Kestrel 4300 Construction Weather Tracker; Maintenance.&.Services - Kestrel 4000 Series Instruction Manual

KESTREL 4300
CONSTRUCTION WEATHER TRACKER:
Evaporation Rate
The Kestrel 4300 will display the Evaporation Rate, as
defined in ACI 308, based on instantaneous Wind Speed,
Relative Humidity, Ambient Temperature and Concrete
Temperature readings.
E vaporation is a guide to how quickly concrete will lose moisture in
their pour location conditions.
To measure Evaporation Rate:
• First, use a separate measuring device to obtain the
Concrete Temperature.
• Use or to scroll to the Evaporation Rate screen,
then press .
• Use or to enter the Concrete Temperature you
obtained.
• Press to exit the Setting Screen, then press to enter
the Averaging Screen.
M ake sure the Kestrel 4300 is shaded while it takes the reading.
Failure to shade the unit may cause inaccurate readings that will
not meet ACI 308 criteria.
• Position the Kestrel 20 inches above the concrete and
facing the wind, and press to begin readings.
• Count 6-10 seconds, then press again to stop
collection.
• The screen will display Avg/Min Evaporation Rate
readings.
• To clear data, press .
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MAINTENANCE & SERVICES
Batteries
Kestrel Pocket Weather Trackers require 2 AAA batteries.
Average battery life is 300 hours based on typical use.
*For the Kestrel 4500, it is important to re-insert the shim along with the
new batteries then recalibrate the digital compass to ensure
correct wind direction readings.
W hen using the Kestrel meter in extremely cold weather, it is
recommended to use lithium batteries for optimal performance.
Maintenance & Storage
To avoid scratching the window, store the Kestrel Tracker in
the soft pouch.
Software
To download the Kestrel Communicator software visit:
www.nkhome.com/kestrel-software.
Calibrations, Certifications & Service
Every NK product is tested and calibrated before it
leaves our factory. We warrant that it will perform within
specifications when you receive it. The unit may be returned
to NK for factory calibration, or you can contact NK for field
calibration instructions (RH Calibration Kits are available on
our website).
Each Kestrel Meter comes with a Certificate of Conformity,
stating the specifications for that product.
If you are concerned your Kestrel is not performing within
specifications upon receipt, please contact us and we will
review your concerns. If necessary, we will test or recalibrate
any unit within 30 days of purchase.
Beyond 30 days, we offer reasonably-priced tests, calibration
services, NIST-traceable calibrations, and full Kestrel Meter
tune-ups.
We offer full factory service on every product we manufac-
ture for as long as we make the product (and as long after
as component availability permits). If we cannot repair a
product, we will offer you a replacement under our Loyalty
Discount* (even for accidental damage and misuse).
Please 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, you can
obtain a Return Authorization to expedite the handling of
your return.
Made in the USA
Your Kestrel Pocket Weather Meter was
designed, developed and built in the USA by
Nielsen-Kellerman Co. of US and imported
components. We are a lean manufacturing
enterprise committed to continuous improvement
of our products, processes, people and partners.
We strive to conduct our business in a sustainable
manner and minimize harm to the environment
by actively implementing company-wide plans to
conserve energy, reduce waste, and recycle.
This device complies with Part 15 of the FCC Rules. Opera-
tion is subject to the following two conditions: (1) this device
may not cause harmful interference, and (2) this device must
accept any interference received, including interference that
may cause undesired operation.
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