Temp Offset (Advanced); Speed Calibration (Advanced; With Temp/Speed Only) - Humminbird 500 series Operation Manual

Temp Offset will adjust the temperature readout by the amount entered. This
menu choice is available only when in Advanced User Mode (see Setup Menu
Tab: User Mode.)
To change the Temp Offset setting:
1. Make sure you are in Advanced User Mode, then highlight Temp Offset
on the Setup menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Temp
Offset setting. (-10.0 to +10.0 degrees, Default = 0)
Speed Calibration will adjust the speed readout by the percentage entered,
and will appear in the menu if a Temp/Speed Accessory is connected and the
paddlewheel has moved at least once, when the unit is in Advanced User Mode
(see Setup Menu Tab: User Mode.)
To change the Speed Calibration setting:
1. Make sure you are in Advanced User Mode, then highlight Speed
Calibration on the Setup menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Speed
Calibration setting. (-20% to +20%, Default = 0%)
Temp Offset
(Advanced)
Speed Calibration
(Advanced; with Temp/Speed only)
56