Garmin echoMAP CHIRP 74sv Owner's Manual

Trip gauges show information for odometer, speed, time, and 

fuel for your present trip.

Select Gauges > Trip.

Select Gauges > Trip.

Select an option:
• To set all the readings for the present trip to zero, select 

Reset Trip.

• To set the maximum speed reading to zero, select Reset 

Maximum Speed.

• To set the odometer reading to zero, select Reset 

Odometer.

• To set all the readings to zero, select Reset All.

Before you can view engine and fuel gauges, you must be 

connected to a NMEA 2000 network capable of sensing engine 

and fuel data. See the installation instructions for details.

Select Gauges > Engine.

You can show information for up to four engines.

From the engine gauges screen, select MENU > Gauge 

Setup > Engine Selection > Num. Engines.

Select an option:
• Select the number of engines.
• Select Auto Configure to automatically detect the number 

of engines.

Before you can customize how the engines are shown in the 

gauges, you must manually select the number of engines 

From the engine gauges screen, select MENU > Gauge 

Setup > Engine Selection > Edit Engines.

Select First Engine.

Select the engine to display in the first gauge.

Repeat for the remaining engine bars.

You can enable the chartplotter to display engine status alarms.

From the engine gauges screen, select MENU > Gauge 

Setup > Status Alarms > On.

When an engine alarms is triggered, a gauge status alarm 

message appears and the gauge may become red depending 

on the type of alarm.

From the engine gauges screen, select MENU > Gauge 

Setup > Status Alarms > Custom.

Select one or more engine gauge alarms to turn on or off.

Before you can set a fuel level alarm, a compatible fuel flow 

sensor must be connected to the NMEA 2000 network.
You can set an alarm to sound when the total amount of 

remaining onboard fuel reaches the level you specify.

Select Settings > Alarms > Fuel > Fuel Alarm > On.

Enter the remaining amount of fuel that triggers the alarm.

Select Settings > My Vessel > Fuel Capacity.

Enter the combined total capacity of the fuel tanks.

You can synchronize the fuel levels in the chartplotter with the 

actual fuel in the vessel when you add fuel to your vessel.

Select Gauges > Engine > MENU.

Select an option:
• After you have filled up all the fuel tanks on the vessel, 

select Fill Up All Tanks. The fuel level is reset to 

maximum capacity.

• After you have added less than a full tank of fuel, select 

Add Fuel to Boat, and enter the amount added.

• To specify the total fuel in the vessel tanks, select Set 

Total Fuel Onboard, and enter the total amount of fuel in 

the tanks.

Before you can view wind information, you must have a wind 

sensor connected to the chartplotter.

Select Gauges > Wind.

You can configure the sailing wind gauge to show true or 

apparent wind speed and angle.

From the wind gauge, select MENU > Sailing Wind Gauge.

Select an option:
• To show true or apparent wind angle, select Needle, and 

select an option.

• To show true or apparent wind speed, select Wind Speed, 

and select an option.

You can specify whether the vessel speed data displayed on the 

gauge and used for wind calculations is based on water speed 

or GPS speed.

From the wind gauge, select MENU > Compass Gauge > 

Speed Display.

Select an option:
• To calculate the vessel speed based on data from the 

water-speed sensor, select Water Speed.

• To calculate the vessel speed based on GPS data, select 

GPS Speed.

You can specify the source of the heading displayed on the wind 

gauge. Magnetic heading is the heading data received from a 

heading sensor, and GPS heading is calculated by your 

chartplotter GPS (course over ground).

From the wind gauge, select MENU > Compass Gauge > 

Heading Source.

Select GPS Hdg or Magnetic.
NOTE: When moving at low speeds or when stationary, the 

magnetic compass source is more accurate than the GPS 

source.

You can specify the range of the close-hauled wind gauge for 

both the upwind scale and the downwind scale.

From the wind gauge, select MENU > Compass Gauge > 

Set Gauge Type > Close Hauled Gauge.

Select an option:
• To set the maximum and minimum values that appear 

when the upwind close-hauled wind gauge appears, select 

Change Upwind Scale, and set the angles.

• To set the maximum and minimum values that appear 

when the downwind close-hauled wind gauge appears, 

select Change Downwind Scale, and set the angles.

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Gauges and Graphs