National Geographic NG752 SERIES, Instruction Manual, Page: 17 / 28

2.5 TACHOMETER Mode
- Press push button C to switch to
TACHOMETER mode.
- This function calculates the speed
based on parameters set by the
user (miles per hour or kilometers
per hour).
- The TACHOMETER measures the
range of distance from 0.1 to 29.9
(miles or kilometers).
- If the value is too high, an error
message will appear (too great a
distance in too few seconds).
- Press push button B for more than
a second to enter adjust mode. The
unit blinks.
- Press push button A to set miles or
kilometers.
- Press push button B to confirm the
units. The tens place blinks.
- Press push button A to adjust the
tens place.
- Press push button B to confirm
tens place. The ones place blinks.
D
C
A
B
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