSM250 | Helm pod display | Displays data in this list, monitors the data and if there is a problem will sound an internal buzzer. |
| GPS200 | Cabin top GPS | Position, speed over ground, course over ground, time, date, magnetic variation and more |
| SSC300 | Compass | Monitors magnetic heading, rate of turn and pitch and roll |
This file requires Maretrons free NMEA 2000® network design tool N2KBuilder® to be installed on your PC.
The following screenshots are examples of how monitored data can be displayed on the DSM250.
COG Course Up Rose
GPS Status
Inclinometer
Lat Lon
Local Time and Date
Magnetic Heading Cardinal
Magnetic Heading Digital
Magnetic Heading Head Up
Magnetic Heading North Up
Moon
Pitch and Roll
Rate of Turn 10 deg per sec
Rate of Turn 30 deg per min
Rate of Turn 30 deg per sec
Rate of Turn 100 deg per min
Rate of Turn 100 deg per sec
Rate of Turn 300 deg per min
Rate of Turn Digital
Rate of Turn Graph
SOG and COG
SOG Gauge
Sunrise and Sunset
True Heading Cardinal
True Heading Digital
True Heading Head Up
True Heading North Up
UTC Time and Date
Variation
