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don-durchfluss.png: Positive Displacement Oval Gear Flow Meter DON

Positive Displacement Oval Gear Flow Meter DON

For low and high viscous liquids

Measuring range: 0.5 - 36 l/h ... 150 - 2500 l/min liquid
Viscosity range: up to 1000 000 cP
Connection: G ... G 4 female thread,
flange DN25 ... DN100, ASME 1 ... 4"
Material: aluminium, stainless steel
pmax: 400 bar
tmax: 150 °C
Accuracy: ±0.2 ... 1 % of reading
Pulse output, analogue output, contacts, digital / pointer indicator, batcher, counter

DON - Pulse Output
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DON - Pulse Output

DON-...ZOK - Digital display
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DON-...ZOK - Digital display

DON-...M - Mechanical Counter
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DON-...M - Mechanical Counter

Datasheet

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don-gb-flow

423 KB

Operating Instructions

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DON - Operating Instructions

7,3 MB

Approvals

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DEKRA 17ATEX0004 X

II 2 G Ex db IIC T4/T6 Gb
I M 2 Ex db I Mb

2,3 MB
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IECEx DEK 15.0046X

Ex db IIC
Ex db I Mb

567 KB
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PESO P503876/1

Ex db IIC T4/T6 Gb

127 KB

Downloads

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Statement of conformity

1,8 MB

Service Videos DON-...M

Video showing resetting of Grand Totaliser


Video showing change of flow direction of mechanical counter

 

Principle of Operation

Oval gear flow meters are categorised as positive displacement flow technology. When liquid flows through this type of positive displacement flow meter, two oval geared rotors measure a constant volume per rotation within a precisely machined measuring chamber. With each rotation, a constant volume of liquid is measured. The rotation of the oval gears is sensed via magnets embedded within the rotors. These magnets transmit a high resolution pulse output. The output signal can be process externally via a remote display controller or PLC or via a variety of output/display options available as accessories attached to the flowmeters.

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