Introduction; Specifications; General Specifications; Range Specifications - Extech Instruments 451112 User Manual

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
m/s 0.4 – 30.0 m/s
km/h 1.4 – 108.0 km/
ft/min 80 – 5910 ft/min *
knots 0.8 – 58.3 knots
o
Temp. 0 to 60 C / 32 to 140
* Multiply displayed ft/min readings by a factor of 10
Resolution
0.1 m/s ± (2% + 0.2 m/s)
0.1 km/h ± (2% + 0.6km/hr)
10 ft/min ± (2% + 40 ft/min)
0.1 knots ± (2% + 0.4 knots)
o o o
F 0.1 C / 0.1 F
2
Accuracy
o o
0.8 C / 1.5 F
451112 V3.2 12/07