Toshiba LF414 manual Maintenance, „ Cleaning, materials, „ Mag-Prover Built-In Calibrator, - 43 -

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7.1 Maintenance

6F8A0870

7.1 Maintenance

„Cleaning

„Adhesion might be created in the detectore over a long period of time when used on certain

materials.

Try to confirm whether to cause the adhesion in the detector pipe when the phenomenon is seen, and and an abnormality (ex. decreasing indication, etc.) is confirmed.

Please clean with a soft brush etc. and remove any unnecessary build up inside the meter. When using it in the line to which such a phenomenon occurs easily, it is recommended that the detector pipe be cleaned regularly. Use new gaskets when reinstalling the flowmeter detector in the pipeline.

„Mag-Prover Built-In Calibrator

The converter has a built-in reference signal calibration and verification circuit that allows you to re-verify the original magmeter flow lab calibration without the need for external devices. This reference signal can be used to check the zero and span of the converter for the purpose of instrumentation maintenance or periodical inspection. Refer to combined converter's manual.

„Operative life

The operative life of this flowmeter is 10 years from the date of shipment.

The life of the flowmeter differs depending on the environmental conditions and the way it was used. To extend the life of the flowmeter, inspect the flowmeter periodically and clean or replace components if necessary.

„Product disposal

The electromagnetic flowmeter must be disposed of, according to the rules and regulations of your local government.

Especially if you dispose of electrolytic capacitors to replace parts, have it done by an agency which is licensed to handle industry waste materials.

„

Integral

Check/Replacement of the display unit

When characters displayed on the LCD display become thin or blots come out, please adjust the setting of LCD's display density. If the display is still not improved, the display unit comes to the end of its life. Please replace the display unit with a new one. In order to use the display unit stably for a long time, it is preferable to replace it early. For inspection and replacement, please contact your nearest Toshiba representative.

„

Integral

Power supply unit (also used for excitation board)

Electronic components deteriorate faster when the ambient temperature is high. The life of the power supply unit in the converter is 9 to 10 years if the ambient temperature is 40°C, and 5 to 6 years if it is 50° C. To extend the life of the flowmeter, we recommend you replace the power supply unit early.

Contact your nearest Toshiba representative for a flowmeter inspection or unit replacement.

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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