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Kestrel

®

 4200 Pocket Air Flow

®

 Tracker

31

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.

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 Meter 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 Meter 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 

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). Cost of repairs 

and other important information can be found on our website.
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 claim.
Visit www.kestrelweather.com for more information and pricing for these services.
Lifetime Customer Care Warranty 

NK wants 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 (same model only). Our Customer 

Care Program applies only as long as we manufacture the product, and does not cover product upgrades.

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 

[email protected].
For help with an apparent malfunction, or to arrange or inquire about a repair, write 

[email protected].  
Or call 800.784.4221 (610.447.1555 outside of the USA), Monday to Friday, 9 to 5, East Coast Time.

Shop for Kestrel products online at:

1.877.766.5412

www.

KestrelStore

.com

Summary of Contents for Kestrel 4200

Page 1: ...acker 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 Revised 07 28 10 Shop for Kestre...

Page 2: ...to enter and exit Main Setup Menu IMPELLER Zytec V bearings on a user replaceable impeller IMPELLER COVER Swivel cover protects impeller when not in use DATA UPLOAD OPTICAL COUPLER Software and seria...

Page 3: ...rd through the loop on the thin end Using tweezers can help Battery Installation Use only AAA batteries Install batteries as indicated on the battery door After installing the batteries the Kestrel 42...

Page 4: ...hat the cursor will remain at the same date and time If new data is stored while viewing chart data the entire chart will shift left with the new data point charted on the right The cursor will not sh...

Page 5: ...minute Press the button within one minute to deactivate the light manually Airflow The Kestrel Air Flow Tracker will display the volume airflow based on the instantaneous air velocity and cross secti...

Page 6: ...that point the RH value is stable and can be relied upon to be within the accuracy specifications Barometric Pressure and Altitude Adjustment The Kestrel Meter measures station pressure the actual air...

Page 7: ...ou should ignore the values on the BARO screen since the pressure changes will be due to changes in elevation far more than to changes in the weather In general changes in barometric pressure associat...

Page 8: ...Max Avg data is cleared Chart data will remain intact Press or to clear the MMA Auto Store On Off When On data is automatically stored at preset Store Rate When Off data is only stored when manually c...

Page 9: ...etup Menu User Screens The three User Screens can be reconfigured to display the most appropriate information for your application For example if you need to monitor the wind speed humidity and barome...

Page 10: ...ion for instructions Then adjust the calibrating setting on the Baro Cal screen to the known mean sea level barometric pressure If recalibration is desired the unit may also be returned to NK for serv...

Page 11: ...xamine the effect on the environment when employees enter and exit the building HVAC R System Balancing Auto Store Off Store Rate Overwrite Off Man Store On These settings will require you to press th...

Page 12: ...into your location Falling pressure indicates the arrival of a low pressure system and expected precipitation or storm conditions Steady or rising pressure indicates clear weather A correct altitude...

Page 13: ...physiology guides use wet bulb temperature rather than heat index as a measure of the safety of exercise in hot and humid conditions Wind Chill The cooling effect of combining wind and temperature Th...

Page 14: ...ic device and it will display a wind speed Or wave a magnet like a refrigerator magnet back and forth by the Kestrel Meter If the Kestrel Meter is working properly you will register a wind speed readi...

Page 15: ...ue to improper use or neglect including corrosion damage caused by severe or excessive impact crushing or me chanical harm modifications or attempted repairs by someone other than an authorized NK Kes...

Page 16: ...es Incoming and outgoing data is supplied with the 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...

Page 17: ...tion Manual for Kestrel 4200 version 4 29 ALL NIELSEN KELLERMAN 21 Creek Circle Boothwyn PA 19061 Phone 610 447 1555 Fax 610 447 1577 Web www kestrelweather com Email kestrel nkhome com Please registe...

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