3
3
IMPELLER Sapphire jewel
bearings on a user-
replaceable impeller.
IMPELLER COVER Swivel
cover protects impeller
when not in use.
DATA UPLOAD OPTICAL
COUPLER Software and
serial port interface sold
separately.
BATTERY DOOR Sealed
with o-ring to keep
product watertight.
TEMPERATURE SENSOR
Hermetically sealed precision
thermistor coiled to isolate
from case temperature.
HUMIDITY SENSOR Capacitive
sensor with secondary
thermistor to improve
accuracy and response.
SERIAL NUMBER
PRESSURE SENSOR Monolithic
silicon piezoresistive sensor.
Do NOT insert any objects
into this hole.
AAA BATTERIES
BACK
1
1
Revised 07/08
Instruction Manual for
Kestrel 4200 Pocket Air Flow Tracker
4200
Pocket Air FlowTracker
with Backlight
In a hurry?
Be sure to read pages
5-7 to ensure that
your Kestrel is setup
properly!
www.kestrelweather.com 800.784.4221
4
Kestrel
®
4200 Pocket Air Flow
®
Tracker
TABLE OF CONTENTS
GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
NAVIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SPECIAL FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
MAIN SETUP MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
APPLICATION EXAMPLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
MEMORY CAPABILITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DEFAULT SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
FREQUENTLY ASKED QUESTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
CUSTOMER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Congratulations on the purchase of your Kestrel 4200 Pocket Air Flow Tracker! The Kestrel 4200 is
our newest and most comprehensive HVAC-specifi c instrument. It not only measures EVERY major
environmental condition easily, accurately and right in the palm of your hand, but now also automatically
calculates Volume Air Flow (CFM) and Humidity Ratio (grains).
While the Kestrel 4200 is user-friendly and simple to use, reading the instruction manual is recommended in
order to use the Kestrel 4200 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.nkhome.com.
2
Kestrel
®
4200 Pocket Air Flow
®
Tracker
BACKLIGHT BUTTON
Press to activate
backlight for 1 minute.
MODE BUTTONS Press
to change mode of
measurements: Current,
Min/Max/Avg, Chart.
COMMAND BUTTON
In Chart Screens, press
to view data points. In
Setup Menus, press to
make selection.
MANUAL MEMORY
BUTTON Press to manually
store current conditions to
memory.
MEASUREMENT BUTTONS
Press to scroll between
screens: Date/Time,
Measurements, User
Defi ned Screens
POWER/SETUP BUTTON
Hold to turn power on or
off . Press to enter and exit
Main Setup Menu.
FRONT
