Toshiba LF654 Instruction Manual

Text of Toshiba LF654 User Guide:

• Toshiba LF654, − ９ − ６Ｆ８Ａ０９２６ 1. Product Inspection and Storage 1.1 Product Inspection LF654 series electromagnetic flowmeter is shipped in a cardboard container filled with shock-absorbing materials. Open the package carefully and check as follows:  Make sure the following items are included in the package. For the integral type (when a converter and detector are united) Electromagnetic flowmeter main unit --------------------------------- 1 unit Instruction manual----------------One each for the converter

• Toshiba LF654, − ２１ − ６Ｆ８Ａ０９２６ (2) Pipe Orientation The detector may be installed in horizontal, vertical or sloping pipe runs as shown in Figure 4.6. However, except for horizontal installation, fluid should flow from lower to upper directions. If no air bubble, Vertical down flow application are acceptable under pressured piping conditions. See Figure 4.6. Figure 4.6 Detector Piping Orientation The electrodes should be positioned horizontally relative to the ground surface i

• Toshiba LF654, − ３０ − ６Ｆ８Ａ０９２６ 5.4.2 Cable Connection Connect and install the terminal-treated cables to the terminal block. *Connect the cables to the terminal block securely. A loose connection may cause incorrect measurement. After connecting a cable, try to pull it to check whether it has been connected securely. (1)Referring to combined converter's manuals of "Connections and Grounding", connect each cable to the terminal block. Tighten the screws of the terminal block tightly to ensure a secure connection. A loose connection may cause incorrec

• Toshiba LF654, − ２ − ６Ｆ８Ａ０９２６ SAFETY PRECAUTIONS Safety signs and labels affixed to the product and/or described in this manual give important information for using the product safely. They help prevent damage to property and obviate hazards for persons using the product. Make yourself familiar with signal words and symbols used for safety signs and labels. Then read the safety precautions that follow to prevent an accident involving personal injury, death or damage to property. Explanation of signal wo

• − ４３ − ６Ｆ８Ａ０９２６ Table 9.4 Type Specification Code (Exciting Cable and Signal Cable) Model Specification Code 1 2 3 4 5 6 7 8 Description A C C Dedicated preformed cable A B Nominal cross-sectional area of Exciting cable (Note 1) 1.25 mm² 2 mm² A Nominal cross-sectional area of Signal c

• − １２ − ６Ｆ８Ａ０９２６ 3.1.2 Appearance of LF654 for Excitation cable 1/2 - 14 NPT for Signal cable 1/2 - 14 NPT Flow direction arrow Terminal Box Cover Flan g e Terminal Box Ground terminal for detector Liftin g Lu g s *Provided for 8 inch

• Toshiba LF654, − １３ − ６Ｆ８Ａ０９２６ 3.2 Construction of the terminal blocks 3.2.1 Terminal Block Construction of LF654/LF620F Type For details of the converter, check the LF620F converter's instruction manual. 3.2.2 Terminal Block Construction of LF654 Type Figure 3.2.2 Terminal Block of LF654 To signal cable terminal (A,B and G) To excitation cable terminal(X,Y and E) B E Y A G X Don’t connect wir

• Toshiba LF654, − ４４ − ６Ｆ８Ａ０９２６ 10. Outline Dimensions 10.1 Outline dimensions of LF654/LF620F (1) Meter size of 1/2 inch to 8 inch (15mm to 200mm) Meter size L1 inch (mm) L3 inch (mm) inch mm Toshiba length ISO length L2 inch (mm) ANSI 150 Mass *1 lb 1/2" 15 5.51 (140) 7.87 (200) 8.07 (205) 9.84 (250) approx. 11 1" 25 6.30 (160) 7.87 (200) 8.31 (211) 10.43 (265) approx. 16 1 1/4" 32 7.87 (2

• Toshiba LF654, − ７ − ６Ｆ８Ａ０９２６ Handling Precautions (continued) (5) If the inside of the converter and detector's terminal box are wetted or humidified, it may cause insulation deterioration, which can result in fault or noise occurrence. So do not conduct wiring in the open air on rainy days. Also, be careful not to wet down the converter and detector's terminal box even in the case of indoor wiring, and complete wiring work in a short period of time. (6) Observe the following precautions when you open the converter housing cover: • Do not open the cover in the open air unprotected aga

• Toshiba LF654, − １６ − ６Ｆ８Ａ０９２６ (2) Preventing an Empty Pipe Condition Fix the relevant pipes installed on both sides of the detector by attaching fittings, etc. to support the pipe. By supporting the pipes, not only the pipe vibration is reduced but also the damage to the pipes by the electromagnetic flowmeter's weight and the fluid mass (see Figures 4.2 and 4.3). Figure 4.2 Example of Pipe Fixing Procedure Figure 4.3 Model Diagram of Unsupported Pipes

• Toshiba LF654, − ２５ − ６Ｆ８Ａ０９２６ 5.Wiring Safety Precautions for Wiring WARNING  DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS LOCATION IS KNOWN TO BE NONHAZARDOUS. DON’T Live part of electric circuit or a high temperature department can cause explosion.  Do not active live circuits While assembly of all components is not over. DON’T Protective performance degradation for hazardous location can cause explosion.  Install per the National Electrical Code for the US (NEC, ANSI/NFPA 70) and the Canadian Electri

• Toshiba LF654, − １８ − ６Ｆ８Ａ０９２６ Table 4.1 Bolt length and Nut tightening torque *1: 1[N･m] is 0.7376 [ft･lbf]. ANSI class 150 Machine Bolts Meter size P.C.S Diameter Length [inch] Tightening torque [N･m] *1 15mm 1/2” 4 1/2” 2” 7 to 9 25mm 1” 4 1/2” 2.16” 14 to 17 32mm 1 1/4” 4 1/2” 2.16” 19 to 24 40mm 1 1/2�

• Toshiba LF654, − １５ − ６Ｆ８Ａ０９２６ 4.1 Notes on Selecting the Installation Location 1. Avoid places within the immediate proximity of equipment producing electrical interference (such as motors, transformers, radio transmitters, electrolytic cells, or other equipment causing electromagnetic or electrostatic interference). 2. Avoid places where excessive pipe vibration occurs. 3. Avoid places where fluid is pumped in a pulsating manner. 4. Avoid places where there is direct sunlight. If this is unavoidable, use an appropriate shade 5. Avoid places where corrosive atmospheres or high

• Toshiba LF654, − ２０ − ６Ｆ８Ａ０９２６ 4.3 Piping Connections (1-a) Ideal Upstream Straight Pipe Length Installation Requirements If various joints are used upstream of the detector outlet, the straight pipe length as shown in Table 4.2 is required. Table 4.2 Required straight pipe length on the upstream side L: Required straight pipe length—straight pipe length plus half length of the detector. D: Nominal bore size (diameter) NOTES The length of

• Toshiba LF654, − ３９ − ６Ｆ８Ａ０９２６ Coating: Polyurethane resin coating (std.) gray colored Structure: IP67 and NEMA 4X ( Standard ) Option: IP 68 and NEMA 6P Submersible type Specification of Submersible type Structure: Separate type only (except PFA lining is available.) Range of underwater: within 15m Coating: tar epoxy resin, thickness 0.5 mm Executed evaluation test: It is confirmed that i

• Toshiba LF654, − ４５ − ６Ｆ８Ａ０９２６ (2) Meter size of 10 inch to 18 inch (250mm to 450mm) Meter size L1 inch (mm) L3 inch (mm) inch mm Toshiba length ISO length L2 inch (mm) ANSI 150 Mass *1 lb 10" 250 13.87 (350) 17.72 (450) 13.15 (334) 21.14 (537) approx. 207 12" 300 15.75 (400) 19.69 (500) 14.65 (372) 24.13 (613) approx. 315 14” 350 17.72 (450) 21.65 (550) 14.88 (378) 25.39 (645) approx. 403 16" 400 19.69 (500) 23.62 (600) 15.79 (401) 27.20

• − ２４ − ６Ｆ８Ａ０９２６ (2) Grounding of the LF654 type Ground the external grounding terminal of the detector and the FG terminal of the converter (or external grounding terminal of the converter) securely (grounding resistance 100Ω or lower). Use grounding wire material of IV wire 5.5mm 2 or more. Do not share a grounding wire with other instruments where gr

• Toshiba LF654, − ３ − ６Ｆ８Ａ０９２６ SAFETY PRECAUTIONS Safety Precautions for Installation and Wiring WARNING  Do not disconnect while circuit is live unless location is known to be nonhazardous. DON’T Live part of electric circuit or a high temperature department can cause explosion.  Do not modify or disassemble the enclosure. DON’T Strength degradation and defects of enclosure can cause explosion.  Do not use parts of other products. DON’T Protective performance degradation for hazardous location can cause explosion.  Do not touch live circuits until assembly of all components

• Toshiba LF654, − ３１ − ６Ｆ８Ａ０９２６ 6. Operation Preparatory check Follow the procedure described below to prepare before starting the flow measurement (described with regard to the entire flowmeter). Check the items listed below  Check the wiring between the converter and related instruments.  Make sure all the bolts of connection flanges on which the flowmeter is mounted securely tightened.  Make sure the direction of flow arrow is in accordance with actual flow.  Make sure the flowmeter is grounded with 100 ohm or less ground resistance.  Make sure the housing covers a

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