Toshiba LF470/LF612 manual

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Table of contents for the manual

  • Page 1

    TIC-LF470B Field Intelligent Device Series Electromagnetic Flowmeter LF470/LF612 1/10",1/6”,1/4" (2.5,4,6mm ) Introduction The electromagnetic flowmeter uses F araday’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 l[...]

  • Page 2

    TIC-LF470B 2  Model LF470 Detectors Fluid pressure: - 15 to 150 psi, or - 1.0 to 10 bar (-0.1 to 1 MPa) Principal materials: Measurement tube – Alumina ceramics Electrodes – Platinum Pipe connection port: Standard – 316 stainless steel Option – Ti (titanium), Polyvinyl chloride (shock-resistant)+ Ta (Tantalum) for grounding plate, Polyvi[...]

  • Page 3

    TIC-LF470B 3 Communications output : • HART (std.) — Digital signal is superimposed on 4–20mAdc current signal as follows: Conforms to HART protocol Load resistance: 240 to 750 Ω Load capacitance: 0.25µF maximum Load inductance: 4mH maximum • PROFIBUS(opt.) Protocol: PROFIBUS-PA Baud rate: 31.25kbps Bus voltage: 9-30VDC Consumption ele[...]

  • Page 4

    TIC-LF470B 4 Installation  Dimensions If a mounting plate is needed for the LF470, fix the plate (a) above to the bottom of the LF470. Depending on which pair of screw holes used, the mounting angle changes by 90 ° . 2. 20 ( 56 ) 1. 4 6 ( 3 7) 2 .7 6 ( 7 0) T hi s l engt h be com e s 7 8 m m i f t he p i pe c o nn e c ti o n p o r t t hr e ad i[...]

  • Page 5

    TIC-LF470B 5 T erminal bo ard Connec ted detec tor IV wir e 5.5 mm 2 or more Powe r switch (Exte rnal doubl e-pole power sw itch ) Thi ck wall ed st eel con du it Sign al ca ble Pow er cabl e (CVV) Digital input ca ble (CVV -S) Curre nt out put (4~ 20mAdc) or PROFIBUS Gro unded with 10 0 Ω or less gro und re sista nce (2-wire shielded hard-rubber[...]

  • Page 6

    TIC-LF470B 6  Wiring Precautions (1) Connect the following two cables correctly: 1) signal cable (on the right facing the LF470) 2) excitation cable (on the left facing the LF470) (2) Do not bend apply excessive force to these cables.  Piping Precautions (1) Connect the fluid pipe to the pipe connection port using a joint that matches the Rc [...]

  • Page 7

    TIC-LF470B 7 Model Specification Code 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Description L F 4 7 0 LF470 Flowmeter M e t e r s i z e 2 1/10" (2.5 mm ) 4 1/6" (4 mm ) 6 1/4" (6 mm ) Converter ( Separate type ) combined D LF612 E LF232 (Note 1) Pipe connection port (adapter) A Rc (PT) 1/4 female screw (standard) B R c ( P T ) 1 / 8 f e m a l[...]

  • Page 8

    TIC-LF470B TIC-LF470B Misuse of this product ca n result in damage to property or human injury. Read related manu als carefully before u sing this product. ISO9001 and ISO1400 1 are certified. Model Specification Code 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Contents L F 6 1 Electromagnetic flowmeter converter LF612 type 2 Separate (R emote) type  A Pur[...]