Kestrel
®
4250 Racing Weather
®
Tracker
5
TABLE OF CONTENTS
GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
NAVIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SPECIAL FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
MAIN SETUP MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
APPLICATION EXAMPLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
MEMORY CAPABILITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
DEFAULT SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
FREQUENTLY ASKED QUESTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
CUSTOMER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Congratulations on the purchase of your Kestrel 4250 Racing Weather Tracker! The Kestrel 4250 is our newest
and most comprehensive Racing-specific instrument. It not only measures EVERY major environmental
condition easily, accurately and right in the palm of your hand, but now also automatically calculates Density
Altitude and Water Grains (Humidity Ratio).
While the Kestrel 4250 is user-friendly and simple to use, reading the instruction manual is recommended in
order to use the Kestrel 4250 to its fullest potential.
NK, manufacturer of Kestrel Pocket Weather Meters, is available to answer questions
and provide support. Contact NK by phone: 610.447.1555, fax: 610.447.1577, email:
[email protected], or web: www.kestrelweather.com.
GETTING STARTED
Pouch and Lanyards
Wrist and neck lanyards and a small pouch have been provided. To install the lanyard,
feed the thin end of the lanyard around the metal post on the battery door (as shown
in diagram). Feed the thick end of the lanyard through the loop on the thin end. Using
tweezers can help.
Battery Installation
Use only AAA batteries. Install batteries as indicated on the battery door. After installing the batteries, the
Kestrel 4250 will automatically start in the Date and Time Setting mode. (See Date and Time Setup below.)
Custom settings and chart data will be saved during a battery change; only the date/time and MMA values
will be lost.
Turning the Kestrel Meter ON and OFF
To turn the Kestrel Meter ON, press the button. To turn the Kestrel Meter OFF, hold the button for two
seconds. Or, press the button, then press the button with the word OFF highlighted. (Note: your unit
will continue to automatically store data when the power is turned off.) When first turned on, the Kestrel
Meter will display a splash screen displaying the model number, the battery indicator, and the code version.
This battery indicator will indicate the percentage of battery life remaining, which is helpful in preventing
unexpected dead batteries.
Date and Time Setup
The first time that you turn on your Kestrel Meter, as well as after a battery change, you will need to set the
date and time. The Introduction Screen will appear for 3 seconds, followed by the Date/
Time Setup Screen. Press the and buttons to scroll through the settings. Press the
and buttons to scroll through the setting options. After entering the date and time,
press the
button to exit the Date/Time Setup. Then press the
button again to exit
the Main Setup Menu.
