Contents６Ｆ８Ａ０８７０－ １ －
６Ｆ８Ａ０８７０About Safety Precautions
Integral type LF414/LF600F, LF414/LF610F, LF414/LF620FExplanation of signal words
SAFETY PRECAUTIONSSafety symbols
－ ２ －－ ３ －
SAFETY PRECAUTIONS Safety Precautions for Installation and WiringDON’T
„ Do not modify or disassemble the enclosureSafety Precautions for Installation and Wiring
SAFETY PRECAUTIONS continuedDON’T
－ ４ －Warranty and Limitation of Liability
Safety Precautions for Maintenance and InspectionUsage limitation
－ ５ －－ ６ －
Handling Precautions・Places where excessive vibration or mechanical shock occurs
2 Wire cables correctly and securely－ ７ －
Handling Precautions continued－ ８ －
Table of Contents1.1 Product Inspection
1. Product Inspection and Storage1.2 Strage
－ ９ －2. Overview
Features－ １０ －
5 Intelligent functions3.1 Appearance
3. Names of Parts3.1.1 Appearance of LF414/LF600F, LF414/LF610F
Integral 1 Meter size of 1/2 inch 15mm－ １２ －
2 Meter size of 1inch 25mmFigure 3.1.2 Appearance of LF414/LF600F, LF610F Meter size 1 inch25mm
Ground terminal for converter－ １３ －
3 Meter size of 1 1/2 to 4 inch 40 to 100mmFigure 3.1.3 Appearance of LF414/LF600F, LF610F
Meter size 1 1/2 to 4 inch 40 to 100mm－ １４ －
4 Meter size of 6 and 8 inch 150 and 200mmLifting Lugs
provided－ １５ －
3.1.2 Appearance of LF414/LF620FFigure 3.1.5 Appearance of LF414/LF620F Meter size 1/2inch15mm
Ground terminal for converter Flow direction arrow DetectorFigure 3.1.6 Appearance of LF414/LF620F Meter size 1 inch25mm
－ １６ －Ground terminal for converter Flow direction arrowFigure 3.1.7 Appearance of LF414/LF620F
－ １７ －Figure 3.1.8 Appearance of LF414/LF620F
－ １８ －Meter size 6 and 8 inch 150 and 200mm
Ground terminal for converter Lifting LugsSeparate 1 Meter size of 1/2 inch 15mm
3.1.3 Appearance of LF414－ １９ －
Signal cablefor Signal cable
－ ２０ －Figure 3.1.10 Appearance of LF414 Meter size 1 inch25mm
for Excitation cableSignal cable
－ ２１ －Figure 3.1.11 Appearance of LF414
Excitation cableFigure 3.1.12 Appearance of LF414
－ ２２ －Meter size 6 and 8 inch150 and 200mm3.2 Construction of the terminal blocks
Signal cable terminal3.2.2 Terminal Block Construction of LF414 Type
－ ２３ －Safety Precautions for Installation
4. Installation－ ２４ －
„ Use an appropriate device to carry and install4.2 Mounting Procedure 4.2.1 Pipe checks
4.1 Notes on Selecting the Installation Location－ ２５ －
2. Avoid places where excessive pipe vibration occursFigure 4.2 Example of Pipe Fixing Procedure
－ ２６ －Figure 4.3 Model Diagram of Unsupported Pipes－ ２７ －
4.2.2 Installation ProcedureFigure 4.4 LF414 flowmeter detector piping connectionsTable 4.1 Bolt length and Nut tightening torque
－ ２８ －1b Optional “Mount Anywhere” Installation Mount-Anywhere Technology
1a Ideal Upstream Straight Pipe Length Installation Requirements4.3 Piping Connections
L=5D－ ３０ －
2 Pipe OrientationFigure 4.6 Installation position of the detector
Figure 4.5 Detector Piping Orientation4 Preventing an Empty Pipe Condition
3 Flow Direction－ ３１ －
Figure 4.7 Flow direction arrow on the detector1 Grounding of the LF414/LF620F type
4.4 Grounding－ ３２ －
Figure 4.10 Grounding the LF414/LF620F Type－ ３３ －
2 Grounding of the LF414 typeSafety Precautions for Wiring
5.Wiring－ ３４ －－ ３５ －
６Ｆ８Ａ０８７０„ Install a switch and fuse to isolate the
independently from power equipment. 100 ohm5.1 Cables
Notes on wiring－ ３６ －
Table 5.1 Installation Cables5.3.2 Notes on Wiring of the Separate type LF414
5.3 Notes on Wiring 5.3.1 Notes on Instrumentation-Converter Wiring5.2 External Device Connections and Grounding
－ ３７ －1 Power cable, current output cable, digital I/O cables
5.4 Wiring 5.4.1 Terminal Treatment of CablesSeparate 2 Excitation cable
－ ３８ －Notes on signal cable shield processing work
3 Connecting the input signal cable－ ３９ －
Figure 5.3 Terminal Treatment of Flow Rate Signal Cable－ ４０ －
5.4.2 Cable ConnectionFigure 5.5 Connecting a Cable to Terminal BlockPreparatory check
6. Operation－ ４１ －
„ Check the wiring between the converter and related instrumentsSafety precaution for Maintenance and Troubleshooting
7. Maintenance and Troubleshooting－ ４２ －
„ Do not conduct wiring work when power is applied„ Cleaning
7.1 MaintenanceCheck/Replacement of the display unit
materials7.2.1 Flow rate is not indicated
7.2 Troubleshooting－ ４４ －
START Are power supplies correct NO for each device? YES－ ４５ －
7.2.2 Flow rate indicated is not correctPerform the zero adjustment Refer to combined converters manual
Clean the inside of the detector pipe－ ４６ －
7.2.3 Flow rate indication is not stableIs power supply voltage
Use a power supply within the specified range－ ４７ －
8. Principle of OperationSquare-Wave Excitation Figure 8.1 Principle of Operation9.1Specifications
9. Specifications－ ４８ －
Measurement range in terms of flow velocityElectrical conductivity μS/cm
－ ４９ －Figure 9.1 Electrical Conductivity vs. Cable LengthTable 9.1 Standard Flow Range
－ ５０ －Table 9.2 Flow velocity vs. flow volume
－ ５１ －Unit gal/min
Unit m3/h－ ５２ －
Table 9.3 Type Specification Code9.2 Type Specification Code－ ５３ －
Table 9.4 Type Specification Code Exciting Cable and Signal CableExciting cable length Nominal cross-sectional area Overall diameter10.1 Outline dimensions of LF414/LF600F, LF414/LF610F
10. Outline Dimensions1 Meter size of 1/2 inch 15mm
2 Meter size of 1 inch 25mm－ ５５ －
3 Meter size of 1 1/2 to 8 inch 40 to 200mm－ ５６ －
10.2 Outline dimensions of LF414/LF620FWaight approx 9 lb 4kg－ ５７ －－ ５８ －
10.3 Outline dimensions of LF414Waight approx 7 lb 3kg－ ５９ －－ ６０ －
Appendix 1-1 A system block diagram for LF414/LF600F, LF414/LF610F－ ６１ －
1-2 A system block diagram for LF414/LF620F－ ６２ －
2-1 A system block diagram for LF414Distributor Address Name
－ ６３ －Phone number （
Product codeFCF50017
