Omega FDT-25 User Manual

FDT-25 Handheld Ultrasonic Flowmeter
Contents
1. Introduction………………………………………………………………………………………… 1
§1.1 Preface………………………………………………………………………..……… 1
§ 1.2 Features…………………………………………………………………………… 1
§ 1.3 PrincipleofMeasurement …………………………………………………………… 2
§1.4 PartsIdentification……………………………………………………………………… 3
§ 1.5 TypicalApplications…………………………………………………………………… 5
§ 1.6 Data Integrityand Built-inTime-Keeper…………………………………………………… 5
§1.7 Product Identification…………………………………………………………………… 6
§1.8 Specifications……………………………………………………………………………6
2. Starting Measurement …………………………………………………………………………… 7
§ 2.1 Built-inBattery…………………………………………………………………………7
§2.2 PowerOn……………………………………………………………………………… 7
§2.3 Keypad …………………………………………………………………………… 8
§ 2.4 MenuWindows………………………………………………………………………… 8
§ 2.5 Menu Windows Arrangement…………………………………………………………9
§ 2.6 Stepsto Configurethe Parameters …………………………………………………………10
§2.7 TransducersMountingAllocation………………… ………… ……………………………11
§ 2.8 TransducersInstallation ………………………………………………………………12
§ 2.8.1TransducersSpacing………………………………………………………………… 12
§ 2.8.2V-methodInstallation………………………………………………………………… 12
§ 2.8.3Z-method Installation………………………………………………………………13
§ 2.8.4 W-method Installation……………………………………………………………13
§ 2.8.5 N-methodInstallation…………………………………………………………… 14
§ 2.9 InstallationCheckup………………………………………………………………… 14
§ 2.9.1 SignalStrength………………………………………………………………… 14
§2.9.2 Signal Quality……………………………………………………………………14
§ 2.9.3 Total Transit Time and Delta Time………………………………………………14
§ 2.9.4TimeRatiobetweentheMeasuredTotalTransitTimeandtheCalculatedTime…………15
3. How To…………………………………………………………………………………………… 16
§ 3.1 How tojudgeif theinstrumentworksproperly……………………………………………… 16
§ 3.2 How to judge the liquid flowing direction ……………………………………………… 16
§ 3.3 How to change betweenunits systems…………………………………………………… 16
§ 3.4 How to select a required flow rateunit…………………………………………………… 16
§ 3.5 How to use the totalizer multiplier……………………………………………………… 16
§ 3.6 How to open or shut thetotalizers……………………………………………………… 16

Omega FDT-25 Specifications

General

Brand	Omega
Model	FDT-25
Category	Measuring Instruments
Language	English