EXT Nmea menu, Setting range | Furuno GP-7000F guide

3.5Calibrating NMEA Depth, Speed and Water Temperature Data

NMEA speed, depth and water temperature data may be corrected from the GP-7000F if they can- not be done from the equipment that outputs the data. Enter a minus value if the actual value is lower than the NMEA data, or a plus value if the actual value is higher than the NMEA data. For example, if the actual water temperature is 20° and the water temperature data output by the sen- sor is 17°, enter +3(°).

1.Press the [MENU] key to show the menu bar.

2.Rotate the [ENTER] knob to choose ADVANCED from the menu bar and then push the [ENTER] knob.

3.Rotate the [ENTER] knob to choose EXT NMEA and then push the [ENTER] knob.


	DRAFT SETUP	+00.0 Ft
	SPEED CALIBRATION +00 %
	TEMP CALIBRATION	+00.00°F

EXT NMEA menu

4.Rotate the [ENTER] knob to choose appropriate item.

DRAFT SETUP: Enter ship's draft to get NMEA depth from sea surface (instead of trans- ducer). To get depth from hull bottom, measure distance between bottom of transducer and hull bottom and enter that value with a minus.

SPEED CALIBRATION: Find correct speed from known source and enter offset to correct NMEA speed indication.

TEMP CALIBRATION: Find correct water temperature from known source and enter offset to correct NMEA water temperature indication.

5.Push the [ENTER] knob. The cursor is selecting the plus sign (or minus sign). If it is necessary to switch from plus to minus or vice versa, rotate the [ENTER] knob to choose plus or minus and then push the [ENTER] knob. If not necessary, go to step 6.

6.Push the [ENTER] knob, rotate the [ENTER] knob to set digit and then push the [ENTER] knob. To clear a line of data, press the [CLR FLD] soft key, which is the third key from the left of the keys below the screen.

Setting range

Draft setup: -20 - +39.9 (ft)

Speed calibration: -50 - +50 (%)

Temp calibration: -50 - +50 (°F)

7.Set other digits as you did in step 6.

8.Press the [SAVE] soft key, which is the fourth key from the left of the keys below the screen.

9.If necessary, repeat step 4-8 to choose and set another calibration item.

10.Press the [MENU] key to close all open windows and erase the menu bar.