DUC
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Catalog excerpts

DUC - 1

Ultrasonic Flowmeter stationary • portable for liquids measuring monitoring analysing • Media: ultrasonic conducting liquids • Temperature measuring range: -40 ... 150 °C • Accuracy: up to 1% • Flow velocities: 0 ... ±30 m/s • Pipe sizes: DN 10 ... DN 6000 • For the most common materials (ultrasonic conductive) like steel and plastics • Heat quantity measurement KOBOLD companies worldwide: AUSTRALIA, AUSTRIA, BELGIUM, BULGARIA, CANADA, CHINA, CZECHIA, EGYPT, FRANCE, GERMANY, GREAT BRITAIN, HUNGARY, INDIA, INDONESIA, ITALY, MALAYSIA, MEXICO, NETHERLANDS, PERU, POLAND, REPUBLIC OF KOREA, ROMANIA, RUSSIA, SPAIN, SWITZERLAND, THAILAND, TUNISIA, TURKEY, USA, VIETNAM KOBOLD Messring GmbH Nordring 22-24 D-65719 Hofheim/Ts. V* Head Office: +49(0)6192 299-0 +49(0)6192 23398 info.de@kobold.com www.kobold.com

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DUC - 2

Ultrasonic Flowmeter stationary • portable for liquids Model DUC Description DUC uses the effect of acceleration and deceleration of acoustic signals travelling in a moving liquid. Two ultrasonic clamp-on transducers are mounted (from outside) on a pipe and produce an acoustic path. The transducers send and receive acoustic signals and the transit times t1 and t2 are measured by an electronic flow transmitter. The signal from transducer A towards transducer B is accelerated by the flow (short t1). The return signal from transducer B to transducer A is decelerated by the flow (longer t2)....

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DUC - 3

Ultrasonic Flowmeter stationary • portable for liquids Model DUC Ultrasonic Transducers DUC-W standard ultrasonic transducers The ultrasonic transducers are mounted onto the piping and transmit and receive the ultrasonic signals that are used in the flow transmitter to calculate the volumetric flow rate. Ultrasonic transducer DUC-Wx21 (2 MHz): Red housing, pipe diameters: DN10 ... DN100 Operating temperature: -40 °C ... 150 °C Protection: IP 68 (for stationary transducer) Material: PEEK/aluminium Measurement Accuracy for each Channel Ultrasonic transducer DUC-Wx10 (1 MHz): Blue housing,...

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DUC - 4

Ultrasonic Flowmeter stationary • portable for liquids Model DUC Flow transmitter DUC-MP (portable) 11 for 1-channel operation only 2) for 2-channel operation only No responsibility taken for errors; subject to change without prior notice.

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DUC - 5

Ultrasonic Flowmeter stationary • portable for liquids Model DUC General Specifications Ultrasonic transducer DN 10 ... DN 100 DN 32 ... DN400 DN 200 ... DN 6000 Ultrasonic transducers for transit time measurement portable stationary Media temperature No responsibility taken for errors; WWW.kobold.com 5 subject to change without prior notice.

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DUC - 6

Ultrasonic Flowmeter stationary ∙ portable for liquids Model DUC Mounting arrangement of the ultrasonic transducer Mounting in V-mode (standard) Flow, velocity, volume 4 ... 20 mA/pulse Mounting in Z-mode (applicable for big pipe dimensions or high acoustic damping) Flow, velocity, volume 4 ... 20 mA/pulse Mounting in W-mode (for pipe dimensions < DN 32) Flow, velocity, volume No responsibility taken for errors; subject to change without prior notice.

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DUC - 7

Ultrasonic Flowmeter stationary ∙ portable for liquids Model DUC Measuring mode 2-channel system Simultaneous measurement at 2 different measurement points with two pairs of ultrasonic transducers Flow, velocity, volume 4 ... 20 mA/pulse Simultaneous measurement with two pairs of ultrasonic transducers at one common metering point (Compensation of cross-flow effect on measurement, redundancy operation and higher accuracy) Flow, velocity, volume 4 ... 20 mA/pulse No responsibility taken for errors; subject to change without prior notice.

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DUC - 8

Ultrasonic Flowmeter stationary ∙ portable for liquids Model DUC Measurement of heat quantity DUC-M is more than a flowmeter. Together with external temperature sensors it can also measure the heat transfer of your media. Only two optional Pt  100 have to be connected to DUC-MF for measuring feed  return temperatures (RTD /  1 / RTD 2) within the heating circuit. The measured temperature difference and the measured flow Q can then be used to calculate the thermal output and the heat quantity. Heat flow / heat quantity Flow / volume Feed temperature ??? Return temperature transmitter No...

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DUC - 9

Order Details Transmitter (Example DUC-M F 1 0 0 D R2) 1) On request 2) Not for PVC transducer 3) Max. length 250 m 4) If the transducer is ordered as a spare part, the cable is not included in the scope of delivery Delivery Scope for portable Transmitter Following accessories are included in shipment: 1. Hard-shell carrying case 2. Operating manual on CD, Quickstart printed 3. Analogue output cable Mini DIN, crocodile clips 0.5 m 4. Relay / pulse output cable Mini DIN crocodile clips, 0.5 m 6. Signal cable (1 pair), BNC-connection, 3 m 7. Measuring tape Delivery Scope for Transducer...

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DUC - 10

Ultrasonic Flowmeter stationary ∙ portable for liquids Model DUC Order Details Acessories / Spare Parts (Example DUC-Z F P1) Model Description MS = mounting rails suitable for transducer DUC-WF10 (max. DN 400), max.150 °C PT = T100, surface contact, P 1 pair, cable length 5 m, incl. stainless steel strap up to DN 900 P1 = T100, surface contact, P 1 pair, cable length 10 m, incl. stainless steel strap up to DN 900 P2 = T100, surface contact, P 1 pair, cable length 20 m, incl. stainless steel strap up to DN 900 WK = factory calibration 1 MHz or 2 MHz, 5-point on pipe size DN 50 WR = factory...

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DUC - 11

Ultrasonic Flowmeter stationary ∙ portable for liquids Model DUC Technical Details Measuring principle: ultrasonic transit time Measuring range: Operating temperature: -20 ... +70 °C Ultrasonic transducers: 7 MHz Supported materials: all common pipeline materials (sound conductive, e. g. PVC, PE, steel, copper, etc.) Description DUC-ZUWD With the precise wall thickness gauge DUC-ZUWD reliable measurements of pipe wall thicknesses become a matter of minutes. Switch on, put in your pipe data and press transducer onto your pipe – that’s it. DUC-ZUWD determines the thickness of a structure or a...

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