Instruction/ maintenance manual of the product LF620F Toshiba
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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 flu.
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.
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.
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.
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.
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 .
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.
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.
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 .
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.
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).
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.
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.
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 Comb.
An important point after buying a device Toshiba LF620F (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Toshiba LF620F yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Toshiba LF620F - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Toshiba LF620F you will learn all the available features of the product, as well as information on its operation. The information that you get Toshiba LF620F will certainly help you make a decision on the purchase.
If you already are a holder of Toshiba LF620F, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Toshiba LF620F.
However, one of the most important roles played by the user manual is to help in solving problems with Toshiba LF620F. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Toshiba LF620F along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
