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GE
Sensing & Inspection Technologies Flow
TransPort® Model PT878
Portable Liquid Flowmeter
User’s Manual
910-219 Rev. F
November 2009
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GE Sensing & Inspection Technologies TransPort® Model PT878 Portable Liquid Flowmeter User’s Manual 910-219 Rev. F November 2009 GESensingInspection.com ©2009 General Electric Company. All rights reserved. Technical content subject to change without notice.
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Preface Information Paragraphs • Note paragraphs provide information that provides a deeper understanding of the situation, but is not essential to the proper completion of the instructions. • Important paragraphs provide information that emphasizes instructions that are essential to proper setup of the equipment. Failure to follow these instructions carefully may cause unreliable performance. • Caution! paragraphs provide information that alerts the operator to a hazardous situation that ca
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Preface Auxiliary Equipment Local Safety Standards The user must make sure that he operates all auxiliary equipment in accordance with local codes, standards, regulations, or laws applicable to safety. Working Area WARNING! Auxiliary equipment may have both manual and automatic modes of operation. As equipment can move suddenly and without warning, do not enter the work cell of this equipment during automatic operation, and do not enter the work envelope of this equipment during manual oper
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Preface Environmental Compliance Waste Electrical and Electronic Equipment (WEEE) Directive GE Sensing & Inspection Technologies is an active participant in Europe’s Waste Electrical and Electronic Equipment (WEEE) take-back initiative, directive 2002/96/EC. The equipment that you bought has required the extraction and use of natural resources for its production. It may contain hazardous substances that could impact health and the environment. In order to avoid the dissemination of those sub
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Preface [no content intended for this page - proceed to next page] vi Transport® Model PT878 Portable Liquid Flowmeter User’s Manual
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Contents Chapter 1. Features and Capabilities 1.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.2 System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.2.1 The Flowcell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.2.2 Electronics Package. . . . . . . . . . . . . . . . .
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Contents Chapter 3. Programming Site Data 3.1 Entering the Program Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.2 Entering Transducer Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.2.1 Parameters for Special Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.2.2 Confirming Entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.3 Ent
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Contents Chapter 4. Creating and Managing Sites 4.1 The Site Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 4.1.1 Creating a New Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 4.1.2 Opening an Existing Site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 4.1.3 Saving a Site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents Chapter 6. Programming Meter Settings 6.1 Entering the Meter Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 6.2 Selecting Measurement Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 6.3 The Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 6.4 Entering Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents Chapter 7. Logging Data 7.1 Entering the Logging Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 7.2 The Log Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 7.3 The File Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 7.3.1 Setting up a New Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents Chapter 8. Servicing the PT878 8.1 Entering the Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 8.2 Printing Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 8.3 Setting up the Thickness Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 8.4 Measuring Pipe Wall Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents Chapter 9. Diagnostics and Troubleshooting 9.1 Error Code Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 9.2 Displaying Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 9.3 Flowcell Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 9.3.1 Fluid Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents Appendix A. Menu Maps Appendix B. Measuring P and L Dimensions Appendix C. Temperature Transmitter Installation C.1 Guidelines for RTD Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243 C.2 Mounting RTDs on the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 C.2.1 Assembling the Clamping Fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 C.2.2 Mounting the RTD to the Pipe .
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Chapter 1. Features and Capabilities Chapter 1. Features and Capabilities ® The TransPort Model PT878 is a transit-time flowmeter which combines all the features of a full-size flowmeter with the advantages of a portable instrument. This section describes the TransPort features and general system, and explains the theory of operation. 1.1 Overview The PT878 measures the flow rate of acoustically conductive single-phase fluids. This includes most clean liquids, sewage, some slurries, some oi
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Chapter 1. Features and Capabilities 1.1 Overview (cont.) To assist you, the PT878 is fully equipped with context-sensitive on-line help which is accessible at any time by simply pressing the “?” (Help) key. Internal diagnostic and troubleshooting features help isolate and remedy common flowcell and transducer problems. The PT878 operates with all standard GE transducers - wetted, clamp-on, ® hybrids (Pan-Adapta plug), and buffered styles. A built-in ultrasonic thickness gauge capability mea
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Chapter 1. Features and Capabilities 1.2.2 Electronics Package The PT878 consists of circuits that generate, receive, and measure the travel time of the ultrasonic pulses. It also contains a microcomputer that controls operation and calculates flow measurement parameters. Specific circuits function as follows: • TRANSMIT SIGNAL GENERATOR - The transmit signal generator, under control of the microcomputer and timing circuit, synthesizes the signal that drives the transmitter. • TRANSMITTER -
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Chapter 1. Features and Capabilities 1.3 Theory of Operation The PT878 is a transit-time ultrasonic flowmeter. When ultrasonic pulses are transmitted through a moving liquid, the pulses that travel in the same direction as the fluid flow (downstream) travel slightly faster than the pulses that travel against the flow (upstream). The PT878 uses various digital signal processing techniques, including cross-correlation, to determine transit times and then uses the transit times to calculate fl
