Toshiba LF620F Instruction Manual Download Page 31 | Manualshive

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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 incorrect measurement.

After connecting a cable, try to pull it to see whether

it has been connected securely.

Figure 5.5 Connecting a Cable to Terminal Block

(2) Attach the terminal box cover . To keep the seal, tighten securely the cover.

Phillips screwdriver

Terminal block

* The appropriate torque for tightening

the terminal board screw is 1.2 N.m.

Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]

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Summary of Contents for LF620F

Page 1: ...y ways that are not described in this instruction manual After reading this manual store it with care in a place where it can be referred to whenever needed Please be sure that this manual is delivered to the personnel who will use this product ELECTROMAGNETIC FLOWMETER DETECTOR MODEL LF654 INSTRUCTION MANUAL Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...

Page 2: ...in combination with various types of electromagnetic flowmeter converters For the notes on usage connecting wiring installation configuration and maintenance of the combined converter check the model number of the combined converter and read the instruction manual of the relevant converter About Safety Precautions Read the Safety Precautions described at the front carefully and understand the cont...

Page 3: ...ates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor to moderate injuries or in property damage Safety symbols The following symbols are used in safety signs and labels affixed to a product and or in the manual for giving safety instructions Indicates an actio...

Page 4: ...her products DON T Protective performance degradation for hazardous location can cause explosion Do not touch live circuits until 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 Electrical code for Canada CEC CAN CSA C22 1 and the drawing ...

Page 5: ...Turn off mains power before working on pipes Ground the LF654 LF620F and LF654 independently from power equipment 100 ohm or less ground resistance DO Working on pipes while power is applied can cause electric shock DO Operating this product without grounding can cause electric shock or malfunction Do not conduct wiring work with bare hands Use crimped terminal lugs for the terminal board and GND ...

Page 6: ...shown left is placed near the terminal board for power input of the converter A black border and symbol on yellow triangle Be alert to electric shock Usage limitation This product is not manufactured for applying to a system requiring safety directly involved human life as follows Please contact your nearest Toshiba reprehensive if there is a possibility of using this product for such use Main con...

Page 7: ...ment Light reflecting object near the control panel or reflecting object such as metal plate placed opposing to the control panel When any of above factors is considered take a measure for the proper operation of infrared switch such as to place a cover or to secure a space for at least a person to stand in front of the control panel When unable to avoid above factors operate the EMF converter rem...

Page 8: ...ivers or cellular phones may cause interference to the flowmeter if they are used near the installation site Observe the following precautions when using them Close a transmitter cover before using a transceiver Do not use a transceiver whose output power is more than 5W Move the antenna of a transceiver or a cellular phone at least 50 cm away from the flowmeter and signal cables when using it Do ...

Page 9: ...g Connections 21 4 4 Grounding 24 5 Wiring 26 5 1 Cables 27 5 2 External Device Connections and Grounding 28 5 3 Notes on Wiring 28 5 4 Wiring 29 6 Operation 32 7 Maintenance and Troubleshooting 33 7 1 Maintenance 34 7 2 Troubleshooting 35 8 Principle of Operation 38 9 Specifications 39 9 1 Flowmeter Specifications 39 9 2 Type Specification Code 43 10 Outline Dimensions 45 Appendix 1 A system bloc...

Page 10: ...nnot find the items listed above or any problem exists contact your nearest Toshiba representative 1 2 Strage To store the electromagnetic flowmeter after opening the package select a storing place as follows and keep it under the conditions described below CAUTION 1 Avoid places where there is direct sunlight rain or wind 2 Store the product in a well ventilated place Avoid places of extremely hi...

Page 11: ...meter is used as an easy to read indicator In addition to this feature it has the following outstanding features 1 Wide flow velocity range setting such as a flow velocity range of 0 0 3 ft s to 0 39 4 ft s 0 0 1 m s to 0 12 m s is achieved 2 The unique Noise Sentry filter circuit enables you to obtain stable output automatically 3 Full graphic LCD that enables display of a large amount of informa...

Page 12: ...anual IMPORTANT The apparatus should not be provided with the cable connections Please prepare yourself for the cable connections which could be used in Division2 hazardous locations Figure 3 1 1 Appearance of LF654 LF620F Lifting Lugs Provided for 8 inch and above 200mm to 450mm for Power cable 1 2 14 NPT for DI DO cable 1 2 14 NPT Converter LF620F Grounding ring Phone 800 894 0412 Fax 888 723 47...

Page 13: ...2 14 NPT Flowdirectionarrow Terminal Box Cover Flange Terminal Box Groundterminal fordetector Lifting Lugs Provided for 8 inch and above 200mm to 450mm LF622F Grounding ring Figure 3 1 2 Appearance of LF654 Detector Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...

Page 14: ...k 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 wiring to this terminal LF622F LF620F Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...

Page 15: ...round the LF654 LF620F and LF654 independently from power equipment 100 ohm or less ground resistance Use an appropriate device to carry and install the LF654 LF620F and LF654 DO Operating this product without grounding can cause electric shock or malfunction DO If his product falls to the ground injury or malfunction of or damage to the product can be caused Install a switch and fuse to isolate t...

Page 16: ...he detector has no adjustable piping mechanism Install an adjustable short pipe where needed 9 Chemical injections should be conducted on the downstream side of the flowmeter 10 The maximum length of the cable that connects the detector and converter is 300m Select the converter installation location so that the distance between the detector and converter dose not exceed 300m 4 2 Mounting Procedur...

Page 17: ...he 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 Pipe support fittings Pipe support fittings Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...

Page 18: ...uts on both ends of the 4 or more mounting bolts finger tight See Table 4 1 Bolt length and tightening torque 6 While centering the flowmeter with the longitudinal axis of the pipeline tighten the nuts with a wrench diagonally across in even increments See Table 4 1 Bolt length and tightening torque Note that the flowmeter detector pipe axis must be aligned with the pipeline axis on both upstream ...

Page 19: ...mm 1 1 2 4 1 2 2 36 16 to 21 50mm 2 4 5 8 2 56 37 to 46 65mm 2 1 2 4 5 8 2 95 52 to 66 80mm 3 4 5 8 2 95 55 to 69 100mm 4 8 5 8 2 95 40 to 51 125mm 5 8 3 4 3 15 68 to 85 150mm 6 8 3 4 3 15 89 to 112 200mm 8 8 3 4 3 54 119 to 149 250mm 10 12 7 8 3 86 159 to 198 300mm 12 12 7 8 3 94 183 to 229 350mm 14 12 1 4 33 203 to 254 400mm 16 16 1 4 53 232 to 289 450mm 18 16 1 1 8 4 92 322 to 402 Phone 800 894...

Page 20: ...qualified for crane work or slinging work Figure 4 5 Transportation of LF654 flowmeter detector IMPORTANT Never lift the detector by inserting a bar into its measurement pipe because this will damage the linings thus making it impossible to take stable measurements Wire or cloth belt is used 90 or less a Meter size 200mm to 450mm 8 to 18 Hanging hooks are provided b Meter size 15mm to 150mm 1 2 to...

Page 21: ...wnstream side If a butterfly valve is installed downstream of the detector do not let the valve plate protrude into the pipe of the detector 1 b Optional Mount Anywhere Installation Mount Anywhere Technology With Toshiba s unique magnetic field distribution technology the meter is highly immune to upstream flow disturbances A minimum of 1D diameter length of upstream straight pipe from the flange ...

Page 22: ...ng conditions See Figure 4 6 Figure 4 6 Detector Piping Orientation The electrodes should be positioned horizontally relative to the ground surface in any piping installation See Figure 4 7 Figure 4 7 Installation position of the detector Flow direction a Horizontal pipe installation b Vertical pipe installation c Sloping pipe installation Detector Ground surface a c b A A Electrodes Detector Cros...

Page 23: ...t pipe run Figure 4 9 or sufficient head pressure Fig 4 10 at the downstream detector outlet if there is a possibility of the detector pipe becoming emptied Figure 4 9 Detector with an upright pipe run at downstream outlet Figure 4 10 Detector with sufficient head pressure at downstream outlet Flow direction arrow Vertical pipe run Detector Detector Phone 800 894 0412 Fax 888 723 4773 Web www clrw...

Page 24: ... share a grounding wire with other instruments where grounding current may flow An independent grounding is preferable Figure 4 11 Grounding the LF654 LF620F Type Grounding terminal grounding resistance 100Ωor less If the piping material is conductive connect the grounding wires to the both ends of the piping flange If the piping material is non conductive perform grounding grounding resistance 10...

Page 25: ...onnect the grounding wires to the both ends of the piping flange If the piping material is non conductive perform grounding resistance 100Ω or less Grounding terminal Input signal cable Excitation cable Grounding terminal Converter terminal block 100 ohm or less ground resistance 100 ohm or less ground resistance Grounding terminal Input signal cable Excitation cable Converter terminal block Shiel...

Page 26: ...ctric shock Do not work on piping and wiring with wet hands Ground the LF620F independently from power equipment 100 ohm or less ground resistance DON T Wet hands may result in electric shock DO Operating this product without grounding can cause electric shock or malfunction Do not conduct wiring work with bare hands For the power supply wiring and grounding wiring use crimping terminals with insu...

Page 27: ...te signals pass each of them separately through a thick steel conduit tube keep them away from the large current wiring as far as possible and do not install them in parallel 5 1 Cables Use the kind of cables shown in Table 5 1 to wire the converter Table 5 1 Installation Cables Name Cable name Nominal cross section al area Finished outer diameter Description Power cable 3 core vinyl sheathed cabl...

Page 28: ...he detector is shipped with a flow rate signal cable and excitation cable Be sure to use those cables coming with the detector Note When the cable length exceeds 300m cables may not be supplied Check whether the cable is supplied with the specs The allowable cable length between the detector and converter varies depending on the conductivity of the operating fluid Refer to the instruction manual o...

Page 29: ...terminal is as follows Integral type M3 5 Separate type M3 5 Connect the power cable to terminal blocks L1 and L2 Connect the current output cable to terminal blocks and Connect the digital I O cable to terminal blocks D1 D01 D02 and COM as required Figure 5 1 Terminal Treatment of Power Cable Current Output Cable and Digital I O cable 2 Excitation cable Strip the sheath from the end of each condu...

Page 30: ...reatment of Flow Rate Signal Cable Notes on signal cable shield processing work When stripping an external sheath intermediate and insulated sheath be careful not to scratch or cut the internal conductors and shield mesh Do not disjoint the shield mesh but treat it as shown in Figure 5 9 Figure 5 4 Treating the Signal Cable Shield Mesh M3 5 crimping terminal Thermal contraction tube or vinyl tube ...

Page 31: ... 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 incorrect measurement After connecting a cable try to pull it to see whether it has been connected securely Figure 5 5 Connecting a Cable to Terminal Block 2 Attach the terminal box cover To keep the seal tighten securely the cover Phillips screwdriv...

Page 32: ...es to warm up the flowmeter Then making sure the fluid holds still in the detector pipe starts the zero adjustment Refer to combined converter s manual After checking the items and conducting the zero adjustment as listed above let the fluid go through the detector pipe Output 4 20 mA dc directly proportional to the flow rate can be obtained CAUTION Do not touch the terminal board when power is su...

Page 33: ...embly 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 Electrical code for Canada CEC CAN CSA C22 1 and the drawing 3S8A2676 3S8A2677 Refer to Appendix 1 and 2 DO Unsuitable conduit connections for hazardous location can cause explosion CAUTION Do n...

Page 34: ...vernment Especially if you dispose of electrolytic capacitors to replace parts have it done by an agency which is licensed to handle industry waste materials Fuse The fuse can be taken out by unscrewing the cap of the fuse holder Check that the fuse is not damaged The fuse has to be replaced periodically The recommended replacement period is 3 years Type of fuse used Glass tube fuse Medium Acting ...

Page 35: ... device Use the correct power supply for each device Are power and I O cables installed correctly Install the cables correctly Refer to Chapter 5 Wiring Is the fuse burnt Replace the fuse with a new one Is the flow range correctly set Set correctly Refer to combined converter s manual Is the flow direction match with the arrow mark on the detector Install the detector correctly Refer to Chapter 4 ...

Page 36: ...l of detector pipe contaminated Clean the inside of the detector pipe YES NO Is the output load resistance as specified Design the output circuit so that the output load resistance is less than 750 Ω NO YES Calculate as shown on the left Are there two load resistors connected to the output in parallel Connect the two load resistors in series if necessary YES NO NO YES Contact your nearest Toshiba ...

Page 37: ...s there high voltage or large current cable or equipment near the flowmeter Is the flowmeter grounded with 100Ωor less ground resistance Ground the flowmeter with a copper braid or wire 5 5 mm minimum to a good earth ground 100Ωor less ground resistance NO YES YES YES NO NO Is the detector pipe filled with fluid Design piping so that the detector pipe is filled with fluid all the time NO YES START...

Page 38: ...cable to the voltage E K B D V V Eq 14 1 Volumetric flow rate Q m3 s is Q V Eq 14 2 Using the Equation 14 1 and 14 2 E K B D Q E Q Eq 14 3 Therefore volumetric flow rate is directly proportional to the induced voltage Figure 8 1 Principle of Operation The LF654 LF620F and LF654 uses the square wave excitation method which provides long term stable operation With square wave excitation the LF654 LF...

Page 39: ...imum Fluid temperature 4 to 248 F 20 to 120 C PFA lining flowmeter 4 to 140 F 20 to 60 C Polyurethane lining flowmeter Ambient temperature 40 to 140 F 40 to 60 C PFA lined flowmeter less than 8 4 to 140 F 20 to 60 C Polyurethane lining flowmeter PFA lining flowmeter over 10 Fluid pressure 15 psi or 1 0 bar 0 1 MPa to the nominal pressure of the connection flange Connection flange standard See Tabl...

Page 40: ...hours every depth 15m and moisture doesn t infiltrate internally Cable connection port 1 2 14NPT male screw for both signal cable and exciting cable Cable length Allowable cable length between the converter and the detector varies with the electrical conductivity of fluid See Figure 9 1 Figure 9 1 Electrical Conductivity vs Cable Length 3 5 10 20 30 50 100 200 300 5 3 ケーブル許容長さ m 10 20 30 50...

Page 41: ...dard Flow Range Standard flow range Meter size inch mm Flow rate gal min Flow rate m h Flow velocity m s 1 2 15 25 2 3 144 1 25 75 6 3 395 1 1 4 32 125 10 3 454 1 1 2 40 175 15 3 316 2 50 300 25 3 537 2 1 2 65 475 40 3 348 3 80 650 60 3 316 4 100 1 000 100 3 537 5 125 1 750 150 3 395 6 150 2 500 200 3 144 8 200 4 500 300 2 653 10 250 7 000 600 3 395 12 300 10 000 900 3 537 14 350 12 000 1 200 3 46...

Page 42: ... 35 113 8 379 4 1 494 5 19 45 58 35 177 9 592 9 2 334 6 28 01 84 03 256 1 853 8 3 361 8 49 80 149 4 455 3 1 518 5 975 10 77 80 233 4 711 5 2 372 9 337 12 112 1 336 1 1 025 3 415 13 445 14 152 5 457 5 1 394 4 648 18 300 16 199 1 597 5 1 821 6 071 23 902 18 252 1 756 3 2 305 7 684 30 251 Unit m3 h Flow rate Size mm 0 1m s 0 3m s 1m s 3m s 12m s 15 0 0631 0 1908 0 6361 1 908 7 634 25 0 1767 0 5301 1 ...

Page 43: ...nding Ring Material Note 2 C 316 stainless steel z z D 316L stainless steel E Ti titanium F Ta tantalum G Pt Ir platinum iridium H Hastelloy C Equivalent Flow and calibration velocity range A 1 0 to 32 8 ft s standard range calibration z z B 1 0 to 32 8 ft s specified range calibration C 0 3 to 32 8 ft s specified range calibration Excitation and Signal Cables A not provided z z B 30m cable provid...

Page 44: ...eet 35 m cable can be ordered in 5 meters increments 40 m 45 m 50 m 60 m From 50 to 300 meters 164 to 984 feet cable can be ordered in 10 meters increments 300 m Notes 1 Exciting cable is a 3 wire chloroprene sheathed cable For a nominal cross sectional area of 1 25 mm the overall diameter will be 12 mm 15 32 inch for 2 mm 13 mm 1 2 inch 2 Signal cable is a 2 wire shielded chloroprene sheathed cab...

Page 45: ... 18 284 approx 20 2 50 7 09 180 7 87 200 9 09 231 12 09 307 approx 29 2 1 2 65 7 87 200 7 87 200 9 29 236 12 80 325 approx 38 3 80 9 06 230 7 87 200 9 69 246 13 43 341 approx 45 4 100 9 45 240 9 84 250 10 28 261 14 80 376 approx 64 5 125 9 84 250 9 84 250 10 71 272 15 71 399 approx 73 6 150 10 24 260 11 81 300 11 34 288 16 85 428 approx 93 8 200 11 81 300 13 78 350 12 24 311 19 02 483 approx 139 N...

Page 46: ... 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 20 691 approx 509 18 450 21 65 550 23 62 600 16 69 424 29 21 742 approx 617 NOTES 1 Mass is different depending on the standard The value of the table inside is ANSI 150 LF620F Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email i...

Page 47: ...88 251 approx 18 2 50 7 09 180 7 87 200 7 80 198 10 79 274 approx 27 2 1 2 65 7 87 200 7 87 200 7 99 203 11 50 292 approx 36 3 80 9 06 230 7 87 200 8 39 213 12 13 308 approx 42 4 100 9 45 240 9 84 250 8 98 228 13 50 343 approx 62 5 125 9 84 250 9 84 250 9 41 239 14 41 366 approx 71 6 150 10 24 260 11 81 300 10 04 255 15 55 395 approx 91 8 200 11 81 300 13 78 350 10 94 278 17 72 450 approx 137 NOTE...

Page 48: ... 84 504 approx 205 12 300 15 75 400 19 69 500 13 35 339 22 83 580 approx 313 14 350 17 72 450 21 65 550 13 58 345 24 09 612 approx 401 16 400 19 69 500 23 62 600 14 49 368 25 91 658 approx 507 18 450 21 65 550 23 62 600 15 39 391 27 91 709 approx 614 NOTES 1 Mass is different depending on the standard The value of the table inside is ANSI 150 LF622F Phone 800 894 0412 Fax 888 723 4773 Web www clrw...

Page 49: ... ４８６Ｆ８Ａ０９２６ Appendix 1 1 1 A system block diagram for LF654 LF620F Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...

Page 50: ... ４９６Ｆ８Ａ０９２６ 1 2 A system block diagram for LF654 Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...

Page 51: ...phone number of the distributor from which you purchased this product the product code SER NO and so on Distributor Address Name Phone number Product code LF SER NO Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...

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