Kestrel 2000 User Manual
Revised 07/23/10
2000
Pocket Weather ® Meter
with Backlight
Thank you for purchasing the Kestrel 2000 Pocket
Weather Meter. This instrument will measure the
following environmental conditions:
• wind speed
• maximum wind gust
• average wind speed
This instrument also features a data hold function and
an automatic power-down function. Every unit is fully
tested at our factory for measurement accuracy and
waterproof integrity.
• temperature (air, water, snow)
• windchill
INSTRUCTION MANUAL
Kestrel® 2000 Pocket Weather® Meter 3
OPERATION
1. Slide o cover.
2. Turn on. Press the center button (
3. Select operating mode. Press the right arrow (
listed below. Press the left arrow (
order. The instantaneous measurements will be displayed. (See Understanding the
Measurements section for more information.)
4. Select the units of measure. Press
of measure.
Mode Hint Icon Units of Measure
Wind Speed SPd m/s, ft/min, km/h, mph,
Max Gust SPd
Avg Speed SPd
Temperature dEG
Wind Chill chill
) to turn on the unit.
) to scroll through the measurements
) to scroll through the measurements in reverse
while holding to scroll through the units
kt, B
MAX
AVG
m/s, ft/min, km/h, mph,
kt, B
m/s, ft/min, km/h, mph,
kt, B
C, F
C, F
5. Hold mode. Press
word “HOLD” will blink to indicate the Hold Mode. Press
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 continue to work
as usual.
6. Turn on the backlight. Press
pressed while the backlight is illuminated, the backlight will remain illuminated
for another 10 seconds. Press
the backlight.
7. Turn o. Hold
turn o if no buttons have been pressed for 45 minutes.
while holding to hold the measured value on the display. The
while holding to exit
to activate the backlight for 10 seconds. If or are
while the backlight is illuminated to manually turn o
for 2 seconds to manually turn o the unit. The unit will automatically
UNDERSTANDING THE MEASUREMENTS
Wind Speed - Average over the previous three seconds. The measurement will be accurate
for air ow 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.
Kestrel® 2000 Pocket Weather® Meter 5
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 ows past it. For fastest response, either
hold the unit into the wind or wave the unit side to side for 15 seconds. Readings should be
taken in the shade.
Wind Chill - Combination of wind speed and temperature, as dened by the US National
Weather Service. Wind chill is the eective 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 45ºF or below 3 mph.
MAINTENANCE & TROUBLESHOOTING
Environmental
Every Kestrel Meter is fully waterproof and oats, 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 watch
batteries are sold). Wipe the battery clean of any ngerprints
and insert the positive (+) pole up, angling the battery
downward and pressing it rmly into place. 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 that responds to the earth’s magnetic elds. This does not
aect the accuracy of the wind speed readings because the magnetic eld applies both a
braking and an accelerating 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 bearings in the impeller.
Replacing the Battery
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