Setting The Water Temperature Offset - Garmin GPSMAP 536 Owner's Manual

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.
Transducer at Surface
A (+) positive number
shows depth at the bottom
of the keel.
Transducer at the
Bottom of the Keel
A (-) negative number
shows depth at the
surface.
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.
GPSMAP 400/500 Series Owner's Manual
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
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.
Configuring the Chartplotter
Configure > My Boat > Temp
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