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Endress+Hauser LT5 Operating Instruction

Endress+Hauser LT5 Operating Instruction

Float level gauge
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BA01264G/08/EN/04.18
71417593
2018-10-01
Products
Operating Instruction
LT5
Float Level Gauge
９０
4
８０
７０
６０
3
Solutions
0
１０
1
２０
３０
４０
５０
2
Services

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Summary of Contents for Endress+Hauser LT5

  • Page 1 BA01264G/08/EN/04.18 Products Solutions Services 71417593 2018-10-01 Operating Instruction Float Level Gauge ９０ １０ ８０ ２０ ３０ ７０ ６０ ４０ ５０...

  • Page 2: Table Of Contents

    Installation, commissioning, and operation ..3 Hoist unit (LT5-1) ......64 Operational safety .

  • Page 3: Safety Instructions

    Safety instructions Designated use The Float Tank Gauge LT5-1 perform an important role in all areas of industry. Many years of opera- tion in wide variety of applications have proven their reliability. No electrical power is required to per- form the measurement. In addition, LT series can be installed easily in your site and can measure the liquid level accurately, and can be used for the detector of the remote command.

  • Page 4: Notes On Safety Conventions And Symbols

    Float level gauge LT5 1 Safety instructions Notes on safety conventions and symbols To highlight safety-relevant or alternative operating procedures in this manual, the following conven- tions have been used, each indicated by a corresponding symbol on the left. Symbol...

  • Page 5: Identification

    Detailed ordering information is available from the following sources: • In the Product Configurator on the Endress+Hauser website: www.endress.com -> Click "Corporate" -> Select your country -> Click "Products" -> Select the product using the filters and search field ->...

  • Page 6: Scope Of Delivery

    Float level gauge LT5 2 Identification 2 Identification Scope of delivery It is extremely important to follow the instructions concerning the unpacking, transportation and stor- age of measuring instruments provided in the chapter "3.1 Incoming Acceptance, Transportation, Stor- age". Delivered Items vary depending on the product specifications (refer to "3.9 General View of Stan- dard Drawings and Order Codes").

  • Page 7: Installation

    Float level gauge LT5 3 Installation Installation Incoming acceptance, transport, storage 3.1.1 Incoming acceptance Check the packing and contents for any signs of damage. Check the shipment, and make sure that nothing is missing and that the items match your order.

  • Page 8: Installation Location

    Float level gauge LT5 3 Installation Installation location Be sure to perform the following operation prior to installation of LT. • LT series should be installed in a place where meter can be easily read. • The float must be installed so it is positioned near the tank sidewall.

  • Page 9: Installation Tool

    Float level gauge LT5 3 Installation Installation tool When installing LT5, prepare the following tools. LT5-1 LT5-1 Tool Usage of tool LT5-4 LT5-6 (Low/Threaded type (Low/Threaded type) 13 mm (0.51 in): Sheave elbow cover removal ● ● ● 24 mm (0.94 in): Sheave elbow cover removal ●...

  • Page 10: Welding For Gauge Supporter

    When welding the gauge supporter, refer to the diagram below. Pipe supporter is supplied by th cus- tomer. Distance between outer tank wall and gauge head (LT5-6 for high pressure) is 15 mm greater than for that of LT5-1 (for low pressure) and LT5-4 (for medium pressure).

  • Page 11: Guide Pipe

    Float level gauge LT5 3 Installation Guide pipe 3.5.1 Guide pipe material and installation Most LT installations will require the use of guide pipes, excluding tank top or underground applica- tions. Pipe supporters are generally used in three sections as follows.
  • Page 12 • Be sure connection between the guide pipe and the union is secure so that rain water does not enter LT5 from the union connection. • Be sure that threaded connections are properly threaded to avoid a distorted or bent connection, and be sure that welded connections are straight with no burrs left on the inside.

  • Page 13: Top Anchor, Hook And Base Plate Setup Location

    Float level gauge LT5 3 Installation Top anchor, hook and base plate setup location When attaching the anchor hook, take the anchor hook down so that it is positioned vertically against the top anchor using a plumb. The flange will be a socket type depending on specifications.

  • Page 14: Installation Condition

    Float level gauge LT5 3 Installation Installation condition 3.7.1 Dimensions of LT5-1 (Threaded type/low pressure) 320 (12.6) (6.02) Ø400 (15.74) Ø410 (16.14) Ø140 (5.51) 440 (17.32) 4-M10 Ø140 Ø400 (15.74) (5.51) Figure 11: Dimensions of LT5-1, Gauge head (ADC12) float, Unit: mm (in) Float Ø140 (SUS316)
  • Page 15 Flange (select from JIS 10K 40A FF, ASME NPS1-1/2" Cl.150 FF, or JPI 40A 150 lbs FF) 75 mm (2.95 in) of seal pot shows the dimension of SUS316 spec. 3.7.2 Dimension of LT5-1 (Flange type/low pressure) 320 (12.6) (6.02) Ø400 (15.74)
  • Page 16 Float level gauge LT5 3 Installation (0.43) 49 (1.93) 32 (1.26) 90 (3.54) Figure 15: Accessory, Unit mm (in) Gauge supporter Socket (ADC6) Top anchor (SUS316) Top anchor (PVC) Flange (select from JIS 10K 40A RF, ASME NPS 1-1/2" Cl.150 RF, or JPI 40A 150lbs RF) Flange (select from JIS 10K 40A FF, ASME NPS 1-1/2"...
  • Page 17 Float level gauge LT5 3 Installation 3.7.3 Dimension of LT5-4 (Flange type/medium pressure) Ø116 (4.57) 320 (12.6) (8.07) 141 (5.55) 4-M10 Ø20 (0.79) 135 (5.31) Ø400 (15.74) Ø410 (16.14) 440 (17.32) (0.43) Ø13 (0.51) 4.5/4 32 (1.26) (0.18/0.16)) 90 (3.54) 40 (1.57)
  • Page 18 Float level gauge LT5 3 Installation 3.7.4 Dimension of LT5-6 (Flange type/high pressure) (9.29) 350 (13.78) Ø116 (4.57) 141 (5.55) 4-M16 130 (5.12) Ø20 (0.79) Ø400 (15.74) Ø410 (16.14) 440 (17.32) (1.97) 90 (3.54) (0.35) Ø13 (0.51) 4.5/4 (0.18/0.16) 40 (1.57) 32 (1.26)

  • Page 19: Length Of Measuring Tape And Wire

    060 for each option of specification 070. However, note that the maximum length that can be displayed on the display of the LT5 gauge head simply corresponds to the measurement range. See the following tables and select the appropriate length accordingly.
  • Page 20 Float level gauge LT5 3 Installation Measuring tape SUS316 + wire SUS316, FRT 060 Measuring Total length Perforated tape Not perforated Wire Spare part range tape+wire (measuring length) tape 2.5 m 16 m 6.7 m 0.3 m 017860-0005 16 m 6.7 m...

  • Page 21: Sealing Materials For Wetting Liquid And Gas Part

    Float level gauge LT5 3 Installation Sealing materials for wetting liquid and gas part Material of packing/ Product Unit Part name Name of sealing part O-ring Rear Cover Rear Packing V#6502 Check Shaft O-ring Gauge Head Sprocket Shaft Oil Seal...

  • Page 22: 3.10 Material Certificates

    Float level gauge LT5 3 Installation 3.10 Material certificates When material certificates are required, please order them when ordering the products. Certificates can be provided for the following parts. • High-pressure specification iron gauge head (the certificate for the flange is same as the gauge head...

  • Page 23: 3.11 Reference View And Order Code For Installation

    Float level gauge LT5 3 Installation 3.11 Reference view and order code for installation 3.11.1 Cone roof tank (CRT) (8.66) (8.66) 250 (9.84) Ø400 (15.74) (17.32) Figure 20: Cone roof tank (CRT), Unit mm (in) Anchor hook Top anchor Measuring tape...
  • Page 24 Float level gauge LT5 3 Installation Order code (LT5-111A031B11A111200000+PA) Feat. Feature text Option Option text Qty. 0...0.1961bar/0.01961MPa/2.84psi, 020 Gauge head Alu (ADC12), Low pressure 030 Gauge head connection Rc 1-1/2, union nut, SUS316, thread JIS B0203 040 Display; cover Dial display; Acrylic...
  • Page 25 Float level gauge LT5 3 Installation 3.11.2 Tank top for underground tank (17.32) Figure 21: Underground tank, Unit mm (in) Anchor hook Top anchor Measuring tape float Guide wire Wetting part (wetting to the tank) Anchor hook Guide wire Bolt...
  • Page 26 Float level gauge LT5 3 Installation Order code (LT5-111C022B11A100000000) Feat. Feature text Option Option text Qty. 0...0.1961bar/0.01961MPa/2.84psi, 020 Gauge head Alu (ADC12), Low pressure 030 Gauge head connection Rc 1-1/2, union nut, SUS316, thread JIS B0203 040 Display; cover Dial display upside down; Glass + Iron...
  • Page 27 Float level gauge LT5 3 Installation 3.11.3 Cone roof tank with seal pot 950 (37.4) (8.66) (8.66) 250 (9.84) Ø400 (15.74) (17.32) Figure 22: Cone roof tank with seal pot Anchor hook Top anchor Measuring tape float Guide wire Wetting part (wetting to the tank)
  • Page 28 Float level gauge LT5 3 Installation Order code (LT5-11AA023B1BA21A1000F0+PA) Feat. Feature text Option Option text Qty. 0...0.1961bar/0.01961MPa/2.84psi, 020 Gauge head Alu (ADC12), Low pressure 030 Gauge head connection 10K 40A RF, Alu (AC4A), flange JIS B2220 040 Display; cover Dial display; Acrylic...
  • Page 29 Float level gauge LT5 3 Installation 3.11.4 Cone roof tank with seal pot PVC 950 (37.4) (8.66) (8.66) 250 (9.84) Ø400 (15.74) (17.32) (1.57) (0.28) Ø6 (0.24) Figure 23: Cone roof tank with seal pot PVC Tip of the float...
  • Page 30 Float level gauge LT5 3 Installation Order code (LT5-11AA025H1NC41A1000N0+PA) Feat. Feature text Option Option text Qty. 0...0.1961bar/0.01961MPa/2.84psi, 020 Gauge head Alu (ADC12), Low pressure 030 Gauge head connection 10K 40A RF, Alu (AC4A), flange JIS B2220 040 Display; cover Dial display; Acrylic...
  • Page 31 Float level gauge LT5 3 Installation 3.11.5 Compact cone roof tank for guide pipe 950 (37.4) Ø140 (5.51) Figure 24: Compact cone roof tank for guide pipe Vent hole Measuring tape Guide pipe (stilling well) Float 90° sheaves elbow Gauge supporter...
  • Page 32 Float level gauge LT5 3 Installation Order code (LT5-111A021L000011200000+PA) Feat. Feature text Option Option text Qty. 0...0.1961bar/0.01961MPa/2.84psi, 020 Gauge head Alu (ADC12), Low pressure 030 Gauge head connection Rc 1-1/2, union nut, SUS316, thread JIS B0203 040 Display; cover Dial display; Acrylic...
  • Page 33 Float level gauge LT5 3 Installation 3.11.6 Mounting LT at tank top using guide pipe Ø140 (5.51) Figure 25: Mounting LT at tank top Gauge head Gauge supporter Vent hole Measuring wire Guide pipe (stilling well) Float Endress+Hauser...
  • Page 34 Float level gauge LT5 3 Installation Order code (LT5-111C022L000000000000+PA) Feat. Feature text Option Option text Qty. 0...0.1961bar/0.01961MPa/2.84psi, 020 Gauge head Alu (ADC12), Low pressure 030 Gauge head connection Rc 1-1/2, union nut, SUS316, thread JIS B0203 040 Display; cover Dial display upside down; Acrylic...
  • Page 35 Float level gauge LT5 3 Installation 3.11.7 Gas holder Ø6 (0.24) (0.2) (9.84) Figure 26: Gas holder Gas holder wire hook Metal triangle fittings for measuring wire Wire guide socket 90° sheaves elbow Measuring wire Gauge supporter Gauge head Endress+Hauser...
  • Page 36 Float level gauge LT5 3 Installation Order code (LT5-111A0340000011200000+PAPFPH) Feat. Feature text Option Option text Qty. 0...0.1961bar/0.01961MPa/2.84psi, 020 Gauge head Alu (ADC12), Low pressure 030 Gauge head connection Rc 1-1/2, union nut, SUS316, thread JIS B0203 040 Display; cover Dial display; Acrylic...
  • Page 37 Float level gauge LT5 3 Installation 3.11.8 Floating roof tank (FRT) Ø70 PCD.44 (2.76) (9.84) Ø10 (0.39) <700 (27.56) Ø400 (15.74) (17.32) >520 (20.47) Figure 27: Floating roof tank Wire guide metal Upper part of float Metal triangle fittings for measuring wire...
  • Page 38 Float level gauge LT5 3 Installation Order code (LT5-111A054E000011200000+PAPEPF) Feat. Feature text Option Option text Qty. 0...0.1961bar/0.01961MPa/2.84psi, 020 Gauge head Alu (ADC12), Low pressure 030 Gauge head connection Rc 1-1/2, union nut, SUS316, thread JIS B0203 040 Display; cover Dial display; Acrylic...
  • Page 39 Float level gauge LT5 3 Installation 3.11.9 Doom roof tank for medium pressure (8.66) (8.66) (9.84) Ø400 (15.74) (17.32) Figure 28: Dome roof tank for medium pressure Anchor hook Top anchor Measuring tape float Guide wire Wetting part (wetting to the tank)
  • Page 40 Float level gauge LT5 3 Installation Order code (LT5-44AB151R4AA24A200001+PA) Feat. Feature text Option Option text Qty. 0...0.9807bar/0.09807MPa/14.22psi, 020 Gauge head Alu (AC4CT6), medium pressure 030 Gauge head connection 10K 40A RF, alu (AC4CT6), flange JIS B2220 040 Display; cover Dial display; Glass + Iron...
  • Page 41 Float level gauge LT5 3 Installation 3.11.10 Spherical tank for high pressure (8.66) (8.66) Ø400 (15.74) (17.32) Figure 29: Spherical tank for high pressure Anchor hook Top anchor float Guide wire Measuring tape Wetting part (wetting to the tank) Anchor hook...
  • Page 42 Float level gauge LT5 3 Installation Order code (LT5-66GB153R6GA26G16G204+PC) Feat. Feature text Option Option text Qty. 020 Gauge head 0...24.5bar/2.45MPa/355.25psi, Iron, high pressure 030 Gauge head connection 20K 40A RF, Iron, flange JIS B2220 040 Display; cover Dial display; Glass + Iron...

  • Page 43: 3.12 Guide Wire Installation

    Float level gauge LT5 3 Installation 3.12 Guide wire installation Installation procedure CAUTION • Be careful not to bend the guide wire. • Two guide wires should be arranged in parallel to one other and perpendicular to the tank floor.
  • Page 44 Float level gauge LT5 3 Installation Extend guide wire to the top of the tank and secure it to the top anchor. Bend end of the guide wire against the main shaft and cut it off leaving approx.100mm. Tighten the end nuts [1] and [2].

  • Page 45: 3.13 Measuring Tape And Wire Installation

    Float level gauge LT5 3 Installation 3.13 Measuring tape and wire installation CAUTION • Do not bend or damage the measuring tape. • Be sure to keep the measuring tape from twisting inside of the tank or pipe. • There are small holes at intervals of 20 mm (for feet: 1 inch) along half of the entire length of mea- suring tape.
  • Page 46 Float level gauge LT5 3 Installation 3.13.1 Measuring tape installation at cone roof tank Installation procedure Insert the non-perforated side of the measuring tape directly into the tank from the 90 sheave ° elbow. Insert the other end of the measuring tape (perforated and looped) through the 90 sheave elbow °...
  • Page 47 Float level gauge LT5 3 Installation 3.13.2 Connection procedure of measuring tape to float Bend the measuring tape at the length of 65mm. Bend the measuring tape once again at the location shown above. Bend the measuring tape twice at the center.
  • Page 48 Float level gauge LT5 3 Installation 3.13.3 Measuring tape installation at floating roof tank Installation procedure Insert the end of the measuring wire into the tank through the 90° sheave elbow. Attach the other end of the measuring tape to the tank.
  • Page 49 Float level gauge LT5 3 Installation 3.13.4 Installation of measuring tape at medium/high pressure tank CAUTION • Do not bend or damage the measuring tape. • Be sure to keep the measuring tape from twisting inside of the tank or pipe.
  • Page 50 Float level gauge LT5 3 Installation Figure 38: LT parts configuration Measuring tape Sprocket Tape drum Set screw for tape Lock screw Tape guide Dust cover Figure 39: Measuring tape installation Guide wire Measuring tape Cut the measuring tape off leaving approximately 1500 mm (59.1 in) from the connection of the float after connecting measuring tape to the tank.
  • Page 51 Float level gauge LT5 3 Installation 3.13.5 Internal parts adjustment Tape guide adjustment procedure Turn the LT tape drum in the direction indicated by arrow to put tension on the measuring tape. Figure 40: Tape drum Measuring tape Sprocket Tape drum...
  • Page 52 Roll the tape around a large conster drum the exact number of times required based on the calculation. Replace rear cover. Close the gland of LT5-4 or LT5-6 rear cover. This completes the setting procedure. Figure 42: Conster drum setting...

  • Page 53: 3.14 Liquid Sealant For Seal Pot

    Float level gauge LT5 3 Installation 3.14 Liquid sealant for seal pot 3.14.1 Filling seal pot with liquid sealant when installing new LT Liquid sealant filling procedure Install entire LT unit including the seal pot and float into the tank.
  • Page 54 Float level gauge LT5 3 Installation After administering liquid sealant and checking LT operation, the liquid sealant may CAUTION leak into the tank through the measuring tape. Figure 44: Filling seal pot with liquid sealant Liquid sealant indicator To LT5 To inside the tank 90°...
  • Page 55 Float level gauge LT5 3 Installation 3.14.2 Filing seal pot with liquid sealant for installed LT Liquid sealant filling procedure WARNING • Do not allow used liquid sealant to contact hands or skin. If used liquid sealant mingles with liquid from the tank, it may be come a hazardous substance.

  • Page 56: Display

    Float level gauge LT5 4 Display Display Dial display Pointer setting and scale reading procedure When calibrating (pointer setting) to authorized value as calculated value or measured value, calibrat- ing procedure will depend on which display type is used. Use the dial type display when tank height is 20 m or less, and use the counter type display when tank height is 20 m or more.

  • Page 57: Counter Display

    Float level gauge LT5 4 Display Counter display Counter display procedure Remove the indicator cover. Loosen the screw at the center of the scale plate. • The scale plate can rotate freely (1 scale notch is equivalent to 1 mm.).

  • Page 58: Indication Adjustment

    Float level gauge LT5 4 Display Indication adjustment Following are the three universal procedures for indicator adjustment, however the operation of the indication can be performed by using all the same procedures. • Fill the tank with actual liquid and calibrate the indicator to measured volume.
  • Page 59 L is a negative integer, subtract that value from the determined indicator value. This will be the final indicator value. Calculation of 5000 g/Ø400 mm float for LT5-1 The following values show one of the typical example. Change a value which substitutes to the formula depending on the specification required.
  • Page 60 Float level gauge LT5 4 Display Calculation of 2100g/Ø140 mm float for LT5-1 The following values show one of the typical example. Change a value which substitutes to the formula depending on the specification required. Draft of the float when tank is empty W - T = 73.02 mm...
  • Page 61 Density of actual liquid ρ 1 g/cm (actual liquid) Ø400 (15.74) Ø400 (15.74) Figure 53: Graph of Ø400 float: Liquid density (g/cm ) for LT5-4 and LT5-6, Unit: mm (in) Draft on the density ρ Water (draft on the density 1.0 g/cm Endress+Hauser...
  • Page 62 Float level gauge LT5 4 Display 4.3.4 LT startup and handling precautions for water and airtight- ness test If misshapes occur, such as the damage to measuring tape while inside spherical tanks (i.e. tanks for liquefied gas), tank operation and recovery costs can be extensive. It has been our experience, that most issues involving measuring tape failures arise during test operation or in initial operation of the tank.

  • Page 63: Operation

    Float level gauge LT5 5 Operation Operation Check handle This is used in order to check that a gauge operates properly. CAUTION • Checking gauge performance using the check handle, only after filling the tank with liquid. • The check handle is not a float hoisting handle. Do not forcibly hoist the float using the check han- dle.

  • Page 64: Hoist Unit (Lt5-1)

    A. Remove the handle when lowering operation is complete. This completes the lowering procedure. 210 (8.28) 50 (1.97) 10 (0.39) Figure 55: Hoist unit for LT5-1 Win bolt Stopper Win bolt 2 Knob Handle...

  • Page 65: Hoist Unit (Lt5-4/Lt5-6)

    While the float in service, loop lock chain 1 to 2 times around crank handle and place chain hock on the loop nearest the screw (refer to A). This completes the hoist and lowering of float procedure. Figure 56: Hoist handle (LT5-4/LT5-6) During measurement While hoisting up and down...

  • Page 66: Parts Replacement

    6 Parts replacement Parts replacement Repl acement of O-ring for transmitter (LT5-4/LT5-6) If gas begins leaking from the side of LT body, O-rings must be replaced. The following steps must be performed carefully due to the tank being under pressure from within.

  • Page 67: Drive Check Replacement (Lt5-4/Lt5-6)

    Float level gauge LT5 6 Parts replacement Drive check replacement (LT5-4/LT5-6) The drive check system is essential to confirming LT operation and employed frequently, causing inev- itable wear and tear, but is designed to be easily repaired and serviced. Replacement procedure Remove LT rear cover and tape drum.
  • Page 68 Float level gauge LT5 6 Parts replacement Figure 59: Drive check unit Gland clamp Seal metal Endress+Hauser...

  • Page 69: Maintenance

    Float level gauge LT5 7 Maintenance Maintenance Precaution prior to maintenance WARNING • Use due vigilance when working with flammable liquid tanks. Allow flammable liquids plenty of time to diffuse before pumping or transferring to tank (refer to the table below).

  • Page 70: Daily Inspection

    Float level gauge LT5 7 Maintenance Daily inspection LT does not require any inspections after it has been properly installed in a tank. Periodical inspection Follow the table below to perform the periodical inspection. Product/Part Check item Check procedure • After opening the gauge head rear cover, check accumulation of rust.

  • Page 71: Troubleshooting

    Float level gauge LT5 8 Troubleshooting Troubleshooting Failure causes and countermeasures Product/Part Check item Check procedure • Breakage of measuring tape • Open the tank and replace the measuring tape. • Guide wire caught • After opening the tank, re-stretch the guide wire.

  • Page 72: Repair

    Repair General information on repairs The Endress+Hauser repair concept assumes that the devices have a modular design and that repairs can be done by the Endress+Hauser service or specially trained customers. Spare parts are contained in suitable kits. They contain the related replacement instructions.

  • Page 73: Return

    The measuring device must be returned if repairs or a factory calibration are required, or if the wrong measuring device has been ordered or delivered. According to legal regulations, Endress+Hauser, as an ISO-certified company, is required to follow certain procedures when handling returned products that are in contact with medium.

  • Page 74: Technical Data

    Float level gauge LT5 10 Technical data Technical data Item Product root Measuring range/Specification Measuring range 0 - 2.5, 5, 10, 16, 20, 30m 0 to 60ft, 100ft ±2mm Ø400 mm float (Under the condition of; specific Density: 1g/cm ,measuring range; 10m) Accuracy ±30mm...
  • Page 75 Pressure bulkhead magnet coupling (Gauge head and display) LT5-6 (Flange/high pressure) Pressure bulkhead magnet coupling Item Product Weight LT5-1 (Threaded/flange low pressure) Approximately 15 kg Total weight LT5-4 (Flange/medium pressure) Approximately 22 kg LT5-6 (Flange/high pressure) Approximately 100 kg Item...

  • Page 76: Materials Defined By Standards

    Float level gauge LT5 11 Materials defined by standards Materials defined by standards Aluminum Symbols Descriptions ADC12 Aluminum Alloy Die Casting (SI-Si-Cu) AC4CT6 Aluminum Alloy Casting (Si7Mg) AC4A Aluminum Alloy Casting (Si10Mg) Stainless steel Symbols Descriptions SUS304 Stainless Steel (18Cr-8Ni) SUS316 Stainless Steel (18Cr-12Ni-2.5Mo)
  • Page 77 Float level gauge LT5 Endress+Hauser...
  • Page 78 www.addresses.endress.com...

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