Pocket Weather ®Meter - Nielsen
Contents
1. Kestrel 3000 Pocket Weather Meter with Backlight Thank you for purchasing the Kestrel 3000 Pocket Weather Meter This instrument will measure the following environmental conditions e wind speed e wind chill e maximum wind gust e relative humidity e average wind speed e heat stress e temperature air water snow e dewpoint This instrument also features a data hold function a backlight and an automatic power down function Every unit is fully tested at our factory for measurement accuracy and waterproof integrity INSTRUCTION MANUAL Revised 07 23 10 Kestrel 3000 Pocket Weather Meter OPERATION 1 Slide off cover 2 Turn on Press the center button to turn on the unit N 3 Select operating mode Press the right arrow 9 to scroll through the measurements listed below Press the left arrow amp to scroll through the measurements in reverse order The instantaneous measurements will be displayed See Understanding the Measurements section for more information 4 Select the units of measure Press 3 while holding to scroll through the units of measure 5 Hold mode Press while holding to hold the measured value on the display The word HOLD will blink to indicate the Hold Mode Press while holding to exit the Hold Mode This mode can be useful for taking measurements when unable to view the display as within a duct The Max and Avg Wind Speed Modes will co2. ating force which cancel each other The impeller has been calibrated to provide wind speed readings accurate to within at least 3 High Speed Use After numerous hours of sustained operation over 25 M S 49 KT 90 KM H 56 MPH or 4 923 FPM the Kestrel will lose some accuracy due to wear of the pivot and bearings in the impeller Kestrel 3000 Pocket Weather Meter Replacing the Impeller You may recalibrate the wind speed readings by replacing the impeller Press FIRMLY on the sides of the black impeller housing with your thumbs to remove the entire assembly When inserting the new impeller be sure the arrow is facing the display side of the unit and is aligned with the top of the meter Press on the sides of the housing rather than the center Replacing the Impeller Taking Accurate Humidity Heat Stress and Dewpoint Measurements The patented system for measuring relative humidity allows for extremely fast and accurate readings The sensor is located in the large hole on the rear of the unit Even extreme and abrupt changes in the surrounding humidity will be measured within several minutes To test this place your hand around the rear of the unit Within several seconds the humidity will increase dramatically After removing your hand the humidity will quickly begin to decrease Next place your hand near the rear of the unit and wave the unit back and forth The humidity will not change because the air flow is diluting the
3. certificate of calibration We also offer full factory service on every product we manufacture for as long as we make the product and as long after as component availability permits If we can t repair a product we will offer you a brand new replacement under our Customer Care Program even for accidental damage and misuse Kestrel 3000 Pocket Weather Meter ADDITIONAL INFORMATION What is a Kestrel The American Kestrel is the smallest North American falcon Sa Beautiful and highly adaptable it can be found virtually everywhere in North America It is unique among falcons for its ability to both hover at very low speeds and dive at very high speeds Assembled in the USA The Kestrel 3000 is protected by US Patents 5 783 753 5 939 645 and 6 257 079 Nielsen Kellerman reserves the right to change product specifications 2009 Kestrel the Kestrel logo Pocket Wind NK and the NK logo are trademarks of the Nielsen Kellerman Co Need Help Our NK Knowledge Center has answers to many common questions along with tips and tricks for using NK products It s available 24 7 at www nkhome com knowledgecenter For email assistance with the installation or operation of your NK product write techsupport nkhome com For help with an apparent malfunction or to arrange or inquire about a repair write repairs nkhome com Or call 800 784 4221 610 447 1555 outside of the USA Monday to Friday 9 to 5 Reg
4. duct 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 Kestrel 3000 Pocket Weather Meter are governed exclusively by the laws of the Commonwealth of Pennsylvania Your warranty period will be measured from your date of purchase The best way to ensure full warranty coverage is to REGISTER your NK product promptly on our website www kestrelweather com lt http www kestrelweather com gt We keep your registration information strictly confidential and do not sell it share it or use it for anything but product related information bulletins which you may decline receiving If you do not register and cannot provide proof of purchase your warranty period will be measured from our date of manufacture determined by serial number We request that you contact NK if you feel your product is not working properly We can often solve product issues by phone or e mail saving you the time and expense of returning the unit If we require the product to be returned we will issue a Return Authorization to expedite the handling of your warranty claim The Kestrel Pocket Weather Meters are covered by the following patents 5 783 753 5 939 645 6 257 074 and 7 059 170 LIFETIME CUSTOMER CARE WARRANTY NK wants
5. humidity from your hand This example shows the importance of keeping air flow past the sensor while taking a measurement If there is no natural air flow past the sensor wave the unit back and forth It is also reasonable to lay the unit down on a solid surface for several minutes to allow the sensor to adjust Sensors amp Calibration Kestrel Pocket Weather Meters use precision sensors to measure the environment These sensors have all been factory calibrated to NIST traceable standards and are accurate within the stated specifications at the time of manufacture The wind is measured with the patented user replaceable impeller It is mounted on a sapphire bearing that begins to measure readings in the slightest of breezes The patented external temperature sensor is mounted on long coiled leads that help to further isolate the bulb from the case This ensures that the Kestrel is reading the air temperature and not the case temperature may be warmer if the unit was in your pocket or warmed by your hand The patented relative humidity sensor is designed to adjust quickly to abrupt changes in humidity and maintains this accuracy and speed in extremely low humidity conditions The RH sensor is located on the back of the unit and is protected by a membrane DO NOT puncture this membrane It will damage the sensor and require replacement For recalibration of the sensors the unit may be returned to NK for factory calibration The wind and
6. humidity sensors can all also be field calibrated To recalibrate the wind speed simply replace the impeller Visit www nkhome com for information on the RH field calibration kit The temperature sensor does not need to be recalibrated Kestrel 3000 Pocket Weather Meter BEAUFORT SCALE Description The Beaufort Scale is a system for estimating oe Ai wind force without the use of instruments based gt Light Breeze on the visible effects of the wind on the physical 3 Canile Broeze environment The behavior of smoke waves trees 4 Moderate Breeze etc is rated on a 13 point scale The scale was devised 5 Fresh Breeze in 1805 by the British naval Commander Sir Francis 6 Strong Breeze Beaufort 1774 1857 and is still commonly used by Gale ale mariners strong Gde Storm KESTREL POCKET WEATHER METERS Violent Storm WARRANTY Hurricane NK does not believe in disposable electronics We know that Kestrel Meters don t typically lead pampered lives and we design them for years of performance in tough conditions Every Kestrel is designed and manufactured at NK s facility in Boothwyn Pennsylvania to be the accurate reliable weather instrument you need for your application If for any reason you are not satisfied with the performance or operation of your Kestrel meter in the first 30 days you may return it to your place of purchase for a full refund We guarantee every Kestrel Pocket Weather Meter to be free of defects in material
7. ister your Kestrel Pocket Weather Meter online at www kestrelweather com NIELSEN KELLERMAN 21 Creek Circle Boothwyn PA 19061 Phone 610 447 1555 Fax 610 447 1577 Web www kestrelweather com Email kestrel nkhome com
8. ntinue to work as usual Kestrel 3000 Pocket Weather Meter Co 6 Turn on the backlight Press to activate the backlight for 10 seconds If l or are pressed while the backlight is illuminated the backlight will remain illuminated for another 10 seconds Press while the backlight is illuminated to manually turn off the backlight 7 Turn off Hold for 2 seconds to manually turn off the unit The unit will automatically turn off if no buttons have been pressed for 45 minutes Mode Hint Icons Units of Measure Wind Speed SPd m s ft min km h mph kt B Max Gust SPd MAX m s ft min km h mph kt B Avg Speed SPd AVG m s ft min km h mph kt B Temperature dEG C F Wind Chill chill EN C F Humidity r h Heat Stress Index H 4 C F Dewpoint d P GF UNDERSTANDING THE MEASUREMENTS Wind Speed average over the previous three seconds The measurement will be accurate for air flow through the front or rear of the unit Maximum Wind Gust maximum 3 second wind speed since the unit was turned on Average Wind Speed average wind speed since the unit was turned on Temperature instantaneous temperature of the thermistor which is located at the end of the long coiled leads in the open cavity below the impeller The exposed thermistor will respond quickly to changes in temperature when air flows past it For fastest response either hold the unit into the wind or wave the unit side to side f
9. or 15 seconds Readings should be taken in the shade Water and snow temperatures can be taken by hold the unit in the water or snow Wind Chill combination of wind speed and temperature as defined by the US National Weather Service Wind chill is the effective temperature on a human or animal at low temperatures due to wind speed Wind chill readings will be the same as the temperature readings above 45 F or below 3 mph Relative Humidity amount of moisture in the air compared to the amount of moisture the air can hold for the given temperature represented as a percent Because relative humidity is also a function of the temperature the response time will be dependent on the temperature response time see temperature section above Readings should be taken in the shade Kestrel 3000 Pocket Weather Meter Heat Stress Index combination of temperature and humidity as defined by the US National Weather Service Heat stress is the effective temperature on a human or animal at high temperatures due to humidity Heat stress readings will be the same as the temperature readings below 70 F Dewpoint calculated based on temperature and humidity measurements as a measure of moisture content in the air If the dewpoint is very close to the temperature the air is humid If the temperature and dewpoint are the same dew will form If this happens below freezing frost will form MAINTENANCE amp TROUBLESHOOTING Environmental Ever
10. s and workmanship for a period of FIVE YEARS from their date of first consumer purchase NK will 11 repair or replace any defective product or part when notified within the warranty period and will return the product via domestic ground shipping or NK s choice of method of international shipping at no charge The following shall be excluded from warranty coverage damage due to improper use or neglect including corrosion damage caused by severe or excessive impact crushing or mechanical harm modifications or attempted repairs by someone other than an authorized NK Kestrel repair agent impeller failure not caused by a manufacturing defect normal usage wear failed batteries and accuracy issues resolvable by recalibration Recalibration is provided free of charge within thirty 30 days of purchase if necessary Except for the warranties set forth herein NK disclaims all other warranties expressed implied or statutory including but not limited to the implied warranties of merchantability or fitness 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 profits 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 pro
11. y Kestrel Meter is fully waterproof and floats and has passed mil spec drop testing Storing Your Kestrel Avoid storing your Kestrel where it will be exposed to temperatures below 30 C 22 F or above 60 C 176 F for extended periods of time Doing so may cause permanent damage Note that the inside of a car parked in the hot sun can reach very high temperatures Use of the Lanyard and Cover The cover can be captured on the lanyard to avoid loss First remove the cord poplock Then feed the lanyard end through the large opening in the over and out the slot Replace the poplock on the lanyard Replacing the Battery When your display becomes dim or disappears replace the battery Use a large coin to open the battery compartment Use only new CR2032 coin cell batteries available where O watch batteries are sold Wipe the battery clean of any fingerprints and insert the positive pole up angling the battery downward and pressing it firmly into place When replacing the battery door be sure to keep the black rubber o ring seated in the groove on the case back Replacing the Battery Why does the Impeller Appear Imbalanced It is NORMAL for the impeller to oscillate as it comes to a stop It is NOT imbalanced Rather it contains a very small magnet that responds to the earth s magnetic fields This does not affect the accuracy of the wind speed readings because the magnetic field applies both a braking and an acceler
12. you to be an NK customer for life so we take care of you even beyond the terms of the above warranty with our Customer Care Program Trade in any Kestrel Pocket Weather Meter no matter the age or condition and receive a generous discount on the replacement product Our Customer Care Program applies only as long as we manufacture the product 13 CALIBRATIONS CERTIFICATIONS AND SERVICE Every NK product is tested and calibrated before it leaves our factory We guarantee that it will perform within specifications when you receive it Each Kestrel comes with a Certificate of Conformity with the stated specifications for that product on the back If you feel an NK product is not meeting specs when you receive it call us and we ll make sure you are operating it correctly If it still appears that it may be out of spec return it to us within 30 days of purchase and we will test and recalibrate all values at no charge Beyond 30 days we offer reasonably priced tests calibration services and N I S T certified calibrations as well as Kestrel tune ups All of our measurements are traceable to the National Institute of Standards and Technology ensuring the highest level of accuracy Our primary Calibration Standards are sent for calibration in accordance with N I S T requirements and based on a regular schedule Only approved laboratories and N I S T themselves are used for these calibration services Incoming and outgoing data is supplied with the
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