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Kestrel

®

 4200 Pocket Air Flow

®

 Tracker

29

Why doesn’t my Kestrel Meter match the local Weather Report?

Obtaining a weather report from a local television station, airport or internet site will give you the weather 

where those instruments are, which is not necessarily the same as where you are. Your Kestrel Meter is 

measuring the conditions right where you are. The nature of microclimates and weather fronts is that they 

are varied, and even locations as close as a mile apart can have different weather readings. You can certainly 

use these weather reporting services for good estimates of what the conditions will be, but for the most 

accurate readings at your particular location, the Kestrel Meter is better.

CUSTOMER SERVICE 

KESTREL POCKET WEATHER METERS  5-YEAR LIMITED WARRANTY

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 ac-

curate, 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 materials and 

workmanship for a period of FIVE YEARS from their date of first consumer purchase. NK 

will 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 interna-

tional 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 me-

chanical 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 merchant-

ability 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 

product, 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 rem-

edy 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.

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. 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 

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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