451112 Datasheet, PDF (2/5 Pages) Extech Instruments Corporation. – Vane Anemometer

Introduction
Congratulations on your purchase of Extech’s Vane Anemometer. This meter is shipped fully
tested and calibrated and, with proper use, will provide years of reliable service.
Specifications
General Specifications
Display
0.7" (18mm) 3-1/2 digit (1999 count) LCD
Measurement m/s (meters per second), km/h (kilometers per hour), ft/min
(feet per minute), knots (nautical miles per hour), Temp. °C/°F
Data hold
Freezes present value on display when selected
Sensor Structure Air velocity sensor: Conventional twisted vane arm with
balanced, low-friction ball-bearing design
Temperature sensor: Thermister
Ambient
32 °F to 122 °F (0 °C to 50 °C); <80%
Power Supply 9V battery (Heavy duty type)
Power Current Approx. 9 mA DC
Weight
12 oz. (325 g) (including battery)
Dimensions
Main instrument: 6.6 x 3.2 x1.2" (180 x 72 x 32 mm)
Sensor Head: Round, 2.8" (72 mm) Dia.
Sensor Cable: 39" (1m) length
Range Specifications
Measure
Range
Resolution
m/s
0.4 – 30.0 m/s
0.1 m/s
km/h
1.4 – 108.0 km/
0.1 km/h
ft/min
80 – 5910 ft/min *
10 ft/min
knots
Temp.
0.8 – 58.3 knots
0 to 60^oC / 32 to 140^oF
0.1 knots
0.1^oC / 0.1^oF
* Multiply displayed ft/min readings by a factor of 10
Accuracy
± (2% + 0.2 m/s)
± (2% + 0.6km/hr)
± (2% + 40 ft/min)
± (2% + 0.4 knots)
0.8^oC / 1.5^oF
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451112 V3.3 1/08