Toshiba LF414 manual Flow Direction, Preventing an Empty Pipe Condition, － ３１ －, ６Ｆ８Ａ０８７０

Contents ６Ｆ８Ａ０８７０ ６Ｆ８Ａ０８７０ － １ －About Safety Precautions Integral type LF414/LF600F, LF414/LF610F, LF414/LF620FSAFETY PRECAUTIONS Explanation of signal wordsSafety symbols － ２ －SAFETY PRECAUTIONS Safety Precautions for Installation and Wiring － ３ －DON’T „ Do not modify or disassemble the enclosureSAFETY PRECAUTIONS continued Safety Precautions for Installation and WiringDON’T － ４ －Safety Precautions for Maintenance and Inspection Warranty and Limitation of LiabilityUsage limitation － ５ －Handling Precautions － ６ －・Places where excessive vibration or mechanical shock occurs 2 Wire cables correctly and securelyHandling Precautions continued － ７ －Table of Contents － ８ －1. Product Inspection and Storage 1.1 Product Inspection1.2 Strage － ９ －Features 2. Overview－ １０ － 5 Intelligent functions3. Names of Parts 3.1 Appearance3.1.1 Appearance of LF414/LF600F, LF414/LF610F Integral 1 Meter size of 1/2 inch 15mm2 Meter size of 1inch 25mm － １２ －Figure 3.1.2 Appearance of LF414/LF600F, LF610F Meter size 1 inch25mm Ground terminal for converter3 Meter size of 1 1/2 to 4 inch 40 to 100mm － １３ －Figure 3.1.3 Appearance of LF414/LF600F, LF610F Meter size 1 1/2 to 4 inch 40 to 100mm4 Meter size of 6 and 8 inch 150 and 200mm － １４ －Lifting Lugs provided3.1.2 Appearance of LF414/LF620F － １５ －Figure 3.1.5 Appearance of LF414/LF620F Meter size 1/2inch15mm Ground terminal for converter Flow direction arrow DetectorGround terminal for converter Flow direction arrow － １６ －Figure 3.1.6 Appearance of LF414/LF620F Meter size 1 inch25mm － １７ － Figure 3.1.7 Appearance of LF414/LF620F－ １８ － Figure 3.1.8 Appearance of LF414/LF620FMeter size 6 and 8 inch 150 and 200mm Ground terminal for converter Lifting Lugs3.1.3 Appearance of LF414 Separate 1 Meter size of 1/2 inch 15mm－ １９ － Signal cable－ ２０ － for Signal cableFigure 3.1.10 Appearance of LF414 Meter size 1 inch25mm for Excitation cable－ ２１ － Signal cableFigure 3.1.11 Appearance of LF414 Excitation cableMeter size 6 and 8 inch150 and 200mm － ２２ －Figure 3.1.12 Appearance of LF414 Signal cable terminal 3.2 Construction of the terminal blocks3.2.2 Terminal Block Construction of LF414 Type － ２３ －4. Installation Safety Precautions for Installation－ ２４ － „ Use an appropriate device to carry and install4.1 Notes on Selecting the Installation Location 4.2 Mounting Procedure 4.2.1 Pipe checks－ ２５ － 2. Avoid places where excessive pipe vibration occursFigure 4.3 Model Diagram of Unsupported Pipes － ２６ －Figure 4.2 Example of Pipe Fixing Procedure Figure 4.4 LF414 flowmeter detector piping connections 4.2.2 Installation Procedure－ ２７ － － ２８ － Table 4.1 Bolt length and Nut tightening torque1a Ideal Upstream Straight Pipe Length Installation Requirements 1b Optional “Mount Anywhere” Installation Mount-Anywhere Technology4.3 Piping Connections L=5D2 Pipe Orientation － ３０ －Figure 4.6 Installation position of the detector Figure 4.5 Detector Piping Orientation3 Flow Direction 4 Preventing an Empty Pipe Condition－ ３１ － Figure 4.7 Flow direction arrow on the detector4.4 Grounding 1 Grounding of the LF414/LF620F type－ ３２ － Figure 4.10 Grounding the LF414/LF620F Type2 Grounding of the LF414 type － ３３ －－ ３４ － 5.WiringSafety Precautions for Wiring ６Ｆ８Ａ０８７０ － ３５ －„ Install a switch and fuse to isolate the independently from power equipment. 100 ohmNotes on wiring 5.1 Cables－ ３６ － Table 5.1 Installation Cables5.3 Notes on Wiring 5.3.1 Notes on Instrumentation-Converter Wiring 5.3.2 Notes on Wiring of the Separate type LF4145.2 External Device Connections and Grounding － ３７ －5.4 Wiring 5.4.1 Terminal Treatment of Cables 1 Power cable, current output cable, digital I/O cablesSeparate 2 Excitation cable － ３８ －3 Connecting the input signal cable Notes on signal cable shield processing work－ ３９ － Figure 5.3 Terminal Treatment of Flow Rate Signal CableFigure 5.5 Connecting a Cable to Terminal Block 5.4.2 Cable Connection－ ４０ － 6. Operation Preparatory check－ ４１ － „ Check the wiring between the converter and related instruments7. Maintenance and Troubleshooting Safety precaution for Maintenance and Troubleshooting－ ４２ － „ Do not conduct wiring work when power is applied7.1 Maintenance „ CleaningCheck/Replacement of the display unit materials7.2 Troubleshooting 7.2.1 Flow rate is not indicated－ ４４ － START Are power supplies correct NO for each device? YES7.2.2 Flow rate indicated is not correct － ４５ －Perform the zero adjustment Refer to combined converters manual Clean the inside of the detector pipe7.2.3 Flow rate indication is not stable － ４６ －Is power supply voltage Use a power supply within the specified rangeSquare-Wave Excitation Figure 8.1 Principle of Operation 8. Principle of Operation－ ４７ － 9. Specifications 9.1Specifications－ ４８ － Measurement range in terms of flow velocityFigure 9.1 Electrical Conductivity vs. Cable Length － ４９ －Electrical conductivity μS/cm － ５０ － Table 9.1 Standard Flow Range－ ５１ － Table 9.2 Flow velocity vs. flow volumeUnit gal/min Unit m3/h9.2 Type Specification Code Table 9.3 Type Specification Code－ ５２ － Exciting cable length Nominal cross-sectional area Overall diameter Table 9.4 Type Specification Code Exciting Cable and Signal Cable－ ５３ － 10. Outline Dimensions 10.1 Outline dimensions of LF414/LF600F, LF414/LF610F1 Meter size of 1/2 inch 15mm 2 Meter size of 1 inch 25mm3 Meter size of 1 1/2 to 8 inch 40 to 200mm － ５５ －Waight approx 9 lb 4kg 10.2 Outline dimensions of LF414/LF620F－ ５６ － － ５７ － Waight approx 7 lb 3kg 10.3 Outline dimensions of LF414－ ５８ － － ５９ － Appendix 1-1 A system block diagram for LF414/LF600F, LF414/LF610F － ６０ －1-2 A system block diagram for LF414/LF620F － ６１ －2-1 A system block diagram for LF414 － ６２ －－ ６３ － Distributor Address NamePhone number （ Product codeFCF50017