Kestrel 1000 User manual

INSTRUCTION MANUAL
1000, 2000, 2500 & 2500NV,
3000, 3500 & 3500NV, 3500DT
NKhome.com 800.784.4221
Weather & Environmental Meters

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Your Kestrel Weather & Environmental Meter 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 (i.e., moving your meter from indoors to outdoors) may cause inaccurate readings
of temperature and humidity, as well as all readings that rely on either of these values. Before relying on Kestrel Weather &
Environmental Meter 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 that it has equilibrated to its new environment.
To maximize the accuracy and reliability of your readings:
• Ensure that your Kestrel Meter 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 signicant changes in temperature or humidity (i.e., changing location from
indoors to outdoors).
• Allow a margin of safety for changing conditions and reading errors (2-3% of reading is recommended).
Use extra care and good judgment when referring to your Kestrel Weather & Environmental Meter to
make any decisions regarding safety, health or property protection.
CAUTION
!

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OVERVIEW
Features & Options............................................................... 4
Getting to Know Your Kestrel............................................5
Getting Started .....................................................................6
Setup + Options ....................................................................6
Barometric Pressure & Altitude Adjustment .................7
Measurement Notes ............................................................8
Maintenance & Service........................................................9
Sensor Calibration..............................................................10
Warranty...............................................................................11
NK, manufacturer of Kestrel Weather & Environmental Meters,
is available to answer questions and provide support.
Contact NK by phone: [phone]; fax: [phone];
email: in[email protected]; or web: NKhome.com.

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Measurement Icon Hint Units of Measure 1000 2000 2500 3000 3500 3500DT
Wind Speed SPd mph |kt |B |m/s |ft/min |km/h • • • • • •
Temperature dEG ˚F |˚C • • • • •
Wind Chill chill ˚F |˚C • • • •
Relative Humidity % r.h. % • • •
Heat Stress Index % H.I ˚F |˚C • •
Dewpoint Temp d . P. ˚F |˚C • • •
Barometric Pressure bAro inHg |hPA |mb • • •
Altitude Alt m |ft • • •
Wet Bulb Temp bulb ˚F |˚C • •
Backlit Display • • • • •
Pressure Trend • •
Delta T dElt •
Clock •••
*The NV series features a dim red backlight for use in low light or nighttime situations.
*Only one arrow icon will be displayed on screen to indicate the 3-hour pressure trend.
FEATURES & OPTIONS
The table below shows all Measurement screens available, listed with their
corresponding screen icon and “Hint” abbreviation.

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3000
Nielsen Kellerman
www.nkhome.com
[email protected]
610.447.1555
US Patents
5,783,753
5,939,645
REPLACEABLE
IMPELLER
PRESSURE
SENSOR
SERIAL
NUMBER
NAVIGATION
BUTTONS
POWER/BACKLIGHT
BUTTON
(Backlight N/A on K1000)
TEMPERATURE
THERMISTOR
(N/A on K1000)
FRONT
BATTERY DOOR:
CR2032 COIN CELL
BACK
*All Kestrel Meters with temperature measurement allow you to measure air, water and snow temperature.
HUMIDITY
SENSOR
GETTING TO KNOW YOUR KESTREL

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Turning ON and OFFxx
• Press to turn on.
• Hold for 3 seconds to turn o.
The Kestrel Meter will automatically turn o if no buttons
have been pressed for 45 minutes.
Select Measurement Mode
• Use or to access each Measurement screen
• The instantaneous Measurement value will be
displayed on each screen and updated once per
second.
Each Measurement screen will ash a brief “Hint” to clarify
which Measurement is being displayed. Note: Hints are not
displayed in the Kestrel 1000.
The Measurement’s icons and units of measure will be
displayed in the lower line of the screen.
75.2
°F
°F
Temperature “Hint”
ashes before
Temperature
Measurement Screen
Select the Unit of Measure
• Select the unit of measure. While holding ,
press to scroll through the available units
of measure for that measurement.
Adjust the Clock
*This applies to the 2500, 2500NV, 3500, 3500NV and 3500DT.
• Adjust the clock. Simultaneously press and
to access clock setting. While the time is
blinking, press or to change the time.
Hold either button down to adjust quickly.
Simultaneously press and to exit clock
setting.
GETTING STARTED SETUP + OPTIONS

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SETTING REFERENCE BAROMETRIC PRESSURE &
ALTITUDE: KESTREL 2500 & KESTREL 3500 ONLY
The Kestrel Meter measures “station pressure,” which changes
in response to both changes in altitude and changes in atmo-
sphere. Barometric pressure is a measurement of the air pressure
adjusted to sea level. To obtain accurate barometric pressure
and altitude readings, you must rst enter EITHER your loca-
tion’s current barometric pressure OR your current altitude.
*Station pressure is displayed if the reference altitude is set to zero.
Starting with Known Altitude for your Location
• Use or to highlight the “BARO” screen.
• Press and simultaneously until the
word “REF” starts blinking on screen.
• Use or to adjust the value to the correct
known Altitude.
• Press and simultaneously to exit the
reference setting mode.
After the Altitude reference is set, place the unit on a table
and allow it to stabilize. The accurate Barometric Pressure
reading will then be displayed on screen.
Note the correct barometric pressure reading
above and use this measurement to set the
Altitude:
• Use or to highlight the “Altitude”
screen.
• Press and simultaneously until the
word “REF” starts blinking on screen.
• Use or to adjust the value to the baro-
metric pressure measurement noted above.
• Press and simultaneously again to exit
the setting mode.
Starting with Known Barometric Pressure for
your Location
• Use or to highlight the “Altitude”
screen.
• Press and simultaneously until the
word “REF” starts blinking on screen.
• Use or to adjust the reference value to
the correct known Barometric Pressure.
• Press and simultaneously again to exit
the setting mode.
After the Pressure reference is set, place the unit on a table
and allow it to stabilize. The accurate Altitude reading will then
be displayed on screen.
Note the correct altitude reading above and use
this to set the Barometric Pressure:
• Use or to highlight the “BARO” screen.
• Press and simultaneously until the
word “REF” starts blinking on screen.
• Use or to adjust the reference value to
the correct known Altitude.
• Press and simultaneously again to exit
the setting mode.
Once these steps are complete, both screens will
display accurate readings.
*Be sure to adjust your reference measurements when you change
your location for altitude and/or barometric pressure or when there
has been dramatic change in weather conditions.
BAROMETRIC PRESSURE & ALTITUDE ADJUSTMENT

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Max/Avg Function
To view the maximum wind gust recorded, press
or until you see “MAX” appear at bottom
of screen. Press again to view average wind gust.
“AVG” will appear at bottom of screen. Both
Max and Average are reset each time the unit is
powered down. To restart averaging, simply turn
the unit o and back on again.
Hold Mode
Hold Mode can be useful for taking measurements when you
are unable to view the display.
• Hold down , then press .
• The word“HOLD”will blink on each screen and
all values will stop measuring and freeze in
memory.
• Use or to view each Measurement
screen in Hold Mode.
• To exit Hold Mode, hold down , then press
again.
Backlight*
• Press to activate the backlight for 10 seconds.
• Press again to manually deactivate the back-
light before 10 seconds expire.
*The Kestrel 1000 Meter does NOT oer a backlight.
MEASUREMENTS
Barometric Pressure Trend
: indicates pressure is rising quickly (> +0.18 inHg) in 3 hours
: indicates pressure is rising (within +0.06 and +0.18 inHg)
: indicates pressure is stable (remains between -0.06 and +0.06
inHg)
: indicates pressure is dropping (within -0.06 and -0.18 inHg)
: indicates pressure is falling quickly (> -0.18 inHg)
Select Units of Measure
• Use or to scroll to the desired
Measurement screen.
• Hold down , then press to set the desired
Units of Measure for the Measurement.
Water and Snow Temperature
The Kestrel Meter may also be used to measure
the temperature of water and snow. Submerge
the thermistor portion (curly exposed wire in win-
dow next to impeller) in water or snow to get an
accurate reading. Kestrel Meters are completely
waterproof, oat and can be safely submerged in
water according to IP-67 standards (up to 1 meter
for a maximum of 30 minutes).
MEASUREMENT NOTES

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Replacing the Battery
When your display becomes dim or disappears, you
need to change the battery.
Use a US nickel or similar coin to twist open the
battery compartment.
Replace battery with a new, clean CR2032 coin-cell
battery, with positive side (+) facing up.
CR2032 batteries are available in most stores that
sell batteries.
When replacing the battery door, be sure to keep the black
rubber o-ring seated in the groove on the case back.
MAINTENANCE & SERVICE ADDENDUM
CR2032 batteries contain lithium, a toxic substance. Ingestion may cause serious injury
or death. Keep battery out of the reach of children. If swallowed, immediately seek medi-
cal help. Have doctor phone 24-hour hotline at [phone], call collect if necessary.
Dispose of batteries properly and according to local regulations. Do not puncture or burn
batteries. If the battery compartment does not close securely, stop using the product and
keep it away from children.
CAUTION
!

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Impeller
The Kestrel impeller calibration drift is less than
1% after 100 hours of use at 16 MPH | 7 m/s. Drift
increases with higher-speed use. For most users,
the impeller will provide accurate wind speed/air
ow readings for years if not physically damaged.
However, if your application requires extremely
high precision or if you perform frequent high-
speed readings, we recommend you replace your
impeller at one-year intervals. Every replacement
impeller is supplied with a certicate of confor-
mity and restores your Kestrel’s calibration upon
installation.
Temperature Sensor (Kestrel 2000 and higher)
The Kestrel temperature sensor exhibits virtu-
ally zero drift over time and generally does not
require recalibration for accurate performance
during the life of the product. If your industry or
application requires calibration, please contact
NK or a certied calibration lab for options and
pricing.
Humidity Sensor (Kestrel 3000 and higher)
The Kestrel humidity sensor calibration drift may
be up to +/- 2% over 24 months. For high-preci-
sion applications, we recommend recalibration
at 24-month intervals. If you require calibration,
please contact NK or a certied calibration lab
for options and pricing. The humidity sensor may
also be recalibrated in the eld using a Kestrel Hu-
midity Calibration Kit (NK PN-0802). Instructions
for running the recalibration routine are provided
with the Humidity Calibration Kit and may also be
found at www.nkhome.com/support/kestrel-
support/manuals-and-downloads.
Pressure Sensor (Kestrel 2500 & 3500)
The Kestrel pressure sensor drift may be up to 1
mbar over 12 months. For high-precision applica-
tions, we recommend recalibration at 12-month
intervals. If you require calibration, please contact
NK or a certied calibration lab for options and
pricing. The pressure sensor may also be recali-
brated in the eld with reference to a known-
accurate and calibrated pressure standard. We
do not recommend simply recalibrating to a local
weather station as this may not be accurate for
your location. Instructions for recalibrating the
pressure sensor may be found at www.nkhome.
com/support/kestrel-support/manuals-and-
downloads.
SENSOR CALIBRATION

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Your Kestrel Weather & Environmental Meter is warrantied to be free of defects in materials and workmanship
for a period of FIVE YEARS from the date of its rst consumer purchase. NK will repair or replace any defec-
tive meter or part when notied within the warranty period, and will return the meter via domestic ground
shipping or NK’s choice of method of international shipping at no charge. The following are excluded from
warranty coverage: damage due to improper use or neglect (including battery corrosion); damage caused
by severe or excessive impact, crushing or mechanical harm; modications or attempted repairs by someone
other than an authorized NK repair agent; impeller failure not caused by a manufacturing defect; normal
usage wear; damage caused by failed batteries; and accuracy issues resolvable by recalibration. If no warranty
registration or proof of purchase is provided, the warranty period will be measured from the meter’s date of
manufacture.
Except for the warranties set forth herein, NK disclaims all other warranties, expressed, implied or stat-
utory, including, but not limited to, the implied warranties of merchantability or tness for a particular
purpose. Any implied warranties that may be imposed by applicable law are limited to the term of this
warranty. In no event shall NK be liable for any incidental, special or consequential damages, including,
but not limited to, loss of business, loss of prots, loss of data or use, whether in an action in contract or
tort or based on a warranty, arising out of or in connection with the use or performance of an NK prod-
uct, even if NK has been advised of the possibility of such damages. You agree that
repair, and (upon availability) replacement, as applicable, is your sole and exclusive
remedy with respect to any breach of the NK Limited Warranty set forth herein.
All product liability and warranty options are governed exclusively by the laws of the
Commonwealth of Pennsylvania.
WARRANTY CERTIFICATE
5YEAR LIMITED PRODUCT WARRANTY

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Kestrel® Weather & Environmental Meters are
designed & manufactured in the U.S.A.
NIELSEN-KELLERMAN
21 Creek Circle, Boothwyn, PA 19061
Phone: [phone]
Fax: [phone]
Web: NKhome.com
Email: [e-mail]
Please register your Kestrel Meter at NKhome.com 319012_3_15.01.28