Kestrel 4000 Series Instruction Manual
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NKhome.com
AVAILABLE WITH
WIRELESS DATA TRANSFER
4000 Series Pocket Weather Trackers
Instruction Manual
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SETUP & FUNCTIONS
Precautions ............................................................................ 2
Features & Options .............................................................. 4
Getting to Know Your Kestrel ............................................ 5
Getting Started .................................................................... 6
Battery Installation ..........................................................6
Turning ON and OFF ........................................................6
Setup & Options ................................................................... 6
Main Setup Menu ............................................................6
Date & Time Setup ........................................................... 6
System .................................................................................6
Memory Options .............................................................. 7
Measurements ..................................................................8
Units ....................................................................................8
User Screens....................................................................... 8
Screen Navigation ................................................................9
Measurement Screens ..................................................... 9
Measurement Modes ...................................................... 9
Max / Avg Functions ........................................................ 9
Backlight ............................................................................9
Barometric Pressure & Altitude Setup ............................10
BLUETOOTH® Setup* ..........................................................11
Impeller Replacement .......................................................11
SPECIAL SETUP (Kestrel 4500 & Specialty Models)
Kestrel 4500 & Kestrel 4500 with HORUS ...................... 13
Digital Compass Calibration .......................................13
Measuring Direction ......................................................14
Measuring Headwind/Tailwind & Crosswind ..........14
Specialty Kestrels ................................................................15
Kestrel 4200 Pocket Air Flow Tracker ...............................15
Kestrel 4250 Racing Weather Tracker ..............................15
Kestrel 4300 Construction Weather Tracker ...................16
CUSTOMER SUPPORT
Maintenance & Services ....................................................17
Accessories...........................................................................18
5-Year Limited Product Warranty.....................................19
OVERVIE W
*for BLUETOOTH®-enabled models ONLY
Contact NK by phone: 610.447.1555; fax: 610.447.1577;
email: info@NKhome.com; or web: NKhome.com
To maximize the accuracy and reliability of your readings:
• Ensure that your Kestrel Tracker is in good repair and within factory calibration.
• Take readings frequently and carefully according to the guidelines above.
• Allow your meter’s readings to stabilize after signicant changes in temperature or humidity (ie changing location from indoors to outdoors).
• Allow a margin of safety for changing conditions and reading errors (2-3% of reading is recommended).
To reduce the risk of injury or death to persons, read and follow these guidelin
es!
• Know yourself and the individuals and items you are responsible for.
• Where appropriate, seek the guidance of a medical professional.
• Know what to do in the event of heat illness.
• Be prepared with supplies to treat heat illness.
• Have and practice a heat illness action plan.
CAUTION
!
Your Kestrel Weather Tracker is an environmental meter, not a medical device. It is only one source of
information and must be employed with care and good judgment.
WARNING
!
Your Kestrel brand Weather Tracker is designed to provide accurate measurement of current conditions
only. Depending on your location and environment, conditions may change rapidly.
Rapid temperature and humidity changes (ie moving your meter from indoors to outdoors) may cause inaccurate readings of temperature and humidity
as well as all readings which rely on either of these values. Before relying on a Kestrel Weather Weather Tracker readings, use care to either a) force air ow
over the sensors by waving or slinging your meter through the air; or b) wait until your unit’s readings have stabilized, indicating it has equilibrated to its
new environment.
Use extra care and good judgment when referring to your Kestrel Weather Tracker to make any
decisions regarding safety, health or property protection.
The Heat Stress, Wind Chill and Thermal Work Limit indices are published indices developed by the National Weather Service to provide decision guidance
based on average human physiological response. Certain individuals, animals, equipment or property may be more susceptible to harm relating to
environmental conditions, requiring additional precautions. For example, very young or elderly individuals, individuals with asthma or sickling trait, and
individuals who have not become acclimated to hot conditions are likely to be more prone to heat illness, heat exhaustion, heat stroke or death.
NK, manufacturer of Kestrel Pocket Weather Trackers,
is available to answer questions and provide support.
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Measurement Icon Units of Measure 4000 4200 4250 4300 4400 4500 4500 w/ Horus
Wind Speed | Air Speed mph | fpm | Bft | m/s | km/h | kt • • • • • • •
Volume Air Flow (CFM) Cfm | M3/h | M3/m | M3/s | L/s •
Wind Direction Cardinal Points, Degrees • •
Crosswind Calculation mph | fpm | Bft | m/s | km/h | kt • •
Headwind | Tailwind mph | fpm | Bft | m/s | km/h | kt • •
Temperature* ˚F | ˚C • • • • • • •
Wind Chill ˚F | ˚C • • • • • •
Relative Humidity Gpp | G/kg • • • • • • •
Heat Stress Index ˚F | ˚C • • • • • •
Dewpoint Temp ˚F | ˚C • • • • • • •
Humidity Ratio
HUM
RATIO
Gpp | G/kg • •
Evaporation Rate lb/ft2/hr | kg/m2/hr •
Relative Air Density lb/ft3 | kg/m
3
•
Barometric Pressure inHg | hPA | psi | mb • • • • • • •
Absolute Pressure inHg | hPA | psi | mb • •
Altitude m | ft • • • • • • •
Wet Bulb Temp ˚F | ˚C • • • • • •
Density Altitude m | ft • • • • • • •
Pressure Trend • • • • • •
Backlit Display • • • • • • •
Data Storage Points 4000 3200 3200 3600 2300 2900 2500
BLUETOOTH®
NV Backlight •
Wet Bulb Globe Temp (WBGT) ˚F | ˚C •
Thermal Work Limit (TWL) w/m2 •
Naturally Aspirated Wet Bulb Temp ˚F | ˚C •
Globe Temp ˚F | ˚C •
Mean Radiant Temp ˚F | ˚C •
Standard • | Optional
FRONT
BACK
DATA UPLOAD
OPTICAL COUPLER
SERIAL NUMBER
AAA BATTERIES (2)
AMBIENT
TEMPERATURE
SENSOR
WIDE RANGE
PRESSURE SENSOR
STABILIZING BATTERY
ORIENTATION SHIM
Kestrel 4500s & HORUS
BALLISTICS Versions Only
GETTI NG TO KNOW YOUR KESTREL
MANUAL MEMORY
BUTTON
POWER / SETUP
BUTTON
BACKLIGHT
BUTTON
NAVIGATION
BUTTONS
SELECT / EXIT
BUTTON
HUMIDITY
SENSOR
BLACK GLOBE
SENSOR
Kestrel 4400 Only
REPLACEABLE
IMPELLER
Even when the Kestrel display is o, the unit will still
automatically collect and store data at the dened rate
(see “Memory Options” ). To completely power down the
unit, you must remove the batteries (and lose time / date
and other settings)
* All Kestrel Trackers with temperature measurement allow
you to measure air, water, and snow temperature.
FEATURES & OPT IONS
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Humidity Cal
Recalibration of this sensor is not recommended without speaking to
an NK technician. Full humidity calibration instructions are provided
with the Kestrel RH Calibration Kits. The unit may also be returned to
NK for calibration.
Visit www.nkhome.com for more information.
Date & Time
• Press to enter the Main Setup Menu.
• Use or to highlight Date & Time.
• Press to enter the Date & Time Screen.
• Press
or to change each value.
Language
Display text can be set to 1 of 5 languages: English, French,
German, Italian, and Spanish.
• Press or to scroll the desired language.
• Press to select the highlighted language.
Restore
This menu contains options for global settings of all units to
metric or imperial, and returning the reference values for the
Alt and Baro screens to default (0 ft, 29.92 inHg).
To change units:
• Press or to scroll to the desired setting and press
or .
To return the reference values for the Baro and Alt screens
to default:
• Scroll to Defaults and press or .
The global units setting option is found on the “Units” sub menu on the
Kestrel 4500 with HORUS Ballistics.
Memory Options
• Press or to scroll to one of these options:
Clear Log Go Press or to clear stored data
(will also clear Min/Max/Avg log).
Reset MMA Go Press or to clear Min/Max/Avg data
(Chart data will remain intact).
Auto Store On Press or to turn “On” (data will
automatically store at Store Rate) or
“O” (data will only store when manually
captured with the button).
Store Rate* 1hr Press or to increase or decrease
frequency at which data is stored (from 2
sec - 12 hr).
Overwrite On Press or to turn “On” (will discard
oldest data point to capture new data
when log is full) or “O” (will not capture
new data when log is full).
Man Store On Press or to turn “On” or “O”
(O will disable button).
* When unit is o, data will continue to be stored unless the 2 sec or 5 sec
Store Rates have been selected.
Data Storage
To manually store data, press the button. The screen will
conrm data storage status.
• Data Stored: veries that data was captured and will
appear on chart.
• Full: indicates overwrite is o and data log is full.
• O: indicates that the Manual Store button has been
disabled.
See Main Setup Menu for more information on memory.
SETUP A ND OPTIONS CO NT.
Battery Installation
• Insert batteries into bottom of Kestrel unit as shown on
battery door.
• Snap door closed.
KESTREL 4500:
AAA batteries have a magnetic signature strong enough
to aect the Kestrel 4500’s compass readings. Please
follow this extra step to ensure the batteries stay in
proper orientation.
Before closing the door, push the plastic shim (provided
with unit) between batteries and place clear ring on end
over positive battery “bump.”
When replacing batteries in the Kestrel 4500, always keep the shim
and re-insert with new batteries as described.
Turning ON and OFF
• Press to turn on the meter.
• Hold for 3 seconds to turn o the meter.
You can also select “O” on the Main Setup Menu options.
Main Setup Menu
• When unit is on, press to access the Main Setup Menu
which is used to customize preferences.
• Press and to scroll through the options.
• Press to select the highlighted option.
Date and Time Setup
• After battery installation, the meter will automatically enter
the Date and Time Setting mode.
• Press and to scroll to each option.
• Press and to adjust each option.
• Press the button to exit to the Main Setup Menu.
System
Contrast, auto shutdown, and calibrations can be
recongured as needed in the System screen.
• Use or to highlight one of the following options:
Contrast
• Press or to increase or decrease the display contrast
from 0 (lightest) to 20 (darkest).
Auto Shutdown
• Press or to set the time at which the display will
automatically shut o after non-use (choose 15 min, 60 min,
or O to de-activate auto shutdown).
Battery life will be shortened if the Auto Shutdown is turned to “O.”
Baro Cal
Recalibration of this sensor is not recommended without speaking to
an NK technician. See “Barometric Pressure & Altitude Setup” section on
page 10 for calibration instructions.
GETTI NG STARTED SETUP A ND OPTIONS
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