Raymarine DSM250 Owner's Handbook Manual page 77

Chapter 5: Basic Display Controls
➤
RANGE
RANGE
AUTO MAN
Table 5-2: Range and Shift Values
Feet
80 20
100 25
150 50
200 50
250 50
300 100
400 100
600 200
800 200
1000 250
1500 500
2000 500
2500 500
3000 1000
875
1
3500
4000 1000
4500 1500
5000 1250
1
Depths greater than 3000 ft (1000 m) require a high performance transducer
To adjust the range and shift values:
1. Press RANGE, this sets adjustment to manual and the range soft
keys are displayed. The range adjusts up or down depending on
the direction pressed.
2. Use the RANGE key to adjust the range: press the up arrow to
select a shallower range, press the down arrow to select a deeper
range.
3. If desired, press the RANGE AUTO MAN soft key to select AUTO
range.
AUTO range is indicated by the letter R in the status bar.
Fathoms
20 5
25 5
30 10
40 10
50 10
60 20
80 20
100 25
150 50
200 50
250 50
300 100
400 100
500 100
600 150
700 175
750 250
850 170
Meters
30 10
40 10
50 10
60 20
80 20
100 25
150 50
200 50
300 100
400 100
500 100
600 200
800 200
1000 250
1200 300
1400 350
1500 500
1700 425
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