Table Of Contents - Omega FDT-25 User Manual

FDT-25 Handheld Ultrasonic Flowmeter
1. Introduction...................................................................................................... 1
1.1Preface............................................................................................
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1.2 Features.......................................................................................
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1.3 Principle ofMeasurement .....................................................................
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1.4PartsIdentification.................................................................................
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1.5 TypicalApplications..............................................................................
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1.6 Data Integrity and Built-in Time-Keeper............................................................
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1.7Product Identification.............................................................................. 6
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1.8Specifications.......................................................................................6
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2. Starting Measurement ....................................................................................... 7
2.1 Built-in Battery....................................................................................7
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2.2PowerOn.......................................................................................... 7
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2.3Keypad ....................................................................................... 8
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2.4MenuWindows.................................................................................... 8
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2.5 Menu Windows Arrangement..................................................................9
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2.6Steps to Configure the Parameters ..................................................................10
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2.7TransducersMountingAllocation..................... ............ .................................11
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2.8TransducersInstallation ........................................................................12
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2.8.1TransducersSpacing........................................................................... 12
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2.8.2V-methodInstallation........................................................................... 12
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2.8.3 Z-method Installation........................................................................13
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2.8.4 W-method Installation.....................................................................13
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2.8.5 N-method Installation..................................................................... 14
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2.9 InstallationCheckup...........................................................................
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2.9.1 SignalStrength........................................................................... 14
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2.9.2 Signal Quality..............................................................................14
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2.9.3 Total Transit Time and Delta Time......................................................14
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2.9.4TimeRatiobetweentheMeasuredTotal Transit Timeand the CalculatedTime............15
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3. How To......................................................................................................... 16
3.1How tojudgeif theinstrumentworksproperly......................................................
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3.2 How to judge the liquid flowing direction
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3.3 How to change between units systems............................................................
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3.4 How to select a required flow rate unit............................................................
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3.5 How to use the totalizer multiplier...............................................................
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3.6 How to open or shut the totalizers...............................................................
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Contents
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