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Toshiba LF232*F manual

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Table of contents for the manual

  • Page 1

    TIC-LF502A Introduction The LF502 electromagnetic flowmeter uses Faraday’s Law of electromagnetic induction in the same way as conventional electromagnetic flowmeters to measure the flow rate. Position of electrodes in the LF502 is so designed that it can be used even in a partially-filled pipe to measure the flow rate. Improved functional magnet[...]

  • Page 2

    TIC-LF502A 2 Required straight pipe length: 10D minimum on upstream side and 5D minimum on downstream side Note: D is a nominal m eter size. Fluid conductivity: 100µS/cm minimum Fluid temperature: 32 to 131 °F (0 to 55 °C ) Ambient temperature: 14 to 122 °F (-10 to 50 °C ) Dimensions and Weights: See figures 3 to 5. Power supply: 100 to 120 V [...]

  • Page 3

    TIC-LF502A 3 independently) In the case of DO1 Pulse rate: 3.6 to 3,600,000 pulses/h Pulse width:Settable within the range of 0.3 to 500ms In the case of DO2 Pulse rate: 3.6 to 360,000 pulses/h Pulse width: Settable within the range of 4 to 500ms • Rage switching output One Digital Output (DO) is used ･ Single direction, 2-range switching signa[...]

  • Page 4

    TIC-LF502A 4 Installation ■ Dimensions Separate type LF502 (Meter size 6” and 8”) Un it: in c h (m m ) 1.5 7 ( 40) 4.96 ( 126) 5. 63 (143 ) 1.42 ( 36) 3.46 ( 88) Figure 3. Detector Dimensions for Meter Sizes 6” (150 mm) and 8” (200 mm ) See the following tables for dimensions of L1, L2 and L3 in Figure 3 above, and the number of bolts req[...]

  • Page 5

    TIC-LF502A 5 ■ Dimensions Figure 5. Separate type converter LF232 ＊ F 8.74 (222) 2.91 (74) 9.33 (237) 4- φ 12 hole 6.10 (155) 14.57(370) 15.75 (400) 2.99 (76) 2.99 (76) 2.99 (76) 1.57 2.17(55) 370 74 11～ 12φ 穴 (4ヵ 所 ) パネル取付穴加工寸法 据付方法 据付け は 、 パネ ル( 壁面) 取付け か パイ プ取付け ?[...]

  • Page 6

    TIC-LF502A 6 ■ External Connections Figure 6. LF502/LF232*F flowmeter Wiring Diagram ■ Wiring Precautions (1) Be sure to use thick walled steel conduit (22 mm) for signal and excitation cable wiring between the detector and converter. The conduit screw is R (PT)1/2. Use flexible conduits at the cable outlets of the detector as needed. (2) Make [...]

  • Page 7

    TIC-LF502A 7 ■ Piping Precautions (1) Flange connection The flowmeter has upstream and downstream flanges on the ends of detector pipe. Connect these flanges with the flanges on both sides of pipeline bore using connection bolts after inserting a gasket between them. See Figure 7. Tighten the bolts in even increments diagonally across. Figure 7. [...]

  • Page 8

    TIC-LF502A TIC-LF502A Table 1. Specification Code for LF502 detec tor Model Specific ation Code Size 1 2 3 4 5 6 7 8 9 10 11 12 Description A B L F 5 0 2 LF502 Electrom agnetic flowmeter M e t e r s i z e K 6" (150mm )  - L 8" (200mm )  - M 10" (250mm )  - N 12" (300mm )  - P 14" (350mm )  - Q R S 16" (4[...]