Garmin GPSMAP 741xs Owner's Manual - Page 58

To adjust the Keel Offset, Setting the Water Temperature Offset, Configure, MY boat, Keel OFFset

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Configuring the Chartplotter To adjust the Keel Offset: 1. If the transducer is installed at the water line ➊, measure the distance from the transducer location to the keel of the boat. Enter this value in step 3 as a positive number. If the transducer is installed at the bottom of the keel ➋, measure the distance from the transducer to the water line. Enter this value in step 3 as a negative number. ➊ ➋ 2. From the Home screen, select Configure > My Boat > Keel Offset. 3. Enter the distance measured in step 1. Ensure that you enter a positive or a negative number based on the location of the transducer. 4. Select Done to accept the number. Temp Offset-set the temperature offset for the temperature sensor of your transducer. Setting the Water Temperature Offset You must have a NMEA 0183 water-temperature sensor, a Garmin Intelliducer, or a temperature-capable transducer to measure water temperature. The temperature offset compensates for the temperature reading from a temperature sensor. 1. Measure the water temperature using the temperature sensor or temperature-capable transducer that is connected to the chartplotter. 52 2. Measure the water temperature using a different temperature sensor or a thermometer that is known to be accurate. 3. Subtract the water temperature measured in step 1 from the water temperature measured in step 2. This is the temperature offset. Enter this value in step 5 as a positive number if the sensor connected to the chartplotter measures the water temperature as being colder than it actually is. Enter this value in step 5 as a negative number if the sensor connected to the chartplotter measures the water temperature as being warmer than it actually is. 4. From the Home screen, select Configure > My Boat > Temp Offset. 5. Enter the temperature offset calculated in step 3. 6. Select Done. Calibrate Water Speed-use this menu to calibrate a speed-sensing device. Follow the on-screen directions for calibration. If you do not have a speedsensing device, this menu does not appear. Note: If the boat is not moving fast enough or the speed sensor is not registering a speed, a "Speed Too Low" message appears. Select OK, and safely increase the speed of the boat. If you get the message again, stop the boat and make sure the speed-sensor wheel is not stuck. If the wheel turns freely, check the cable connections. If you continue to get the message, contact Garmin Product Support. Fuel Capacity-enter the combined fuel capacity of all the engines on your boat. GPSMAP 400/500 Series Owner's Manual

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Configuring the Chartplotter
52
GPSMAP 400/500 Series Owner’s Manual
To adjust the Keel Offset:
1. If the transducer is installed at the water line
➊
, measure the distance from
the transducer location to the keel of the boat. Enter this value in step 3 as a
positive number.
If the transducer is installed at the bottom of the keel
➋
, measure the
distance from the transducer to the water line. Enter this value in step 3 as a
negative number.
➊
➋
2. From the Home screen, select
Configure
>
MY boat
>
Keel OFFset
.
3.
Enter the distance measured in step 1. Ensure that you enter a positive or a
negative number based on the location of the transducer.
4. Select
done
to accept the number.
Temp OFFset
—set the temperature offset for the temperature sensor of your
transducer.
Setting the Water Temperature Offset
You must have a NMEA 0183 water-temperature sensor, a Garmin Intelliducer,
or a temperature-capable transducer to measure water temperature.
The temperature offset compensates for the temperature reading from a
temperature sensor.
1. Measure the water temperature using the temperature sensor or
temperature-capable transducer that is connected to the chartplotter.
2.
Measure the water temperature using a different temperature sensor or a
thermometer that is known to be accurate.
3.
Subtract the water temperature measured in step 1 from the water
temperature measured in step 2.
This is the temperature offset. Enter this value in step 5 as a positive
number if the sensor connected to the chartplotter measures the water
temperature as being colder than it actually is. Enter this value in step 5 as
a negative number if the sensor connected to the chartplotter measures the
water temperature as being warmer than it actually is.
4. From the Home screen, select
Configure
>
MY boat
>
Temp OFFset
.
5. Enter the temperature offset calculated in step 3.
6. Select
done
.
CaliBrate Water SpeeD
—use this menu to calibrate a speed-sensing device.
Follow the on-screen directions for calibration. If you do not have a speed-
sensing device, this menu does not appear.
NOTE:
If the boat is not moving fast enough or the speed sensor is not
registering a speed, a “Speed Too Low”
message appears. Select
OK
, and
safely increase the speed of the boat. If you get the message again, stop the
boat and make sure the speed-sensor wheel is not stuck. If the wheel turns
freely, check the cable connections. If you continue to get the message, contact
Garmin Product Support.
fuel CapacitY
—enter the combined fuel capacity of all the engines on your
boat.