Toshiba LF414 manual Handling Precautions, - 6 -, 6F8A0870, ・Places submerged under water

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Handling Precautions

6F8A0870

Handling Precautions

To obtain the optimum performance from the LF600F, LF610F, LF620F, LF602F, LF612F and LF622F converter for years of continuous operation, observe the following precautions.

(1)Do not store or install the flowmeter in: Places where there is direct sunlight.

Places where there is snow and ice Infrared switches may not function correctly.

Places where excessive vibration or mechanical shock occurs.

Places where high temperature or high humidity conditions obtain. Places where corrosive atmospheres exist.

Places submerged under water.

Places where there is a sloped floor. To put the flowmeter temporarily on the floor, place it carefully with something, such as a block, to support it so that the flowmeter will not topple over.

Places where there is following factors.

￿Factors to impede infrared switch to operate properly

Intense light such as direct sunlight and reflected sunlight by window glass or metal plate Place where brightness changes suddenly such as ON/OFF of lighting

Dense smoke or steam near the control panel

Those attached on the control panel such as rain (dew drop), snow, ice, mud and oil, and haze due to their attachment

Light reflecting object near the control panel, or reflecting object such as metal plate placed opposing to the control panel

When any of above factors is considered, take a measure for the proper operation of infrared switch such as to place a cover or to secure a space for at least a person to stand in front of the control panel.

When unable to avoid above factors, operate the EMF converter removing the factor by covering the control panel by hand so that light does not shine on it, by cleaning those attached on the control panel, or by standing in-between the reflecting object and the control panel to block the light.

(2)Wire cables correctly and securely.

Be sure to ground at the converter side (grounding resistance 100Ω or less).

Avoid a common ground used with other equipment where earth current may flow. An independent ground is preferable

(3)Select cable paths away from electrical equipment (motors, transformers, or radio transmitters), which causes electromagnetic or electrostatic interference.

(4)The apparatus should not be provided with the cable connections.

Please prepare yourself for the cable connections which could be used in Division2 hazardous locations.

The cable lead-in section must be tightened securely to keep air tightness.

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Contents 6F8A0870 Integral type LF414/LF600F, LF414/LF610F, LF414/LF620F 6F8A0870- 1 - About Safety Precautions- 2 - SAFETY PRECAUTIONSExplanation of signal words Safety symbols„ Do not modify or disassemble the enclosure SAFETY PRECAUTIONS Safety Precautions for Installation and Wiring- 3 - DON’T- 4 - SAFETY PRECAUTIONS continuedSafety Precautions for Installation and Wiring DON’T- 5 - Safety Precautions for Maintenance and InspectionWarranty and Limitation of Liability Usage limitation2 Wire cables correctly and securely Handling Precautions- 6 - ・Places where excessive vibration or mechanical shock occurs- 7 - Handling Precautions continued- 8 - Table of Contents- 9 - 1. Product Inspection and Storage1.1 Product Inspection 1.2 Strage5 Intelligent functions Features2. Overview - 10 -Integral 1 Meter size of 1/2 inch 15mm 3. Names of Parts3.1 Appearance 3.1.1 Appearance of LF414/LF600F, LF414/LF610FGround terminal for converter 2 Meter size of 1inch 25mm- 12 - Figure 3.1.2 Appearance of LF414/LF600F, LF610F Meter size 1 inch25mmMeter size 1 1/2 to 4 inch 40 to 100mm 3 Meter size of 1 1/2 to 4 inch 40 to 100mm- 13 - Figure 3.1.3 Appearance of LF414/LF600F, LF610Fprovided 4 Meter size of 6 and 8 inch 150 and 200mm- 14 - Lifting LugsGround terminal for converter Flow direction arrow Detector 3.1.2 Appearance of LF414/LF620F- 15 - Figure 3.1.5 Appearance of LF414/LF620F Meter size 1/2inch15mmFigure 3.1.6 Appearance of LF414/LF620F Meter size 1 inch25mm - 16 -Ground terminal for converter Flow direction arrow Figure 3.1.7 Appearance of LF414/LF620F - 17 -Ground terminal for converter Lifting Lugs - 18 -Figure 3.1.8 Appearance of LF414/LF620F Meter size 6 and 8 inch 150 and 200mmSignal cable 3.1.3 Appearance of LF414Separate 1 Meter size of 1/2 inch 15mm - 19 -for Excitation cable - 20 -for Signal cable Figure 3.1.10 Appearance of LF414 Meter size 1 inch25mmExcitation cable - 21 -Signal cable Figure 3.1.11 Appearance of LF414Figure 3.1.12 Appearance of LF414 - 22 -Meter size 6 and 8 inch150 and 200mm - 23 - Signal cable terminal3.2 Construction of the terminal blocks 3.2.2 Terminal Block Construction of LF414 Type„ Use an appropriate device to carry and install 4. InstallationSafety Precautions for Installation - 24 -2. Avoid places where excessive pipe vibration occurs 4.1 Notes on Selecting the Installation Location4.2 Mounting Procedure 4.2.1 Pipe checks - 25 -Figure 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 connections Table 4.1 Bolt length and Nut tightening torque - 28 -L=5D 1a Ideal Upstream Straight Pipe Length Installation Requirements1b Optional “Mount Anywhere” Installation Mount-Anywhere Technology 4.3 Piping ConnectionsFigure 4.5 Detector Piping Orientation 2 Pipe Orientation- 30 - Figure 4.6 Installation position of the detectorFigure 4.7 Flow direction arrow on the detector 3 Flow Direction4 Preventing an Empty Pipe Condition - 31 -Figure 4.10 Grounding the LF414/LF620F Type 4.4 Grounding1 Grounding of the LF414/LF620F type - 32 -- 33 - 2 Grounding of the LF414 typeSafety Precautions for Wiring 5.Wiring- 34 - independently from power equipment. 100 ohm 6F8A0870- 35 - „ Install a switch and fuse to isolate theTable 5.1 Installation Cables Notes on wiring5.1 Cables - 36 -- 37 - 5.3 Notes on Wiring 5.3.1 Notes on Instrumentation-Converter Wiring5.3.2 Notes on Wiring of the Separate type LF414 5.2 External Device Connections and Grounding- 38 - 5.4 Wiring 5.4.1 Terminal Treatment of Cables1 Power cable, current output cable, digital I/O cables Separate 2 Excitation cableFigure 5.3 Terminal Treatment of Flow Rate Signal Cable 3 Connecting the input signal cableNotes on signal cable shield processing work - 39 -- 40 - 5.4.2 Cable ConnectionFigure 5.5 Connecting a Cable to Terminal Block „ Check the wiring between the converter and related instruments 6. OperationPreparatory check - 41 -„ Do not conduct wiring work when power is applied 7. Maintenance and TroubleshootingSafety precaution for Maintenance and Troubleshooting - 42 -materials 7.1 Maintenance„ Cleaning Check/Replacement of the display unitSTART Are power supplies correct NO for each device? YES 7.2 Troubleshooting7.2.1 Flow rate is not indicated - 44 -Clean the inside of the detector pipe 7.2.2 Flow rate indicated is not correct- 45 - Perform the zero adjustment Refer to combined converters manualUse a power supply within the specified range 7.2.3 Flow rate indication is not stable- 46 - Is power supply voltage- 47 - 8. Principle of OperationSquare-Wave Excitation Figure 8.1 Principle of Operation Measurement range in terms of flow velocity 9. Specifications9.1Specifications - 48 -Electrical conductivity μS/cm - 49 -Figure 9.1 Electrical Conductivity vs. Cable Length Table 9.1 Standard Flow Range - 50 -Unit m3/h - 51 -Table 9.2 Flow velocity vs. flow volume Unit gal/min- 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 diameter 2 Meter size of 1 inch 25mm 10. Outline Dimensions10.1 Outline dimensions of LF414/LF600F, LF414/LF610F 1 Meter size of 1/2 inch 15mm- 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 LF414Product code - 63 -Distributor Address Name Phone number (FCF50017