Garmin echo 201 Owners Manual - Page 9

• sets the alarm to sound when fish of all sizes are detected. • sets the alarm to sound only when medium or large fish are detected. • sets the alarm to sound only when large fish are detected. Shallow Water: Sounds when the water depth is shallower than the specified depth. Water Temperature: Sounds when the water temperature varies more than ± 2 °F (± 1. 1 °C). Alarm settings are saved when the device is turned off. NOTE: You must connect the device to a temperaturecapable transducer to use this alarm. depth from the bottom of the keel instead of from the transducer location. 1 Select an option, based on the location of the transducer: • If the transducer is installed at the water line , measure the distance from the transducer to the keel ofÀ the boat. Enter this value in step 3 as a positive number. • If the transducer is installed at the bottom of the keel , Á measure the distance from the transducer to the water line. Enter this value in step 3 as a negative number. Sonar Numbers Settings You can adjust which numbers are displayed on the full screen page, the split zoom page, and the split frequency page. You can also adjust the size of the numbers. Select MENU > Setup > Sonar Numbers. Battery: Displays the battery voltage. Number Size: Sets the number size. Odometer: Displays the odometer. NOTE: The device must be connected to a water-speed wheel transducer to display the odometer. Water Speed: Displays the water speed. NOTE: The device must be connected to a speed-wheel transducer to show the water speed. Water Temperature: Displays the water temperature. NOTE: The device must be connected to a temperature transducer to show the water temperature. System Settings Select MENU > Setup > System. Language: Sets the on-screen language. System Information: Allows you to view software information. System Unit Settings Select MENU > Setup > Units. Depth: Sets the depth units to feet (ft), meters (m), or fathoms (ftm). Distance: Sets the distance units. Temperature: Sets the temperature units to Fahrenheit (°F) or Celsius (°C). NOTE: You must have a temperature-reading transducer connected to display the temperature. Water Speed: Sets the water speed units. NOTE: You must have a water-speed transducer connected to display the water speed. Restoring the Factory Default Settings NOTE: This deletes all settings information you have entered. 1 Select MENU > Setup > System > System Information > Factory Settings. 2 Select an option. Calibration 2 Select MENU > Setup > Calibration > Keel Offset. 3 Use the arrow keys to enter the keel offset measured in step 1. Setting the Water Temperature Offset You can set the temperature offset to compensate for the temperature reading from a temperature-capable sensor. 1 Measure the water temperature using the temperature- capable transducer that is connected to the device. 2 Measure the water temperature using a different thermometer or temperature sensor 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 6 as a positive number if the sensor connected to the device measures the water temperature as being colder than it actually is. Enter this value in step 6 as a negative number if the sensor connected to the device measures the water temperature as being warmer than it actually is. 4 Select MENU > Setup > Calibration > Temperature Offset. 5 Use the arrow keys to enter water temperature offset measured in step 3. Calibrating the Water Speed Sensor 1 Select MENU > Setup > Calibration > Calibrate Water Speed. 2 Follow the on-screen instructions. NOTE: You must enter the top speed as measured by an external source, such as a GPS device. Do not enter the water speed value from a connected speed-wheel transducer. Setting the Keel Offset You can enter a keel offset to compensate for the surface reading for the depth of a keel, making it possible to measure Calibration 5