Extech Instruments WTH600-E, Руководство пользователя

Страница: 13 / 21

EU/UK Version
13
WTH600-E-en-GB_v1.0 4/18
9. WIND SPEED / DIRECTION
Read the Wind Direction
Select the Wind Display mode
Press [WIND] button to toggle between:
AVERAGE The AVERAGE wind speed will display the average of all wind speed numbers recorded
in the previous 30 seconds
GUST The GUST wind speed will display the highest wind speed recorded from last reading
The wind level provides a quick reference and is indicated by a series of text icons:
Select Wind Speed Units
1. Press and hold [WIND] button for 2 seconds to enter unit setting mode.
2. Use the [UP] [DOWN] buttons to change the unit between
mph (miles per hour) / m/s (meter
per second) / km/h (kilometer per hour) / knots .
3. Press [WIND] button to confirm and exit.
10. BEAUFORT SCALE
Beaufort scale is an international scale of wind velocities from 0 (calm) to 12 (Hurricane force).
Beaufort no. Description Wind speed Land conditions
0 Calm < 1 km/h Calm. Smoke rises vertically.
< 1 mph
< 1 knot
< 0.3 m/s
1 Light air 1.1 5.5 km/h Smoke drift indicates wind direction. Leaves and wind
vanes are stationary.
1 3 mph
1 3 knots
0.3 1.5 m/s
2 Light breeze 5.6 11 km/h Wind felt on exposed skin. Leaves rustle. Wind vanes
begin to move.
4 7 mph
4 6 knots
1.6 3.4 m/s
3 Gentle breeze 12 19 km/h Leaves and small twigs constantly moving, light flags
www. .com
information@itm.com 1.800.561.8187