Kestrel 1000 User manual

5) Take a Measurement: Simply point
the unit into the air flow you wish to
measure.
3) Select Operating Mode: Press and release [MODE] to change the
operating mode. You can select a different operating mode at any time.
MAX
Maximum
3-Second
Gust Since
Power On
AV
Average Wind
Speed Since
Power On
Current
Wind Speed
4) Select Measurement Scale: Hold down [ON] while pressing [MODE] to
change the measurement scale. You can select a different scale at any time.
KT
Knots
M/S
Meters
per
Second
MPH
Miles per
Hour
KM/H
Kilometers
per Hour
FPM
Feet per
Minute
(x10)
.F
Beaufort
Force
OPERATION
1) Slide off Cover. 2) Turn On: Press [ON] to turn on unit.
SPECIFICATIONS
Wind Speed Functions
Modes: Moving 3-second average ( ), maximum 3-second gust since power
on (MAX) and average since power on (AVG).
Units: Knots (KT), meters per second (M/S),kilometers per hour (KM/H),miles per
hour (MPH), feet per minute (FPM) and Beaufort force (“.F”).
On-Axis Accuracy: greater of ± 3% of reading or ± least significant digit.
Off-Axis Response: -1% @ 5°, -2% @ 10°, -3% @ 15°.
Accuracy Degradation: (loss of accuracy due to impeller bearing wear) < 2%
after 100 hours use at 7 M/S [14 KT, 25 KM/H,16 MPH, 1400 FPM].
Minimum Speed: 0.3 M/S [0.6 KT, 1.0 KM/H, 0.7 MPH, 59.0 FPM].
Maximum Speed: 40 M/S [78 KT, 144 KM/H, 89 MPH]; 1,990 FPM (display limit).
Display
Type: Reflective 2 ½ digit LCD.
Digit Height: 10 mm (0.4 in.).
Update: 1 second.
Range and Resolution: Depends on measurement scale selected – see chart:
Display Temperature Limitations: Normal operation from -15°C to 60°C [-4°F
to 140°F]. Below -15°C [-4°F], accurate readings may be taken by keeping the
unit warmer than -15°C [4°F] and exposing it for the minimum time necessary
to take a reading (less than one minute).
Automatic Shutdown: After 30 minutes of no button presses.
Environmental
Sealing: Electronics enclosure IP67 – water resistant to 1 m.[3 ft.]. Floats.
Shock: Drop tested to 2 m. [6 ft.].
Storage Temperature: Prolonged exposure to temperatures below -20°C [-4°F]
or above 80°C [176°F] may cause permanent damage.
Physical
Buttons: Two sealed tactile rubber buttons control all functions.
Battery: User-replaceable CR2032 coin cell.Typical life,400 hrs.
Impeller: 25 mm [1 in] diameter,sapphire bearings,light weight.User-replaceable
impeller/housing assembly.
Case: Slip-on case prevents damage to display and moving parts.
Dimensions: 122 x 42 x 14 mm. [4.8 x 1.7 x 0.6 in]; case, 117 x 46 x 19 mm. [4.6 x
1.8 x 0.7 in.]; lanyard, 0.5 m. [10 in.].
Weight: Unit, 43 g. [1.5 oz.]; slip-on case, 23 g. [0.8 oz.].
Scale Range Resolution
KT,M/S,KM/H 0.0-19.9 0.1
MPH, °C & °F 20-199 1
FPM 0-1,990 10
The Kestrel turns itself off
automatically after 30 minutes
of no button presses.
Kestrel®1000
Pocket Wind™Meter
Current, Maximum and Average Wind Speed
NK

MAINTENANCE & TROUBLESHOOTING
StoringYour Kestrel
Avoid storing your Kestrel where it will be exposed to temperatures below -20°C
[-4°F] or above 80°C [176°F] for extended periods of time. Doing so may
permanently damage the LCD, electronics, battery or enclosure. (Note that the
inside of a car parked in the hot sun can reach very high temperatures.) If the
temperature of the actual LCD of your unit exceeds 70° C [158° F], it will
temporarily become solid black until it cools down to below this temperature.
Use of the Lanyard and Cover
Your Kestrel is shipped with the slip-on cover captivated by the lanyard to prevent
loss. If you prefer to be able to remove the cover entirely, open the lanyard end
cap with a small screw driver,then remove the slip-lock. Slide the cover completely
off the lanyard,then reassemble the slip-lock and lanyard end cap as before.
Replacing the Battery
When your display grows dim or blank, replace the battery. Use a large coin to
open the battery compartment. Insert a new CR2032 coin cell (available where
watch batteries are sold), positive (+) pole up.
When replacing the battery door, be sure to keep the black rubber o-ring
seated in the groove on the case back.
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
which responds to the earth’s magnetic
field. This does not affect the accuracy of
the windspeed readings because the
magnetic field applies both a braking and an accelerating force which
cancel each other. The impeller has been calibrated to be accurate to within
at least ± 3%.
High Speed Use
After several hours of sustained operation over 25 M/S (~49 KT,90 KM/H, 56 MPH
or 4,923 FPM), your Kestrel will lose some accuracy due to wear of the sapphire
bearings in the impeller assembly. If you require accurate high AND low speed
measurements, we recommend a second impeller.
Troubleshooting a
Damaged
Impeller
If the impeller
rotates, but only “0” or “—”
shows on the display, the impeller may
no longer be sending a signal to the unit. Test the unit by turning it on and
placing it near an electromagnetic source (i.e. back of computer monitor or
TV). If the display shows any number other than “0” or “—”, the unit does not
need to be returned but does need a new impeller assembly. Contact Nielsen-
Kellerman or your place of purchase to order a replacement.
Replacing the Impeller
Press FIRMLY on the sides of the black
impeller housing with your thumbs to
remove the entire housing. 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.
Rev’d 16 July 02
WARRANTY & SERVICE
Warranty
Your Kestrel is covered by a full parts and labor warranty for one year from your
date of purchase. The provisions of this warranty do not apply to: a) batteries,
whether contained in a unit or sold individually; b) units which have been subjected
to misuse,negligence,accident or improper maintenance or application; or c) units
which have been repaired or altered by a party other than Nielsen-Kellerman’s
employees or agents without Nielsen-Kellerman’s prior written consent.
Parts and Service
To order replacement parts for your Kestrel or obtain warranty service please
contact Nielsen-Kellerman or your original place of purchase.
ADDITIONAL INFORMATION
What is a“Kestrel”? The American Kestrel is the smallest North
American falcon. 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 1000 is protected by US Patent
5,783,753. Nielsen-Kellerman reserves the right to change
product specifications. © 1999. Kestrel, Pocket Wind, the Kestrel
logo, NK and the NK logo are trademarks of the Nielsen-
Kellerman Co.
BEAUFORT SCALE
The Beaufort Scale is a system for
estimating wind force without the use
of instruments based on the visible
effects of the wind on the physical
environment. The behavior of smoke,
waves,trees,etc.,is rated on a 13 point
scale.The scale was devised in 1805 by
the British naval Commander Sir
Francis Beaufort (1774-1875) and is
still commonly used by mariners.
Force Description Kts
0Calm 0
1 Light Air 1-3
2 Light Breeze 4-6
3 Gentle Breeze 7-10
4 Moderate Breeze 11-16
5 Fresh Breeze 17-21
6 Strong Breeze 22-27
7 Near Gale 28-33
8 Gale 34-40
9 Strong Gale 41-47
10 Storm 48-55
11 ViolentStorm 56-63
12+ Hurricane 64+
NIELSEN - KELLERMAN
104 West 15th Street, Chester, PA 19013 USA
Phone [phone] • Fax [phone]
Web www.nkhome.com
E-mail [email protected]