Operation Manual

English

1 Use the stopwatch to determine how

many seconds it takes to go 1 km or

1 mile.

2 Tachymeter scale indicated by

STOPWATCH second hand gives

the average speed per hour.

TACHYMETER

[for models with tachymeter scale on the dial]

To measure the hourly average speed of a vehicle

[ Ex. 1 ]

▲

Tachymeter

scale: “90”

“90” (tachymeter scale figure) x

1 (km or mile) = 90 km/h or mph

Tachymeter scale can be used only when the time required is less than 60 seconds.

Ex. 2: If the measuring distance is extended to 2 km or miles or shortened to

0.5 km or miles and STOPWATCH second hand indicates “90” on

tachymeter scale:

STOPWATCH

second hand:

40 seconds