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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Toshiba LF654 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Toshiba LF654, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Toshiba service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Toshiba LF654.
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Table of contents for the manual
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Page 1
TIC-LF654L Introduction The electromagnetic flowmeter uses Faraday’s Law of electromagnetic induction to measure the process flow. The device consists of two units: a detector, through which the fluid to be measured flows and in which low-level signals proportional to flow rates are obtained; and a converter, which supplies excitation current to [...]
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Page 2
TIC-LF654L 2 Fluid conductivity: 3µS/cm minim um Fluid temperature: -4 to 248 °F ( - 20 to +120 °C): PFA lined flowmeter -4 to 140 °F ( - 20 to +60 °C): Polyurethane lined flowmeter 23 to 176 °F ( - 5to +80 °C): Hard Rubber lined flowmeter Ambient temperature: -40 to 140 °F ( - 40 to +60 °C): PFA lined flowmeter -4 to 140 °F (-20 to +60 ?[...]
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Page 3
TIC-LF654L 3 Model LF620 and LF622 converters Input signals Analog signal — the voltage signal from detector, proportional to process flow rate (for LF622 separate type converter). Digital input DI Signal type: 20 to 30Vdc voltage signal Input resistance: 2.7k Number of inputs: one point Note: DI cannot be used with the Modbus communicati[...]
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Page 4
TIC-LF654L 4 LCD display: Full dot-matrix 128×128 dot LCD displ ay (back–light provided) A parameter change will rotate the display. Parameter settings — Parameters can be set as follows: • IR Swit ches : Three key switches are provided to set configuration parameters. • Digital communication : HART, PROFIBUS or Modbus is needed to set par[...]
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Page 5
TIC-LF654L 5 Installation Dimensions Note1: Eye bolts ar e provided at the top f or flowmeters sized 8" (200 mm) or above, and further, a roll-p revention base is provided for flowmeters sized 10" (250mm) or larger. Note2: Cable glands are not provided for LF654 of cFMus approved type. Refer to the cable connection port at converter. [...]
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Page 6
TIC-LF654L 6 ASME B 16.5 class 150 dimensions: EN 1092-1 PN16 dimensions: Meter size (mm) L1 (mm) L2 (mm) L3 (mm) No. of bolts Weight (kg) 15 200 203 251 4 a p p r ox . 6 . 0 25 200 209 272 4 a p p r ox . 7 . 5 32 200 217 285 4 a p p r ox . 1 0 . 0 40 200 218 288 4 a p p r ox . 1 0 . 5 50 200 232 310 4 a p p r ox . 1 5 . 0 65 2 0 0 237 325 4 approx[...]
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Page 7
TIC-LF654L 7 ASME B 16.5 class 150 dimensions: Meter size (inch) L1 (inch) L2 (inch) L3 (inch) No. of bolts Weight (lbs) 1/2 5.51 6.77 8.54 4 appr ox. 9.0 1 6.30 7.01 9.13 4 approx. 14.0 1-1/4 7.87 7.32 9.65 4 approx. 18.0 1-1/2 6.69 7.36 9.88 4 approx. 18.0 2 7.09 7.80 10.79 4 approx. 27.0 2-1/2 7.87 7.99 11.50 4 approx. 36.0 3 9.06 8.39 12.13 4 a[...]
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Page 8
TIC-LF654L 8 ASME B 16.5 class 150 dimensions: Meter size (inch) L1 (inch) L2 (inch) L3 (inch) No. of bolts Weight (lbs) 1/2 7.90 6.77 8.54 4 approx. 9.0 1 7.90 7.01 9.13 4 approx. 14.0 1-1/4 7.90 7.32 9.65 4 approx. 18.0 1-1/2 7.90 7.36 9.88 4 approx. 18.0 2 7.90 7.80 10.79 4 approx. 27. 0 2-1/2 7.90 7.99 11.50 4 approx. 36.0 3 7.90 8.39 12.13 4 a[...]
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Page 9
TIC-LF654L 9 Figure 7. Separate type converter LF622 and LF622F External Connections ● Combined type LF650/LF620 flowme ter and LF654/LF620F flowmeters Grounding w it h 100 Ω or les s ground res is t anc e I ns t ru m ent panel : Ordered s eparat el y I / O c able Ⅳ wi r e 5 . 5 m m 2 or m ore C urrent out put ( 4 ∼ 20m Adc ) or PR OF I [...]
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Page 10
TIC-LF654L 10 ● Separate type LF650/LF622 flowmeter and LF654/LF622F fl owmeter G roun di ng w it h 100 Ω or l es s ground resis t anc e I ns t rum e n t pane l : O r d ere d s epa ra t e l y I / O c able G round ing w it h 1 0 0 Ω or l es s ground res is t anc e Ⅳ w ire 5. 5m m 2 or m ore C u rre nt outpu t (4 ∼ 20 m A d c ) o r PR O FI B [...]
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Page 11
TIC-LF654L 11 Wiring Precautions (1) Explosion proof type flowmeters are not provided with cable glands. Refer to the part Cable connection port at detector and converter. (2) Connect the grounding wire (IV wire 5.5mm ² or more) to a good earth ground (100 or less ground resistance). Make the wire as short as possible. Do not use a common [...]
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Page 12
TIC-LF654L 12 T able 3. Flow Rate and Flow velocity (SI unit) Unit: m 3 /h Size (mm) Flow rate 0.1 m/s 0.3 m/s 1.0 m/s 3.0 m/s 12 m/s 15 0.06362 0.1908 0.6361 1.908 7.634 25 0.1767 0.5301 1.767 5.301 21.21 32 0.2895 0.8686 2.895 8.686 34.74 40 0.4523 1.357 4.523 13.57 54.29 50 0.7067 2.120 7.067 21.20 84.82 65 1.195 3.583 1 1.95 35.83 143.4 80 1.80[...]
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Page 13
TIC-LF654L 14 T able 4. Specification Code (Flange type detector LF654 Series) Model Spec ification Code Descripti on Detector ca tegory 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Gr.-A Gr.-B L F 6 5 Flange type electroma gnetic flowme ter detector 4 Usage cFMus Class 1 Division 2 Hazardous Location √ √ M e t e r s i z e D ½ " ( 1 5 m m ) √ E 1&q[...]
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Page 14
TIC-LF654L 15 T able 5. Specification Code for co nverters Model Spec ification Code Contents LF620 type LF622 type 1 2 3 4 5 6 7 8 9 10 1 1 12 13 14 L F 6 2 Electromagnetic flowmeter converter 0 Combined (Integral) type – 2 Separate (Remote) type – F P u r p o s e cFMus class I, Division 2 approved A S h a p e Standard type[...]