Toshiba LF414 manual －４９－, ６Ｆ８Ａ０８７０, Electrical conductivity μS/cm

Page 50

６Ｆ８Ａ０８７０

Separate

Coating: No coating

(for meter sizes 1” to 4” (25 to 100 mm)), Phthalic acid resin coating, pearl-gray colored

(standard for meter size 1/2”, 6”, 8” (15,150, 200mm))

Structure: IP67 and NEMA 4X Watertight ( Standard )

Cable connection port: 3/4-14NPT male screw for both signal cable and exciting cable

Cable length: Allowable cable length between the converter and the detector varies with the electrical conductivity of fluid. See Figure 9.1

	300
	200
(m)	100
(m)
ケ	50
ー	50
ー
ブ
lengthル	30
許	20
容	20
容
cable
長
さ	10
〔m〕
Allowable	5
	5
	3
	3	5	10	20	30	50	100	200
			導電率〔μS/cm〕
		Electrical conductivity (μS/cm)

Figure 9.1 Electrical Conductivity vs. Cable Length

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Image 50

Contents ６Ｆ８Ａ０８７０ About Safety Precautions ６Ｆ８Ａ０８７０－１－ Integral type LF414/LF600F, LF414/LF610F, LF414/LF620FSafety symbols SAFETY PRECAUTIONSExplanation of signal words －２－DON’T SAFETY PRECAUTIONS Safety Precautions for Installation and Wiring－３－ „ Do not modify or disassemble the enclosureDON’T SAFETY PRECAUTIONS continuedSafety Precautions for Installation and Wiring －４－Usage limitation Safety Precautions for Maintenance and InspectionWarranty and Limitation of Liability －５－・Places where excessive vibration or mechanical shock occurs Handling Precautions－６－ 2 Wire cables correctly and securelyHandling Precautions continued －７－Table of Contents －８－1.2 Strage 1. Product Inspection and Storage1.1 Product Inspection －９－－１０－ Features2. Overview 5 Intelligent functions3.1.1 Appearance of LF414/LF600F, LF414/LF610F 3. Names of Parts3.1 Appearance Integral 1 Meter size of 1/2 inch 15mmFigure 3.1.2 Appearance of LF414/LF600F, LF610F Meter size 1 inch25mm 2 Meter size of 1inch 25mm－１２－ Ground terminal for converterFigure 3.1.3 Appearance of LF414/LF600F, LF610F 3 Meter size of 1 1/2 to 4 inch 40 to 100mm－１３－ Meter size 1 1/2 to 4 inch 40 to 100mmLifting Lugs 4 Meter size of 6 and 8 inch 150 and 200mm－１４－ providedFigure 3.1.5 Appearance of LF414/LF620F Meter size 1/2inch15mm 3.1.2 Appearance of LF414/LF620F－１５－ 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/LF620FMeter size 6 and 8 inch 150 and 200mm －１８－Figure 3.1.8 Appearance of LF414/LF620F Ground terminal for converter Lifting Lugs－１９－ 3.1.3 Appearance of LF414Separate 1 Meter size of 1/2 inch 15mm Signal cableFigure 3.1.10 Appearance of LF414 Meter size 1 inch25mm －２０－for Signal cable for Excitation cableFigure 3.1.11 Appearance of LF414 －２１－Signal cable Excitation cableMeter size 6 and 8 inch150 and 200mm －２２－Figure 3.1.12 Appearance of LF414 3.2.2 Terminal Block Construction of LF414 Type Signal cable terminal3.2 Construction of the terminal blocks －２３－－２４－ 4. InstallationSafety Precautions for Installation „ Use an appropriate device to carry and install－２５－ 4.1 Notes on Selecting the Installation Location4.2 Mounting Procedure 4.2.1 Pipe checks 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 torque4.3 Piping Connections 1a Ideal Upstream Straight Pipe Length Installation Requirements1b Optional “Mount Anywhere” Installation Mount-Anywhere Technology L=5DFigure 4.6 Installation position of the detector 2 Pipe Orientation－３０－ Figure 4.5 Detector Piping Orientation－３１－ 3 Flow Direction4 Preventing an Empty Pipe Condition Figure 4.7 Flow direction arrow on the detector－３２－ 4.4 Grounding1 Grounding of the LF414/LF620F type Figure 4.10 Grounding the LF414/LF620F Type2 Grounding of the LF414 type －３３－－３４－ 5.WiringSafety Precautions for Wiring „ Install a switch and fuse to isolate the ６Ｆ８Ａ０８７０－３５－ independently from power equipment. 100 ohm－３６－ Notes on wiring5.1 Cables Table 5.1 Installation Cables5.2 External Device Connections and Grounding 5.3 Notes on Wiring 5.3.1 Notes on Instrumentation-Converter Wiring5.3.2 Notes on Wiring of the Separate type LF414 －３７－Separate 2 Excitation cable 5.4 Wiring 5.4.1 Terminal Treatment of Cables1 Power cable, current output cable, digital I/O cables －３８－－３９－ 3 Connecting the input signal cableNotes on signal cable shield processing work Figure 5.3 Terminal Treatment of Flow Rate Signal CableFigure 5.5 Connecting a Cable to Terminal Block 5.4.2 Cable Connection－４０－－４１－ 6. OperationPreparatory check „ Check the wiring between the converter and related instruments－４２－ 7. Maintenance and TroubleshootingSafety precaution for Maintenance and Troubleshooting „ Do not conduct wiring work when power is appliedCheck/Replacement of the display unit 7.1 Maintenance„ Cleaning materials－４４－ 7.2 Troubleshooting7.2.1 Flow rate is not indicated START Are power supplies correct NO for each device? YESPerform the zero adjustment Refer to combined converters manual 7.2.2 Flow rate indicated is not correct－４５－ Clean the inside of the detector pipeIs power supply voltage 7.2.3 Flow rate indication is not stable－４６－ Use a power supply within the specified rangeSquare-Wave Excitation Figure 8.1 Principle of Operation 8. Principle of Operation－４７－－４８－ 9. Specifications9.1Specifications 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 RangeUnit gal/min －５１－Table 9.2 Flow velocity vs. flow volume 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－ 1 Meter size of 1/2 inch 15mm 10. Outline Dimensions10.1 Outline dimensions of LF414/LF600F, LF414/LF610F 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－Phone number （－６３－Distributor Address Name Product codeFCF50017

Electrical conductivity (μS/cm)

Figure 9.1 Electrical Conductivity vs. Cable Length

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