KOBOLD Instruments Inc • 1801 Parkway View Drive • 15205 Pittsburgh, PA • Tel: +1 412 788 2830 • E-mail: Please activate JavaScript • visit koboldusa.com

dot-durchfluss.png: Turbine Wheel Flow Meter / Monitor DOT

Turbine Wheel Flow Meter / Monitor DOT

For low viscous liquids

Measuring range: 0.11 - 1.1 ... 270 - 2700 m³/h water
Connection: G ½ ... 2, ½ ... 2" NPT, flange DN15 ... 300, ANSI ½ ... 12"
Material: stainless steel, carbon steel
pmax: 250 bar
tmax: 120°C
Linearity: ±0.5 % of reading

Datasheet

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dot-gb-flow

267 KB

Operating Instructions

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326 KB
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ZOK-Z2 - Quick Start Guide

417 KB
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ZOK-Ex-Supplementary - Operating Instructions

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Miscellaneous

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General Safety Instructions

190 KB

Description

The turbine flowmeter model DOT consists of a helically shaped turbine rotor supported in two tungsten carbide bearings, the rotor being solid ferritic stainless steel of a grade compatible with the metered liquid, all contained within a housing of non-magnetic stainless steel. A pick off coil having a permanent magnet core is mounted in the housing adjacent to the rotor blade tips such that a magnetic circuit is set up via the rotor blades.
Rotation of the rotor varies the reluctance of this magnetic circuit and the flux changes induce a small voltage in the coil, the frequency of which is directly proportional to the rotor speed and therefore proportional to the volumetric flow rate. The effects of increasing viscosity reduce the linear flow range and  shifts the k-factor. Further, the effect of viscosity depends on the frequency (RPM of rotors). Therefore, smaller the meter, higher is the effect of viscosity on the linearity curve.

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KOBOLD Instruments Inc.

1801 Parkway View Drive
15205 Pittsburgh PA
United States of America

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