Kestrel 1000 User manual

INSTRUCTION MANUAL

1000, 2000, 2500 & 2500NV,

3000, 3500 & 3500NV, 3500DT

NKhome.com 800.784.4221

Weather & Environmental Meters

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

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: 610.447.1555; fax: 610.447.1577;

email: in[email protected]; or web: NKhome.com.

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.

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

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

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

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

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

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 (202) 625-3333, 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

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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