Kestrel 4300 (Construction) Instrukcja Użytkownika Pobierz pdf (Strona 13)

Kestrel

4300 Construction Weather Tracker 25

MEMORY CAPABILITIES

Store Rate Total Memory

2 sec 59 minutes, 44 seconds

5 sec 2 hours, 2 min, 20 sec

10 sec 4 hours, 58 min, 40 sec

20 sec 9 hours, 57 min, 20 sec

30 sec 14 hours, 56 min

1 min 1 day, 5 hours, 52 min

2 min 2 days, 11 hours, 44 min

5 min 6 days, 5 hours, 20 min

10 min 12 days, 10 hours, 40 min

20 min 24 days, 21 hours, 20 min

30 min 37 days, 8 hrs

1 hr 74 days, 16 hrs

2 hr 149 days, 8 hrs

5 hr 373 days, 8 hrs

12 hr 896 days

GLOSSARY

The below denitions have been greatly simplied in order to keep this section brief. We strongly

recommend that anyone who wishes to make use of these measurements refer to one of the many

excellent weather references available for a more in-depth denition.

On the internet, visit www.usatoday.com or www.noaa.gov. Or, locate the USA Today publication, The

Weather Book. Please note that any words in a denition printed in italics are themselves dened in this

glossary.

Altitude

The distance above sea level. The Kestrel Meter calculates altitude based on the measured station pressure

and the input barometric pressure - or “reference pressure”.

Barometric Pressure

The air pressure of your location reduced to sea level. Pressure will change as weather systems move into

your location. Falling pressure indicates the arrival of a low pressure system and expected precipitation or

storm conditions. Steady or rising pressure indicates clear weather. A correct altitude must be input for the

Kestrel Meter to display barometric pressure correctly.

Density Altitude

The altitude at which you would be, given the current air density. Often used by pilots in order to determine

how an aircraft will perform. Also of interest to individuals who tune high performance internal combustion

engines, such as racecar engines.

Dewpoint

The temperature to which air must be cooled in order for condensation to occur. The dierence between

dewpoint and temperature is referred to as the “temperature/dew point spread”. A low dewpoint spread

indicates high relative humidity, while a large dewpoint spread indicates dry conditions.

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Kestrel 4300 (Construction) Instrukcja Użytkownika Strona 13