Ahlborn ALMEMO 2390-5 Manual de Serviço descarregar pdf (Página 20)

Rotating Vanes

Design

Our rotating vanes are sensitive transducers with diamond bearings that are

very precisely adjusted. This ensures high accuracy. The aluminium rotating

vanes have stream-lined measuring heads made from plastic material (poly-

sulfone). The shafts are, as standard, guided in protected, oiled beryllium-

brass bearing sleeves and supported in tips made from special casehardened

steel. This makes the transducers especially suitable for use in air conditioning.

The rotating vanes are partly equipped with snap-on measuring heads and are,

therefore, very easy to maintain.

Meas. Range Head Ø Opening Shaft Ø Length Order No.

0.3 to 20 m/s 22 mm from 35 mm 15 mm 175 mm FV A915 S120

0.4 to 40 m/s 22 mm from 35 mm 15 mm 175 mm FV A915 S140

0.5 to 20 m/s 11 mm from 15 mm 15 mm 165 mm FV A915 S220

0.6 to 40 m/s 11 mm from 15 mm 15 mm 165 mm FV A915 S240

0.2 to 20 m/s 80 mm from 108 mm 15 mm 235 mm FV A915 SMA1

Technical Data:

Accuracy: FV A915 S120-S140: ±0.5% of f.sc.v. ±1.5% of m.v.

FV A915 S220-S240: ±1 % of f.sc.v. ±3 % of m.v.

FV A915 SMA1: ±0.5% of f.sc.v. ±1.5% of m.v.

Max. resolution: 0.01 m/s

Nominal temperature: 22°C ±2K

Operating range: –20 to +140°C

3-5-20 ALMEMO

Sensors

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Ahlborn ALMEMO 2390-5 Manual de Serviço Página 20