AV2 is extremely user friendly with all functions accessed from the logical front switchpad. The large clear LCD display can be read at a glance and incorporates on-screen function indicators to ensure all measurements are easily understood. Once the operators choice of english or metric display is selected the next option available is to choose the mode of reading. Two modes are offered: continuous or averaging. In continuous reading mode, spot measurements are easily taken with updated readings continually displayed until the read button is pressed to hold the last indicated value.

In averaging reading mode, time saving scanning measurements are possible with readings constantly updated to display the running average value. By pressing the read button in this mode the average reading for the duration of the test is held.

Both continuous and averaging mode have a maximum test period of 180 minutes, at any time during which the operator can “Hold” either the latest or average values on the display. The versatility of such a wide time span allows the operator flexibility to quickly scan, traverse slowly or even leave the vane sensor in position in the airstream for short term monitoring.

However, the really exceptional feature of AV2 is the ability to measure directly not only air velocity but also to instantly display actual Air Volume Flow. By simply entering the area of the grille, duct or opening to be monitored, direct readings of air volume will be displayed, in either m3/sec or cfm.

An analogue output is also incorporated as standard so that measured values may be downloaded onto a compatible printer or data logger such as the AM2.

The instrument is equipped with an industry standard 100mm (4") diameter rotating vane sensor. A compact, interchangeable 35mm (1.4") diameter rotating vane sensor is also available as an optional extra. AV2 is supplied complete in an impact resistant, protective case to withstand the rigors of on-site use, which has compartments for both sensors, a spare battery (not supplied) instruction booklet and telescopic extension handle. Designed with site testing in mind the telescopic sections provide rigid support and extend to 1.1m in length. The tip incorporates a lockable 'all angle' swivelling joint for easy and accurate alignment of the vane sensor to the airstream in even the most awkward positions.

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