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LF494/LF610
Field Intelligent Device Series
LF494/LF612
Sanitary Electromagnetic Flowmeter
1S to 4S (25 to 100 mm)
Introduction
Sanitary electromagnetic flowmeters LF490 series are
designed for applications handling food and beverages.
Sanitary flowmeters must be structured in such a way
that operation and handling is simple, easy and
thorough for the purpose of sanitary control such as
cleaning (CIP/SIP), sterilization and drying. The
sanitary flowmeter has features provided
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TIC-LF494B Note : The test results were obtained and demonstrated at Specifications TOSHIBA's flow calibration facility, Fuchu Japan. Overall Specifications Measurement range in terms of flow velocity: Model LF490 and LF494 Detectors 0 –1.0 ft/s to 0 – 32.8 ft/s (0 – 0.3 m/s to 0 –10 m/s) Fluid pressure: 0 – 0.3 ft/s to 0 – 1.0 ft/s (0 – 0.1 m/s to 0 – 0.3 m/s) –15 to 300 psi, or –1.0 to 20 bar (–0.1 to 2.0 MPa) range is available optionally. Note: This pressure is the allow
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TIC-LF494B Model LF610 and LF612 converters • Converter failure alarm output Note 1: Two outputs (DO1 and DO2) are needed Input signals for 4-range switching and forward/reverse Analog signal — the voltage signal from detector, 2-range switching. proportional to process flow rate (for LF612 Note 2: Normal Open (default set) or Normal separate type converter). Close is selected for alarm outputs when Digital input DI (opt.) programming. Signal type: 20 to 30Vdc voltage signal
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TIC-LF494B • Digital output: OFF • LCD display: No display • PROFIBUS: No communication Power supply: One of the following can be selected: • 100 to 240Vac, 50/60Hz (std.) (allowable voltage 80 to 264Vac) • 24Vdc (allowable voltage 18 to 36Vdc) • 110Vdc (allowable voltage 90 to 130Vdc) Surge protection: Arresters are installed in the power supply, and a current signal output circuit to help protect the meter from lightning and improve personnel safety. Case: Aluminum alloy (e
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TIC-LF494B Installation Dimensions (Combined type) Clamp connection Unit : inch(mm) Welding connection Unit : inch(mm) 8.86(225) 1.42(36) 5.63(143) 5.16(131) 8.86(225) 1.42(36) 5.63(143) L1 Note1: L1 dimension is for the standard (Normal length) Note1: Clamp (Joint) size is different from meter size of type ferrule. LF490 and LF494. See the following table. Note2: Cable glands are not provided for cFMus Note2: See Figure 7 for Ferrule dimensions. appr
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TIC-LF494B Dimensions (Separate type) Clamp connection Welding connection Unit : inch(mm) Unit : inch(mm) 4.96(126) 3.46(88) 3. 46(88) 4.96(126) 1.57(40) 3.58(91) 1.38(36) 3.58(91) 1.57(40) 1.38(36) R(PT)1/2 Male screw R(PT)1/2 2 Male screw D φ (L2) ΦD１ φD1 L1 L1 (単位：mm) Note1: Clamp (Joint) size is different from meter size Note1: L1 dimension is for the standard (Normal of LF490. See the following table. length) type ferrule. Note2: Cable glands are n
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TIC-LF494B LF490, Pipe LF494 (welding) Detectors Normal type For English unit Meter size Joint size L1 L2 D1 D2 D3 Weight (inch) (inch) (inch) (inch) (inch) (lbs) (inch) (ISO2852) 1 (1S) 2 S 0.85 0.11 2.52 0.91 1.00 Approx.0.4 1-1/2 2 1/2 S 0.85 0.11 3.05 1.41 1.50 Approx. 0.4 (1-1/2S) 2 (2S) 3 S 0.85 0.11 3.58 1.88 2.00 Approx. 0.7 3 (3S) 1.10 0.11 4.69 2.85 3.00 4 S Approx. 1.1 4 (4S) 5 1/2S 1.10 0.22 6.10 3.84 4.00 Approx. 2.2 Normal type For SI unit
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TIC-LF494B 4 – 4－ φ φ 0. 1143(φ11) Unit : inch(mm) 3.23(82) 5.94(151) 0.98(25) 0.51(13) 151 25 82 13 A 取付金具 ttachment 2.91(74) LCD display 74 ±0.3 LCD 表示器 Excitation cable ground 励磁ケーブルグランド I/電流出力ケ O cable grー ouブルグ nd ランド Ground terminal 接地端子 (M4) (M4) 取付金具 Power supply cable ground Signal cable ground 信号ケーブル 電源ケーブルグランド グランド Blind screw 封止栓 IR Switch 赤外線スイッチ 矢視A Cable ground ケーブルグランド 矢視A (単位： mm) Figure 8. Separate type converter LF612 and LF612F External Connections Comb
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TIC-LF494B Separate type LF490/LF612 and LF494/LF612F flowmeters Terminal board IV wire 2 5.5 mm or more Thick walled steel conduit Grounded with 100 Ω or less ground resistance Power switch (External double-pole power switch ) [Instrument panel : ordered separately] Grounded with 100 Ω or Signal cable less ground resistance (2-wire shielded hard-rubber Power supply sheathed cable) Current output (4~20mAdc) or PROFIBUS Digital output 1 Signal common for DI and DO Conn
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TIC-LF494B Wiring Precautions (7) Only one PROFIBUS-PA cable goes through a (1) Explosion proof type flowmeters are not cable gland of the Electromagnetic Flowmeter. provided cable glands. Please use the junction box at system Refer to the part Cable connection port at configuration. detector and converter. (2) Connect the grounding wire (IV wire 5.5mm² or more) to a good earth ground (100Ω or less 300 200 ground resistance). Make the wire as short as 100 possible. Do not u
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TIC-LF494B Calibration Range About establishment environment If the calibration range is not specified, the standard Do not store or install the flowmeter : range as shown below will be used. If the range is specified, we will use the specified range for • Where there is direct sunlight. calibration. • Where excessive vibration or mechanical shock occurs. Table 4. Standard Flow Range • Where high temperature or high humidity Standard flow range Meter size conditions exist.
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TIC-LF494B Table 5. Specification Code (Sanitary type detector LF490 Series) Model Specification Code Type Description 1 2 3 4 5 6 7 8 9 10 1112 13 14 Normal Ex. type L F 4 9 0 Normal specification type √ L F 4 9 4 Hazardous location certification type (Note 1) √ Meter size (Clamp size) E 1"(25mm) (2S) √ √ F 1 1/2"(40mm) (2 1/2S) √ √ G 2"(50mm) (3S) √ √ H 3"(80mm) (4S) √ √ J 4"(100m
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TIC-LF494B Table 6. Specification Code for converters Model Specification Code LF600 LF602 Contents type type 1 2 3 4 5 6 7 8 9 1011 12 13 14 L F 6 1 Electromagnetic flowmeter converter 0 Combined (Integral) type – 2 Separate (Remote) type – Purpose A Standard F cFMus class I, Division 2 approved Shape A Integral type with case – – B Separate type with case Converter mounting
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TIC-LF494B ISO9001 and ISO14001 are certified. Specifications are subject to change without notice. Misuse of this product can result in damages to property or human injury. Printed in Japan 2008-5 (TDOC) Read related manuals carefully before using this product. © TOSHIBA Corporation 2008 All Rights Reserved. http://www.toshiba.com/ind/ TIC-LF494B
