Furuno GD-280, Руководство оператора

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6-8
6.4 Water Temperature Alarm
All fish species have their respective habitable water temperature range. If the water temperature
of the area you are in is far out of the habitable temperature range for a target fish, you can
hardly expect a good catch. The equipment can alert you to changes in water temperature, by
using water temperature data fed from an external water temperature sensor.
The equipment can bet set to release the water temperature alarm in one of three conditions:
•
When the water temperature is higher than the preset temperature
•
When the water temperature is lower than the preset temperature, or
•
When the present temperature is higher (or lower) than the last sampled reference. This is
called the current rip alarm.
Temp T
Time t
Setting
1 min
Current Rip
(a) Temperature increases
Temp T
Time t
1 min
Settings
(b) Temperature decreases
6.4.1 Setting the water temperature alarm
1. Press [MENU], [5], [1] to display the Alarm menu, and select Page 1.
2. Select In RNG or Out RNG from the Temperature field as appropriate.
3. Press
[↓]
, enter temperature range (-999.9 to +999.9
°
F) and press the [ENT] key. Use the
key to switch from plus to minus and vice versa.
4. Press the [MENU] key to close the menu.