Thermo-Anemometer Kestrel 2000
FEATURES
- Small robust design
- High precision jewel mounted impeller
- Fast response temperature sensor
- Large clear liquid crystal display
- Functions
- Air Speed
- Maximum Air Speed
- Average Air Speed
- Temperature
- Wind Chill Equivalent Temperature
- Choice of units
- Waterproof (IP67)
- Floats
- Replaceable impeller
- Long life lithium battery
- Low cost
Description
The Kestrel 2000 Pocket Thermo-Anemometer is a small electronic rotating vane anemometer with built in temperature sensor. It uses high precision jewel bearings and a light weight impeller to provide accurate wind measurements even at low speeds. The impeller is replaceable by the user in the case of damage.
The combination of anemometer, precision temperature sensor and powerful processing enables the instrument to display the wind chill equivalent temperature, a function important to anyone going outdoors in cold conditions. Maximum speed, average speed and units selection are also provided. The liquid crystal display has large 9mm high digits for a clear readout.
Power is from an easily replaceable standard lithium coin type cell that will typically give up to 400 hours of operation. The instrument switches off automatically if no keys are pressed for 30 minutes.
The Kestrel 2000 is made from high impact injection moulded plastic and
corrosion resistant materials with the electronics fully sealed. It will
float if accidentally dropped into water. There is a hard cover for protection
when not in use and a lanyard is provided for added security
Operation
The Kestrel 2000 has been designed to be extremely simple to use with no need for complicated set up modes. There are two buttons on the front of the instrument. One button (ON) is used to switch on/off and the other (MODE) is used to select the display of current, maximum or average air speed, temperature and wind chill equivalent temperature. Holding the ON button down and pressing the MODE button selects the required units.
Temperature Measurement
The Kestrel 2000 uses a precision thermistor temperature sensor and like all thermometers time must be allowed for it to obtain the same temperature as the air being measured. However the special design of the Kestrel 2000 means that if there is a good air flow over the sensor (by holding the Kestrel 2000 into the wind) this will happen quickly. The 0.1-degree resolution of the display aids in determining when a steady reading has been reached. These features will be greatly appreciated by the user when measuring wind chill on a cold windy day!
Wind Chill
The chilling effect of the wind can be represented by the lower temperature that would be required to produce the same chilling sensation for a person walking in calm conditions. This is known as the wind chill equivalent temperature and is an important indicator in assessing the comfort of personnel spending periods outdoors. It is not an indication that an unheated inanimate object will cool below the ambient air temperature.
Specification
Performance
(Some loss of accuracy from bearing wear may occur with sustained operation at or near maximum speed)
Display
Current speed (3 second average)
Average since power on
Maximum 3 second gust since power on
Temperature
Wind chill equivalent temperature
0 - 199 (x10 FPM)
0 - 12 (Beaufort Force)
Metres per second
Kilometres per hour
Miles per hour
Feet per minute
Beaufort force
Centigrade
Fahrenheit
Physical
Environmental
(Water resistant to 1m)
Floats
Storage range -20C to 80C
Miscellaneous
High precision jewel bearings.
User replaceable impeller assembly