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MEASURING INSTRUMENTATION Ultrasound Monitors Flow T


he use of ultrasound waves for measuring flow through a pipe is based on the principle that the waves will travel faster downstream


than upstream. By measuring this difference in time, an accurate assessment can be made of flow rate. The key benefit of using such technology is the simplicity of deploying and using the instrumentation. There is no need to cut the pipe, immerse sensors, interrupt the liquid flow or induce any pressure drop within the pipe in order to make the measurement. These benefits were important factors in the choice of ultrasound by Indonesian water well drilling company, Supra Indodrill.


WATER MANAGEMENT The management of underground water resources was an important aim for both the Indonesian government and local businesses to provide individuals throughout the region with reliable access to this precious resource. In order to achieve this, one of the tasks that was set for Supra Indodrill was to reliably measure the offtake (or debit) of water from its wells so that it could monitor the efficiency of the pump performance as well as optimise the effectiveness of the well. Prior to upgrading its measurement technology, Supra Indodrill had to interrupt the pumping process and introduce an orifice meter or V-notch weir and mechanical flowmeter to measure the flow.


ULTRASONIC WELL FLOW MEASUREMENT Now, the company has introduced the non-invasive, clamp-on KATflow 200 portable ultrasonic flow meter from UK company, Katronic. The KATflow 200 meter requires only that two compact transducers are clamped to the outside of the pipe, transmitting ultrasonic pulses through the pipe wall and the water flowing through it. Each transducer both emits


20 /// DAQ, Sensors & Instrumentation Vol 2 No. 1


Without Immersion Measuring liquid flow through pipes without immersing sensors provides a simple technique in any environment.


DAQ, Sensors & Instrumentation Vol 2 No. 1 daqsensors@concordepublishing.com


Editorial


Direct Line +44 (0) 20 7863 3078 Editor Jonathan Newell BSc


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Managing Director Paul Williams


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DAQ, Sensors & Instrumentation is produced by Concorde Publishing Ltd


Coming up in this series... Testing& Test Houses


❱ ❱ The KATFlow 200 ultrasonic instrument provides easy, portable and non-invasive pipe flow measurement capabilities


and receives pulses, the flow rate being calculated from the difference between the time taken for the pulse to travel ‘upstream’ and ‘downstream’ in the pipe. According to Aryanggi Iwan, Director


of Supra Indodrill, the conventional v-notch technique that the company used for testing the debit of the water well took more time and led to higher costs than using the clamp-on flowmeter. “We recently used the KATflow 200


to test water debit at a gas company we serve and they were really satisfied with the method because they could use their water well normally while we were measuring the flow,” explains Iwan. The compact, battery powered


KATflow 200 system is very straightforward to install and use, being supplied complete with mounting options, acoustic positioning aid and hazardous environment compatibility options. “The KATflow 200 came in an IP65 case with everything included so it was easy to set up. We can measure the debit ten times faster than the conventional method, with higher precision so it really improves our service,” Iwan concludes.


The Journal for Test Professionals Vol 1. No 1. March 2019 +


Testing with attitude


+ ++IoT opens flood gates


Virtual prototyping eases certification


A turn for the better in machine monitoring


to EMC test houses


© Concorde Publishing Ltd 2019 This publication is copyright under the Berne Convention and the international Copyright


Convention. Apart from any fair dealing for the purpose of private study, research, criticism or review, as permitted under the Copyright, Designs and Patents Act, 1988, no part may be reproduced, stored in a retrieval system, or transmitted in any form or by any means,


electronic, electrical, chemical mechanical, photocopying, recording or otherwise, without the prior permission of the copyright owners. Unlicensed multiple copying of the contents of this


publication is illegal. Inquiries should be addressed to: The Publisher, Concorde Publishing Ltd, 100 Borough High Street, London SE1 1LB, UK.


Views expressed are those of the authors and are not necessarily endorsed by the Society of


Environmental Engineers or its publishers Concorde Publishing Ltd. Data and conclusions developed are for information only and are not intended for use without independent substantiating investigation by the potential user.


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