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Sono-Trak™ Doppler
Ultrasonic Flow Meter
April 2004 5707070-A
User Manual
EMCO PRODUCTS
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Sono-Trak™ Doppler Ultrasonic Flow Meter COPYRIGHT This manual and the information contained herein is the proprietary property of Advanced Energy Industries, Inc. No part of this manual may be reproduced or copied without the express written permission of Advanced Energy Industries, Inc. Any unauthorized use of this manual © or its contents is strictly prohibited. Copyright April 2004 Advanced Energy Industries, Inc. All Rights Reserved. DISCLAIMER AND LIMITATION OF LIABILITY The informati
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® Advanced Energy This box identifies hazards or unsafe practices that could result in personal injury. This box identifies hazards or unsafe practices that could result in product or property damage. Attention: This box identifies important information. It calls attention to a procedure, practice, or condition which is important to highlight TRADEMARKS is a registered trademark of Advanced Energy Industries, Inc. ® Advanced Energy is a registered trademark of Advanced Energy Industries, Inc
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Sono-Trak™ Doppler Ultrasonic Flow Meter Table of Contents Chapter 1: Introduction and Theory of Operation Introduction ............................................................................................................... 1-1 Features of the Sono-Trak™ Doppler Ultrasonic Flow Meter ..................... 1-1 Components of the Sono-Trak™ Doppler Ultrasonic Flow Meter System .. 1-2 Electronics Enclosure and Display Panel ......................................... 1-2 Transducers and Cablin
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® Advanced Energy Setting Advanced Parameters ........................................................... 2-22 Normal Operation ......................................................................................... 2-25 Portable Battery Operation (Portable Units Only) ........................................ 2-25 Chapter 3: Troubleshooting and Customer Support Troubleshooting the Unit .......................................................................................... 3-1 Flow Meter Tro
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Sono-Trak™ Doppler Ultrasonic Flow Meter Chapter Chapter 1 Introduction and Theory of Operation INTRODUCTION The Sono-Trak™ Doppler ultrasonic flow meter provides an accurate and easy-to-use measuring system for high-solid fluid flow through pipes 1/2 inch to 300 inches (outside diameter). The Doppler flow meter is well suited for flow measurement applications such as sludges, slurries, aerated liquids, sewage, dredges, pulp, plastics, and activated sludges. The Doppler flow meter features
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® Advanced Energy Components of the Sono-Trak™ Doppler Ultrasonic Flow Meter System A typical Doppler flow meter system is comprised of an electronics enclosure (with a display panel), a digitizer, and two clamp-on transducers. ELECTRONICS ENCLOSURE AND DISPLAY PANEL The display panel in the electronics enclosure features an easy-to-read LCD screen, a keypad, and LEDs to interface with the flow meter. The Doppler flow meter can be wall mounted for permanent installation or a portable option
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Sono-Trak™ Doppler Ultrasonic Flow Meter Sonic Reflectors The Doppler flow meter requires sonic reflectors in order to operate. These reflectors may consist of particles or air bubbles within the flow to be measured. Your readings may vary slightly with changes in concentration or size of these reflectors as well as the pipe condition and size. Note: Glycerin is the only known industrial liquid today that is not sonically conductive. The Doppler flow meter uses two similar transducers to se
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® Advanced Energy APPLICATIONS Some of the materials the Sono-Trak™ Doppler ultrasonic flow meter is well-suited for measuring include: Ag water Abrasives Asphalts Concrete Dredge flows Drilling mud Large contaminates Extremely viscous substances Grout Hazardous wastes Municipal sludges and wastes Paper pulp Rendering products Reservoirs Rivers and streams Runoffs Sludges Slurries Suspended solids Most all liquids containing suspended particles or air bubbles
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Sono-Trak™ Doppler Ultrasonic Flow Meter Chapter Chapter 2 Installation and Operation BEFORE INSTALLING THE UNIT Before installing your Sono-Trak™ Doppler ultrasonic flow meter, follow the steps listed below: 1. See “Unpacking the Unit” on page 2-1. 2. Make sure you have performed the “Pre-installation Procedures and Checks” on page 2-2. 3. Determine if your process/installation is compatible with the requirements of Doppler flow meter. See “Determining if Your Process/Installation is Right f
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® Advanced Energy Table 2-1. Items shipped with the flow meter system Fixed unit (C5F model) Portable unit (C5P model) Electronics enclosure Electronics enclosure Two transducers and a 25´ cable Two transducers and a 25´ cable (standard); custom lengths up to (standard); custom lengths up to 5000´ are available 5000´ are available Digitizer Digitizer Tiedown kit Tiedown kit Sonic coupling gel Sonic coupling gel User manual User manual 12 V 2.2 AH battery 110 VAC battery
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Sono-Trak™ Doppler Ultrasonic Flow Meter If the reading on the display panel appears to be accurate, continue to the next 4 step. If you do not see a flow reading on the LCD screen at all, or if the flow reading 4 is much lower or higher than expected, try repositioning the transducers. If this does not help, see “Determining if Your Process/Installation is Right for a Doppler Flow Meter” on page 2-3 and consult “Troubleshooting the Unit” on page 3-1. 7. Observe the yellow Echo LED on the
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® Advanced Energy Assessing Particles or Air Bubbles The ultrasonic beam from the transducer is transmitted through the pipe wall into the liquid. The particles, air bubbles suspended in the liquid, have to be large enough to act as reflectors to return the signal back to the transducer so that a measurement may be taken. It is important to understand that the ultrasonic beam from the Doppler flow meter does not penetrate air very well. A few bubbles will not affect flow meter performance,
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Sono-Trak™ Doppler Ultrasonic Flow Meter Assessing Pipe Material and Condition Doppler flow meter performance is best maximized by using piping that is sonically conductive. The Doppler flow meter assumes that the path by which the ultrasonic beam enters the pipe and returns to the transducer is ultrasonically homogenous, which means that you must use your flow meter with pipes with non-porous smooth pipe walls. Concrete-lined pipes, old or crystallized cast iron pipes, hand-wrapped fibergl
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® Advanced Energy meter is not performing ideally. A point to remember is that turbulence is a non-linear function of flow, so turbulence can create reflected signals. Interpret readings near turbulent flows with caution. Sources of turbulence are elbows, flanges, valves, orifices, wedges, pumps, pipe openings, and pipe irregularities (rust, corrosion, and buildup). Always avoid vertical pipe runs (especially downhill pipe runs). Table 2-2. Flow meter distance from turbulence and reading acc
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Sono-Trak™ Doppler Ultrasonic Flow Meter D = Nominal pipe diameter Figure 2-1. Straight run examples TRANSDUCER PLACEMENT You should always avoid measuring liquids in vertical downward flows with any flow meter. In the case of Doppler flow meters, vertical downward flows cause erroneous readings by introducing air bubbles. Excessive air bubbles attenuate the measurement signal by hampering penetration of the ultrasonic beam into the fluid. Bubbles will tend to rise against the flow, and sinc
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® Advanced Energy When the Doppler transducers are mounted on a horizontal pipe, care should be taken to mount them in the 7 o’clock and 10 o’clock positions (with the top of the pipe—the side furthest from the Earth—corresponding to the 12 o’clock position). If the transducer is mounted on the bottom of the pipe, settling particles may attenuate the signals by introducing an additional sonic barrier. Also, air may agglomerate at the top of the pipe. Since the ultrasonic frequencies used wi
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Sono-Trak™ Doppler Ultrasonic Flow Meter Sono-Trak Transit Time Ultrasonic Flow Meters In the event the flow to be measured does not contain the minimum required particle size and/or parts per million count, and the transducer will not read, you may want to consider the Sono-Trak™ Transit Time ultrasonic flow meter for your application. Contact an EMCO sales representative with your flow meter application questions. See “EMCO Flow Systems Support” on page 3-11 for contact information. INSTAL
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® Advanced Energy 3. Place the transducers side by side between 7 o’clock and 10 o’clock on the pipe as shown in Figure 2-4. Place the transducers flush to the pipe, facing the same direction. See Figure 2-5 for an example. Note: Be careful with transducer placement. Air bubbles near the top of the pipe or sediment on the bottom of the pipe can hinder successful flow readings. Place the transducers as shown in Figure 2-4. Electronics enclosure Transducers 12 o’clock position Cross-section of
