Operating Instruction LT5

Transcription

1 BA264G/8/EN/ Products Solutions Services Operating Instruction LT5 Float Level Gauge

2 Table of Contents Float Tank Gauge LT5 Table of Contents Safety Instructions Designated Use Installation, Commissioning, and Operation Operational Safety Notes on Safety Conventions and Symbols Symbols for Certain Types of Information Identification Device Designation Order Information Scope of Delivery Installation Incoming Acceptance, Transport, Storage Installation Location Installation Tool Welding for Gauge Supporter Guide Pipe Top Anchor, Hook and Base Plate Set Up Location Installation Condition List of Sealing Materials for Wetting Liquid and Gas Part General View of Standard Specifications and Order Codes Guide Wire Installation Measuring Tape and Measuring Wire Installation Liquid Sealant for Seal Pot Operation Check Handle Hoist Unit (LT5-) Hoist Unit (LT5-4/LT5-6) Parts Replacement Replacement of O-ring for Transmitter (LT5-4/LT5-6) Drive Check Replacement (LT5-4/LT5-6) Maintenance Precaution prior to Maintenance Daily Inspection Periodical Inspection Troubleshooting Failure Causes and Countermeasures Spare Parts Return Disposal Technical Data Display Dial Display Counter Display Indication Adjustment Endress+Hauser

3 Float Tank Gauge LT5 Safety Instructions Safety Instructions. Designated Use The Float Tank Gauge LT5- perform an important role in all areas of industry. Many years of operation in wide variety of applications have proven their reliability. No electrical power is required to perform 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. Therefore LT series are best suited for use in the following operations. Management of Inventory Batch Process Management of Process Tank Safety Drive of Tanks.2 Installation, Commissioning, and Operation Mounting, electrical installation, start-up, and maintenance of the instrument may only be performed by trained personnel authorized by the operator of the facility. Personnel must read and understand these installation instructions before performing the procedures. The instrument may only be operated by personnel who are authorized and trained by the operator of the facility. All instructions in this manual must be observed. The installer must make sure that the measuring system is correctly wired according to the wiring diagrams. The measuring system must be grounded. Observe all law and regulations applicable and valid for your country and pertaining to the opening and repairing of electrical devices. Always be sure to wear gloves when installing any device..3 Operational Safety WARNING Changes or modifications other than those expressly approved by Endress+Hauser are strictly prohibited. Unauthorized modifications can cause malfunction or damage, resulting in serious injury or death. Endress+Hauser 3

4 Safety Instructions Float Tank Gauge LT5.4 Notes on Safety Conventions and Symbols To highlight safety-relevant or alternative operating procedures in this manual, the following conventions have been used, each indicated by a corresponding symbol on the left. Symbol DANGER A89-EN WARNING A9-EN CAUTION NOTICE A9-EN A92-EN Meaning DANGER! This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in serious or fatal injury. WARNING! This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in serious or fatal injury. CAUTION! This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in minor or medium injury. NOTICE! This symbol contains information on procedures and other facts which do not result in personal injury..5 Symbols for Certain Types of Information Symbol Meaning Allowed Indicates procedures, processes or actions that are allowed. A82 Recommendation Indicates procedures, processes or actions that are recommended. A83 Forbidden Indicates procedures, processes or actions that are forbidden. A84 A93 Tip Indicates additional information. 4 Endress+Hauser

5 Float Tank Gauge LT5 2 Identification 2 Identification 2. Device Designation 2.. Nameplate The following technical data are given on the instrument nameplate: Level gauge LT5 Order code Serial no. Ext. ord. cd. No. Descriptions Tag Number (Option) Order Code Serial Number Extended Order Code /Range Endress+Hauser Yamanashi Co.,Ltd. Date Yamanashi Made in Japan NP-27 Measuring Range Date of Manufacturer Figure : Nameplate Endress+Hauser 5

6 2 Identification Float Tank Gauge LT5 2.2 Order Information 2 Gauge Head:...96bar/.96MPa/2.84psi, Alu (ADC2), low pressure bar/.987MPa/4.22psi, Alu (AC4CT6), medium pressure bar/2.45MPa/355.25psi, Iron, high pressure 9 Special version, TSP-no. to be spec. 3 Gauge Head Connection: A K 4A RF, Alu (AC4A), flange JIS B222 B K 4A RF, SUS36, flange JIS B222 C NPS -/2" Cl.5 RF, Alu (AC4A) flange ASME B6.5 D NPS -/2" Cl.5 RF, SUS36 flange ASME B6.5 E 4A 5lbs RF, Alu (AC4A), flange JPI 7S-5 F 4A 5lbs RF, SUS36, flange JPI 7S-5 R K 5A RF, SUS36, flange JIS B222 T NPS 6" Cl.5 RF, SUS36 flange ASME B6.5 U 5A 5lbs RF, SUS36, flange JPI 7S-5 Rp -/2, w/o union nut, thread JIS B23 Rc -/2, union nut, SUS36, thread JIS B23 2 NPT -/2, union nut, SUS36, thread ANSI 4A K 4A RF, alu (AC4CT6), flange JIS B222 4C NPS -/2" Cl.5 RF, Alu (AC4CT6) flange ASME B6.5 4E 4A 5lbs RF, Alu (AC4CT6), flange JPI 7S-5 6A K 4A RF, Iron, flange JIS B222 6C NPS -/2" Cl.5 RF, iron flange ASME B6.5 6E 4A 5lbs RF, Iron, flange JPI 7S-5 6G 2K 4A RF, Iron, flange JIS B222 6J NPS -/2" Cl.3 RF, iron flange ASME B6.5 6L 4A 3lbs RF, Iron, flange JPI 7S-5 99 Special version, TSP-no. to be spec. 4 Display; Cover: A Dial display; Acrylic B Dial display; Glass + Iron C Dial display upside down; Acrylic D Dial display upside down; Glass + Iron E Mechanical counter; Iron Y Special version, TSP-no. to be spec. 5 Crank Unit: Not selected Selected 9 Special version, TSP-no. to be spec. 6 Measuring Range F 6ft H ft 2.5m 2 5m 3 m 4 6m 5 2m 6 3m 9 Special version, TSP-no. to be spec. 7 Measuring Tape: Not selected Measuring tape, CRT 2 Measuring tape, tank top installation 3 Measuring tape, seal pot/bt 4 Measuring tape + wire, FRT 5 Measuring tape + PFA coated wire, seal pot/crt 9 Special version, TSP-no. to be spec. 6 Endress+Hauser

7 Float Tank Gauge LT5 2 Identification 8 Float A D4mm SUS36 tape connection 4.2kg, density range >=.5...<.65, rings B D4mm SUS36 tape connection 5.kg, density range >=.65...<.5, rings C D4mm SUS36 tape connection 8.kg, density range >=.5...<= 2., rings D D4mm SUS36 wire connection 4.2kg, density range >=.5...<.65, rings E D4mm SUS36 wire connection 5.kg, density range >=.65...<.5, rings F D4mm SUS36 wire connection 8.kg, density range >=.5...<= 2., rings G D4mm PVC wire connection 4.2kg, density range >=.5...<.65, rings H D4mm PVC wire connection 5.kg, density range >=.65...<.5, rings J D4mm PVC wire connection 8.kg, density range >=.5...<= 2., rings K D4mm SUS36 tape connection 2.kg, density range >=.5...<.94, no rings L D4mm SUS36 tape connection 2.4kg, density range >=.94...<= 2., no rings M D4mm SUS36 wire connection 2.kg, density range >=.5 <...<.94, no rings N D4mm SUS36 wire connection 2.4kg, density range >=.94...<= 2., no rings P D4mm PVC wire connection 2.kg, density range >=.5...<.94, no rings Q D4mm PVC wire connection 2.4kg, density range >=.94...<= 2., no rings R D4mm SUS36 tape connection 8.3kg, density range >=.5...<=.7, rings Y Special version, TSP-no. to be spec. Not selected 9 Top Anchor: Not selected A 2x K 4A RF, Alu (ADC6+AC4A),flange JIS B222 B 2x K 4A RF, SUS36, flange JIS B222 C 2x NPS -/2" Cl.5 RF, Alu (ADC6+AC4A) flange ASME B6.5 D 2x NPS -/2" Cl.5 RF, SUS36 flange ASME B6.5 E 2x 4A 5lbs RF, Alu (ADC6+AC4A), flange JPI 7S-5 F 2x 4A 5lbs RF, SUS36, flange JPI 7S-5 N 2x K 4A FF, PVC, flange JIS B222 P 2x NPS -/2" Cl.5 FF, PVC flange ASME B6.5 Q 2x 4A 5lbs FF, PVC, flange JPI 7S-5 2x R, Alu (ADC6), thread JIS B23 2 2x R, SUS36, thread JIS B23 3 2x NPT, Alu (ADC6), thread ANSI 4 2x NPT, SUS36, thread ANSI 5 2x weld-fixing, SUS36 weld-in socket 4A 2x K 4A RF, Alu (AC4CT6), flange JIS B222 4B 2x NPS -/2" Cl.5 RF, Alu (AC4CT6) flange ASME B6.5 4C 2x 4A 5lbs RF, Alu (AC4CT6), flange JPI 7S-5 6A 2x K 4A RF, Iron, flange JIS B222 6B 2x K 4A RF, SUS36, HP, flange JIS B222 6C 2x NPS -/2" Cl.5 RF, iron flange ASME B6.5 6D 2x NPS -/2" Cl.5 RF, SUS36, HP flange ASME B6.5 6E 2x 4A 5lbs RF, Iron, flange JPI 7S-5 6F 2x 4A 5lbs RF, SUS36, HP, flange JPI 7S-5 6G 2x 2K 4A RF, Iron, flange JIS B222 6H 2x 2K 4A RF, SUS36, flange JIS B222 6J 2x NPS -/2" Cl.3 RF, iron flange ASME B6.5 6K 2x NPS -/2" Cl.3 RF, SUS36 flange ASME B6.5 6L 2x 4A 3lbs RF, Iron, flange JPI 7S-5 6M 2x 4A 3lbs RF, SUS36, flange JPI 7S-5 99 Special version, TSP-no. to be spec. Guide Wire: A Diameter 3mm solid wire B Diameter 3mm strand wire C Diameter 4.6mm strand wire, PFA coated Y Special version, TSP-no. to be spec. Not selected Bottom Anchor; Fixing Bolt: Not selected Iron; SUS36 2 SUS36; SUS36 3 Iron; PVC 4 SUS36; PVC 9 Special version, TSP-no. to be spec. Endress+Hauser 7

8 2 Identification Float Tank Gauge LT5 2 9 Degree Sheave Elbow: Not selected A x K 4A RF, Alu (ADC6+AC4A), flange JIS B222 A2 2x K 4A RF, Alu (ADC6+AC4A), flange JIS B222 B x K 4A RF, SCS4+SUS36, flange JIS B222 B2 2x K 4A RF, SCS4+SUS36, flange JIS B222 C x NPS -/2" Cl.5 RF, Alu (ADC6+AC4A) flange ASME B6.5 C2 2x NPS -/2" Cl.5 RF, Alu (ADC6+AC4A) flange ASME B6.5 D x NPS -/2" Cl.5 RF, SCS4+SUS36 flange ASME B6.5 D2 2x NPS -/2" Cl.5 RF, SCS4+SUS36 flange ASME B6.5 E x 4A 5lbs RF, Alu (ADC6+AC4A), flange JPI 7S-5 E2 2x 4A 5lbs RF, Alu (ADC6+AC4A), flange JPI 7S-5 F x 4A 5lbs RF, SCS4+SUS36, flange JPI 7S-5 F2 2x 4A 5lbs RF, SCS4+SUS36, flange JPI 7S-5 x Rp-/2, Alu (ADC6), thread JIS B23 2 2x Rp-/2, Alu (ADC6), thread JIS B23 2 x Rp-/2, SCS4, thread JIS B x Rp-/2, SCS4, thread JIS B23 3 x NPT-/2, Alu (ADC6), thread ANSI 32 2x NPT-/2, Alu (ADC6), thread ANSI 4 x NPT-/2, SCS4, thread ANSI 42 2x NPT-/2, SCS4, thread ANSI 4A x K 4A RF, Alu (AC4CT6), flange JIS B222 4A2 2x K 4A RF, Alu (AC4CT6), flange JIS B222 4C x NPS -/2" Cl.5 RF, Alu (AC4CT6) flange ASME B6.5 4C2 2x NPS -/2" Cl.5 RF, Alu (AC4CT6) flange ASME B6.5 4E x 4A 5lbs RF, Alu (AC4CT6), flange JPI 7S-5 4E2 2x 4A 5lbs RF, Alu (AC4CT6), flange JPI 7S-5 6A x K 4A RF, Iron, flange JIS B222 6A2 2x K 4A RF, Iron, flange JIS B222 6C x NPS -/2" Cl.5 RF, iron flange ASME B6.5 6C2 2x NPS -/2" Cl.5 RF, iron flange ASME B6.5 6E x 4A 5lbs RF, Iron, flange JPI 7S-5 6E2 2x 4A 5lbs RF, Iron, flange JPI 7S-5 6G x 2K 4A RF, Iron, flange JIS B222 6G2 2x 2K 4A RF, Iron, flange JIS B222 6J x NPS -/2" Cl.3 RF, iron flange ASME B6.5 6J2 2x NPS -/2" Cl.3 RF, iron flange ASME B6.5 6L x 4A 3lbs RF, Iron, flange JPI 7S-5 6L2 2x 4A 3lbs RF, Iron, flange JPI 7S Special version, TSP-no. to be spec Degree Sheave Elbow: Not selected A2 2x K 4A RF, Alu (AC4A+AC4A),flange JIS B222 C2 2x NPS -/2" Cl.5 RF, Alu (AC4A+AC4A) flange ASME B6.5 2x 4A 5lbs RF, Alu (AC4A+AC4A),flange JPI 7S-5 2 2x Rp-/2, Alu (AC4A), thread JIS B x NPT-/2, Alu (AC4A), thread ANSI 4A2 2x K 4A RF, Alu (AC4CT6),flange JIS B222 4C2 2x NPS -/2" Cl.5 RF, Alu (AC4CT6) flange ASME B6.5 4E2 2x 4A 5lbs RF, Alu (AC4CT6),flange JPI 7S-5 6A2 2x K 4A RF, Iron, flange JIS B222 6C2 2x NPS -/2" Cl.5 RF, iron flange ASME B6.5 6E2 2x 4A 5lbs RF, Iron, flange JPI 7S-5 6G2 2x 2K 4A RF, Iron, flange JIS B222 6J2 2x NPS -/2" Cl.3 RF, iron flange ASME B6.5 6L2 2x 4A 3lbs RF, Iron, flange JPI 7S Special version, TSP-no. to be spec. 8 Endress+Hauser

9 Float Tank Gauge LT5 2 Identification 4 Seal Pot: A Rp-/2, Alu + Iron, thread JIS B23 B Rp-/2, SCS4 + SUS36,thread JIS B23 C NPT-/2, Alu + Iron, thread ANSI D NPT-/2, SCS4 + SUS36, thread ANSI E K 4A RF, Alu + Iron, flange JIS B222 F K 4A RF, SUS36, flange JIS B222 G NPS -/2" Cl.5 RF, Alu+iron flange ASME B6.5 H NPS -/2" Cl.5 RF, SUS36 flange ASME B6.5 J 4A 5lbs RF, Alu + Iron, flange JPI 7S-5 K 4A 5lbs RF, SUS36, flange JPI 7S-5 N K 4A FF, PVC, flange JIS B222 P NPS -/2" Cl.5 FF, PVC flange ASME B6.5 Q 4A 5lbs FF, PVC, flange JPI 7S-5 Y Special version, TSP-no. to be spec. Not selected 5 Valve: Not selected K 4A RF, SCS3, flange JIS B222 2 NPS -/2" Cl.5 RF, SCS3 flange ASME B A 5lbs RF, SCS3, flange JPI 7S-5 4 2K 4A RF, SCS3, flange JIS B222 5 NPS -/2" Cl.3 RF, SCS3 flange ASME B6.5 flange ASME B A 3lbs RF, SCS3, flange JPI 7S-5 9 Special version, TSP-no. to be spec. 57 >> Service: H Cleaned (neutral detergent) H2 Cleaned (alcohol) H3 Separate delivery, see additional spec. H9 Special version, TSP-no. to be spec. 58 >> Test, Certificate: JA J J2 J3 J4 J5 J6 J7 J8 K K2 K9 3. Material certificate, wetted metallic parts, EN24-3. inspection certificate Calibration report PT certificate Delivery specifications document As built drawing Traceability document Certificate of origin Inspection procedure document Strength calculation document Wall thickness measurement KHK approval Special version, TSP-no. to be spec. 6 >> Accessory Mounted: NA Copper-free gear NB Custody transfer seal NC Fixed tape guide ND Dust protector NE Conster drum large, Alu 9 Special version, TSP-no. to be spec. Endress+Hauser 9

10 2 Identification Float Tank Gauge LT5 62 >> Accessory Enclosed: PA Gauge supporter, Iron PB Gauge supporter, SUS34, PC Gauge supporter, Iron, high pressure PD Gauge supporter, SUS34, high pressure PE FRT Wire guide metal PF Wire guide socket, RC-/2 PG Wire guide socket, NPT-/2 PH Gas holder wire hook R9 Special version, TSP-no. to be spec. 895 >> Marking: Z Tagging (TAG), see additional spec. LT5- Complete product designation Endress+Hauser

11 Float Tank Gauge LT5 2 Identification 2.3 Scope of Delivery WARNING It is extremely important to follow the instructions concerning the unpacking, transportation and storage of measuring instruments provided in the chapter "3. Incoming Acceptance, Transportation, Storage". NOTICE Delivered Items vary depending on the product specifications (refer to "3.9 General View of Standard Drawings and Order Codes"). Accompanying documentation: Operating Instructions (this manual) 2.3. Standard Packing Layout with Carton Box The packing layout and its procedure are vary depending on the order codes. The flange type of the sheave elbow is delivered separately. Sheave Elbow Anchor Hook Gauge Supporter Guide Wire Top Anchor Sheave Elbow Float (Under Gauge Head) Measuring Tape Gauge Head Figure 2: Packing Layout Endress+Hauser

12 3 Installation Float Tank Gauge LT5 3 Installation 3. Incoming Acceptance, Transport, Storage 3.. 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 Transportation WARNING Follow the safety instructions and conditions of transportation for instruments in excess of 8kg (4 lbs.). Do not lift the measuring instrument by its head (union or flange) during unpacking Storage Pack the measuring instrument so that it is protected against impacts during storage and transportation. The original packing material provides the optimum protection for this. The allowed storage temperature is -2 to +7 C. 2 Endress+Hauser

13 Float Tank Gauge LT5 3 Installation 3.2 Installation Location Be sure to perform the following operation prior to installation of LT. WARNING 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. In a spherical tank, the float must be installed so that it is positioned in line with the center of the tank. When installing LT on tanks that have a dome roof with a steep incline, the float must be installed so it is positioned in line with the center of the tank. Use an appropriate gasket on flange connection to maintain airtightness. WARNING The float should be positioned as far from the tank inlet or stirrer as possible, so that the waves, which caused by liquid inflow, do not directly impact the float. If there is no choice but to position the float near an inlet or stirrer, install a wave guard to protect the float. If liquid flows into the tank abruptly, the float line may be severed. Recommended Installation Center of Float Wave Guard Wave Guard Tank Liquid Inlet Liquid Inlet Not Recommended Installation Liquid Inlet Liquid Inlet Figure 3: Setup Condition Endress+Hauser 3

14 3 Installation Float Tank Gauge LT5 3.3 Installation Tool When installing LT series, prepare the following tools. Recommended Tools for Installation Use on Tank Top Use at Ground Level Use at Both Places Not Use Tools Usage of Tools LT5- LT5- (Low/Threaded Type) (Low/Flange Type) LT5-4 LT5-6 Box End Wrench 9mm: Sheave elbow cover removal & installation 24mm: Sheave elbow cover removal & installation 7mm: Gauge head installation 24mm: Gauge head installation 24mm: JIS flange installation (M6, 2pcs.) 2mm: 5lbs flange installation (/2, 2pcs.) 32mm: 3lbs flange installation (3/4, 2pcs.) Open End Wrench Water Pump Plier Wire Cutter Phillips Screwdriver Box End Driver Plier Metal Scissors Pipe wrench 9mm : Tighten guide wire bolt & nut of top anchor,compressing tension spring 25mm or more : Install Top anchor (Threaded type LT) Trim guide wire for the appropriate length Measuring tape clump tool installation Counter type display adjustment 5.5mm : Measuring tape clump tool installation Dial type display adjustment 8mm : Removal & reinstall display cover Tightening measuring clump tool Trim measuring tape 6mm or more: Gauge head installation for guide pipe Figure 4: Tools to Be Prepared 4 Endress+Hauser

15 Float Tank Gauge LT5 3 Installation 3.4 Welding for Gauge Supporter Gauge supporter is used to attach to the outer wall of the tank. Distance between outer tank wall and gauge head (LT5-6 for high pressure) is 5mm greater than for that of LT5- (for low pressure) and LT5-4 (for medium pressure) Pipe Supporters Center Line of Gauge Supporter 9 Center Line of Mounting Position 32 6 R ± Gauge Supporter Bolts: M SS4 t = 4.5 SUS34 t = 4. Pipe support not included Figure 5: Gauge Supporter (Low and Medium Pressure) Pipe Supporters Center Line of Gauge Supporter 9 Center Line of Mounting Position R9 Gauge Supporter SS4 t = 4. SUS34 t = 4. Bolts: M6 25 Pipe support not included Figure 6: Gauge Supporter (High Pressure) Endress+Hauser 5

16 3 Installation Float Tank Gauge LT5 3.5 Guide Pipe 3.5. Guide Pipe Material and Installation Most LT installations will require the use of guide pipes, excluding tank top or underground applications. Pipe supporters are generally used in three sections (gauge head to elbow, elbow to elbow, and elbow to tank roof). However, Endress+Hauser does not supply a pipe supporter. These must be supplied by the customer. -/2B <±5mm <±5mm Bend: Max. 5mm Figure 7: Attachment of Guide Pipe CAUTION Galvanized carbon steel pipe is recommended for use as guide pipes. When application is for extremely corrosive gas, using stainless steel or hard PVC pipe, containing a resin inner lining is recommended. 6 Endress+Hauser

17 Float Tank Gauge LT5 3 Installation Guide Pipe Connection NOTICE Use a PTFE sealing tape or gasket to maintain airtightness against gas or rain. Be sure connection between the guide pipe and the union is secure so that rain water does not enter LT 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. Non-usable Pipe Screw Bending Burr Welding Bending by Welding Welding Burr Usable Pipe Vertical Chamfering Remove welding Burr Vertical Figure 8: Guide Pipe Connection Endress+Hauser 7

18 3 Installation Float Tank Gauge LT5 3.6 Top Anchor, Hook and Base Plate Set Up 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 one specifications. Nozzle Flange for Gauge Head Nozzle Flange for Top Anchor Tank Top Leveling Line Plumb Figure 9: Top Anchor Guide Wire (Single Wire) 44 ± /2B Socket B Socket Tank Top Guide Wire 44 Anchor Hook Figure : Attachment of Anchor Hook 8 Endress+Hauser

19 Float Tank Gauge LT5 3 Installation 3.7 Installation Condition 3.7. Dimensions of LT5- (Threaded Type Low Pressure Type) Gauge Head Gauge Supporter Seal Pot Top Anchor ADC6 Top Anchor SUS36 Socket Welding Top Anchor (PVC) R or NPT Tank Roof ( ) shows SUS36 dimension. Anchor Hook Anchor Hook (PVC Bolt) 9 Sheave Elbow Seal Pot (PVC) ( ) shows SUS36 dimension. Float (Ø4) Float (Ø4) Figure : Dimensions of LT5- Endress+Hauser 9

20 3 Installation Float Tank Gauge LT LT5- (Low Pressure Flange Type) Gauge Head Gauge Supporter Seal Pot Top Anchor ADC6 Top Anchor SUS36 Top Anchor (PVC) 9 Sheave Elbow -/2 Flange Anchor Hook Seal Pot (PVC) ( ) shows SUS36 dimension. -/2 Flange Anchor Hook (PVC) Float (Ø4) Figure 2: Dimensions of LT5-2 Endress+Hauser

21 Float Tank Gauge LT5 3 Installation LT5-4 (Medium Pressure Flange Type) Gauge Head -/2 Flange Plug Gate Valve Top Anchor Anchor Hook (4) ( ) shows SUS36 dimension. -/2 Flange -/2 Flange Float 35 Sheave Elbow 9 Sheave Elbow -/2 Flange Figure 3: Dimensions of LT LT5-6 (High Pressure Flange Type) Gauge Head -/2 Flange Plug Gate Valve Top Anchor Anchor Hook 4.5 (4) ( ) shows SUS36 dimension. -/2 Flange -/2 Flange Float 35 Sheave Elbow 9 Sheave Elbow -/2 Flange Figure 4: Dimensions of LT5-6 Endress+Hauser 2

22 3 Installation Float Tank Gauge LT5 3.8 List of Sealing Materials for Wetting Liquid and Gas Part Products Units Parts Name Name of Sealing Parts Materials of Packing/O-ring Rear Cover Rear Packing V#652 Gauge Head Check Shaft O-ring FKM Sprocket Shaft Oil Seal FKM Blind Board Packing NBR 9 Sheave Elbow Aluminum Sheave Elbow Stainless Steel Sheave Elbow Rear Packing V#652 Bearing O-ring Silicon Rubber LT5- Aluminum Sheave Elbow Rear Packing V#652 Bearing O-ring Silicon Rubber Liquid Seal Unit Stainless Steel Sheave Elbow PVC Sheave Elbow Rear Packing V#652 Bearing O-ring Silicon Rubber Rear Packing V#652 Bearing O-ring PTFE Top Anchor Top Anchor Aluminum Threaded Type Stainless Tank Welding Type Aluminum Flange/Threaded Type Stainless Flange Welding Type Rear Packing Spring Negator Packing V#652 LT5-4/LT5-6 LT5-4 Gauge Head Gate Valve 9 Sheave Elbow 35 Sheave Elbow Rear Cover Rear Packing V#652 Check Handle Gland Packing PTFE/CR Internal Magnet Cover O-ring PTFE External Magnet Cover O-ring Coupling O-ring PTFE Shaft Shaft Packing PTFE Cap Nut Packing V#652 Cover Rear Packing V#652 Bearing O-ring PTFE Cover Rear Packing V#652 Bearing O-ring PTFE NBR (* When selecting copper free, the material of O-ring is CR.) Top Anchor Flange Integral Pattern Stainless Flange Welding Type Spring Negator Packing V#652 LT5-6 9 Sheave Elbow 35 Sheave Elbow Cover Rear Packing V#652 Bearing O-ring PTFE Cover Rear Packing V#652 Bearing O-ring PTFE Top Anchor Rolled Steel Flange Welding Type Stainless Flange Welding Type Spring Negator Packing V# Endress+Hauser

23 Float Tank Gauge LT5 3 Installation 3.9 General View of Standard Specifications and Order Codes 3.9. Cone Roof Tank (CRT) 9 Sheave Elbow Top Anchor Measuring Tape Float Gauge Supporter Gauge Head Washer Bolt Nut Guide Wire Guide Wire Anchor Hook Weld Wire Hook Figure 5: Cone Roof Tank (CRT) Order Code (LT5-A3BA2+PA) Feat. Feature Text Option Option Text Qty. 2 Gauge Head...96bar/.96MPa/2.84psi, Alu (ADC2), Low pressure 3 Gauge Head Connection Rc -/2, union nut, SUS36, thread JIS B23 4 Display; Cover A Dial display; Acrylic 5 Crank Unit Not selected 6 Measuring Range 3 m 7 Measuring Tape Measuring tape, CRT 8 Float B D4mm SUS36 tape connection 5.kg, density range >=.65...<.5, rings 9 Top Anchor 2x R, Alu (ADC6), thread JIS B23 Guide Wire A Diameter 3mm solid wire Bottom Anchor; Fixing Bolt Iron; SUS Degree Sheave Elbow 2 2x Rp-/2, Alu (ADC6), thread JIS B Degree Sheave Elbow Not selected 4 Seal Pot Not selected Valve Not selected 62 >>Accessory Enclosed PA Gauge supporter, Iron Endress+Hauser 23

24 3 Installation Float Tank Gauge LT Installation at Tank Top for Underground Tank 53 Top Anchor Measuring Tape Float Washer Bolt Nut Guide Wire Guide wire Anchor Hook Weld Wire Hook Figure 6: Underground Tank Order Code (LT5-C22BA) Feat. Feature Text Option Option Text 2 Gauge Head...96bar/.96MPa/2.84psi, Alu (ADC2), Low pressure 3 Gauge Head Connection Rc -/2, union nut, SUS36, thread JIS B23 4 Display; Cover C Dial display upside down; Glass + Iron Qty. 5 Crank Unit Not selected 6 Measuring Range 2 5m 7 Measuring Tape 2 Measuring tape, tank top installation 8 Float 9 B D4mm SUS36 tape connection 5.kg, density range >=.65...<.5, rings Top Anchor 2x R, Alu (ADC6), thread JIS B23 Guide Wire A Diameter 3mm solid wire Bottom Anchor; Fixing Bolt Iron; SUS Degree Sheave Elbow Not selected 3 35 Degree Sheave Elbow Not selected 4 Seal Pot Not selected 5 Valve Not selected Endress+Hauser

25 Float Tank Gauge LT5 3 Installation Cone Roof Tank with Seal Pot 9 Sheave Elbow Seal Pot Top Anchor Measuring Tape Float - Gauge Supporter Gauge Head Anchor Hook Guide Wire Bolt Washer Nut Guide Wire Anchor Hook Welding Point Figure 7: Cone Roof Tank with Seal Pot Order Code (LT5-AA23BBA2AF+PA) Feat. Feature Text Option Option Text Qty. 2 Gauge Head...96bar/.96MPa/2.84psi, Alu (ADC2), Low pressure 3 Gauge Head Connection A K 4A RF, Alu (AC4A), flange JIS B222 4 Display; Cover A Dial display; Acrylic 5 Crank Unit Not selected 6 Measuring Range 2 5m 7 Measuring Tape 3 Measuring tape, seal pot/bt 8 Float B D4mm SUS36 tape connection 5.kg, density range >=.65...<.5, rings 9 Top Anchor B 2x K 4A RF, SUS36, flange JIS B222 Guide Wire A Diameter 3mm solid wire Bottom Anchor; Fixing Bolt 2 SUS36; SUS Degree Sheave Elbow A x K 4A RF, Alu (ADC6+AC4A), flange JIS B Degree Sheave Elbow Not selected 4 Seal Pot F K 4A RF, SUS36, flange JIS B222 5 Valve Not selected 62 >>Accessory Enclosed PA Gauge supporter, Iron Endress+Hauser 25

26 3 Installation Float Tank Gauge LT Cone Roof Tank with Seal Pot PVC 3 to 4mm Measuring Wire Bind the measuring wire with Ø.5 provided teflon tube to 5 times. Seal Pot Top Anchor Measuring Tape (PFA Coating) Float 8 or more 9 Sheave Elbow Set joint to be positioned at an approx. level mm below the guide elbow when liquid level is zero and approx. mm above the gauge head when full. Measuring Wire Bind Ø.5 stainless wire to 5 times. Measuring Tape 3 to 4mm Gauge Supporter Gauge Head Guide Wire (PFA Coating) Coat the wire hooks if necessary. Guide Wire Protector (supplied by customers) Wire Hook Figure 8: Cone Roof Tank with Seal Pot PVC Order Code (LT5-AA25HNC4AN+PA) Feat. Feature Text Option Option Text 2 Gauge Head...96bar/.96MPa/2.84psi, Alu (ADC2), Low pressure Qty. 3 Gauge Head Connection A K 4A RF, Alu (AC4A), flange JIS B222 4 Display; Cover A Dial display; Acrylic 5 Crank Unit Not selected 6 Measuring Range 2 5m 7 Measuring Tape 5 8 Float H Measuring tape + PFA coated wire, seal pot/crt D4mm PVC wire connection 5.kg, density range >=.65...<.5, rings 9 Top Anchor N 2x K 4A FF, PVC, flange JIS B222 Guide Wire C Diameter 4.6mm strand wire, PFA coated Bottom Anchor; Fixing Bolt 4 SUS36; PVC 2 9 Degree Sheave Elbow A x K 4A RF, Alu (ADC6+AC4A), flange JIS B Degree Sheave Elbow Not selected 4 Seal Pot N K 4A FF, PVC, flange JIS B222 5 Valve Not selected 62 >>Accessory Enclosed PA Gauge supporter, Iron Endress+Hauser

27 Float Tank Gauge LT5 3 Installation Compact Cone Roof Tank for Guide Pipe Method 9 Sheave Elbow Vent Hole Measuring Tape Guide Pipe Float Gauge Supporter Gauge Head Figure 9: Compact Cone Roof Tank for Guide Pipe Method Order Code (LT5-A2L2+PA) Feat. Feature Text Option Option Text Qty. 2 Gauge Head...96bar/.96MPa/2.84psi, Alu (ADC2), Low pressure 3 Gauge Head Connection Rc -/2, union nut, SUS36, thread JIS B23 4 Display; Cover A Dial display; Acrylic 5 Crank Unit Not selected 6 Measuring Range 2 5m 7 Measuring Tape Measuring tape, CRT 8 Float L D4mm SUS36 tape connection 2.4kg, density range >=.94...<= 2., no rings 9 Top Anchor Not selected Guide Wire Not selected Bottom Anchor; Fixing Bolt Not selected 2 9 Degree Sheave Elbow 2 2x Rp-/2, Alu (ADC6), thread JIS B Degree Sheave Elbow Not selected 4 Seal Pot Not selected 5 Valve Not selected 62 >>Accessory Enclosed PA Gauge supporter, Iron 2 Endress+Hauser 27

28 3 Installation Float Tank Gauge LT Mounting LT at Tank Top Using Guide Pipe Method Gauge Head Vent Hole Guide Pipe Measuring Tape Float Ø Figure 2: Mounting LT at Tank Top Order Code (LT5-C22L+PA) Feat. Feature Text Option Option Text 2 Gauge Head...96bar/.96MPa/2.84psi, Alu (ADC2), Low pressure 3 Gauge Head Connection Rc -/2, union nut, SUS36, thread JIS B23 4 Display; Cover C Dial display upside down; Acrylic Qty. 5 Crank Unit Not selected 6 Measuring Range 2 5m 7 Measuring Tape 2 Measuring tape, tank top installation 8 Float L D4mm SUS36 tape connection 2.4kg, density range >=.94...<= 2., no rings 9 Top Anchor Not selected Guide Wire Not selected Bottom Anchor; Fixing Bolt Not selected 2 9 Degree Sheave Elbow Not selected 3 35 Degree Sheave Elbow Not selected 4 Seal Pot Not selected 5 Valve Not selected 62 >>Accessory Enclosed PA Gauge supporter, Iron 28 Endress+Hauser

29 Float Tank Gauge LT5 3 Installation Gas Holder Wire Guide Socket Gas Holder Wire Hook 9 Sheave Elbow Set joint to be positioned at an approx. level mm belowthe guide elbow when liquid level is zero and approx. mm above the gauge head when full. Measuring Wire Bind Ø.5 stainless wire to 5 times. Measuring Tape Gauge Supporter Gauge Head Figure 2: Gas Holder Order Code (LT5-A342+PAPFPH) Feat. Feature Text Option Option Text Qty. 2 Gauge Head...96bar/.96MPa/2.84psi, Alu (ADC2), Low pressure 3 Gauge Head Connection Rc -/2, union nut, SUS36, thread JIS B23 4 Display; Cover A Dial display; Acrylic 5 Crank Unit Not selected 6 Measuring Range 3 m 7 Measuring Tape 4 Measuring tape + wire, FRT 8 Float Not selected 9 Top Anchor Not selected Guide Wire Not selected Bottom Anchor; Fixing Bolt Not selected 2 9 Degree Sheave Elbow 2 2x Rp-/2, Alu (ADC6), thread JIS B Degree Sheave Elbow Not selected 4 Seal Pot Not selected 5 Valve Not selected 62 >>Accessory Enclosed PA Gauge supporter, Iron 62 >>Accessory Enclosed PF Wire guide socket, RC-/2 62 >>Accessory Enclosed PH Gas holder wire hook 2 Endress+Hauser 29

30 3 Installation Float Tank Gauge LT Floating Roof Tank (FRT) 9 Sheave Elbow 3-Ø Wire Guide Metal Wire Guide Socket Set joint to be positioned at an approx. level mm below the guide elbow when liquid level is zero and approx. mm above the gauge head when full. 7 or more 25 3 to 4mm Measuring Wire Bind Ø.5 stainless wire to 5 times. Measuring Tape FRT Wire Guide Metal Approx. Float and Measuring Wire Connection 3 to 4mm Measuring Wire Bind Ø.5 stainless wire to 5 times. Guide Bar Ø6 Ø4 2 to 3 Gauge Supporter Gauge Head Pipe End B Sch 4 to or more Approx. 2 3 Figure 22: Floating Roof Tank Order Code (LT5-A54E2+PAPEPF) Feat. Feature Text Option Option Text 2 Gauge Head...96bar/.96MPa/2.84psi, Alu (ADC2), Low pressure 3 Gauge Head Connection Rc -/2, union nut, SUS36, thread JIS B23 4 Display; Cover A Dial display; Acrylic Qty. 5 Crank Unit Not selected 6 Measuring Range 5 2m 7 Measuring Tape 4 Measuring tape + wire, FRT 8 Float E D4mm SUS36 wire connection 5.kg, density range >=.65...<.5, rings 9 Top Anchor Not selected Guide Wire Not selected Bottom Anchor; Fixing Bolt Not selected 2 9 Degree Sheave Elbow 2 2x Rp-/2, Alu (ADC6), thread JIS B Degree Sheave Elbow Not selected 4 Seal Pot Not selected 5 Valve Not selected 62 >>Accessory Enclosed PA Gauge supporter, Iron 62 >>Accessory Enclosed PE Wire guide metal FRT 62 >>Accessory Enclosed PF Wire guide socket, RC-/2 2 3 Endress+Hauser

31 Float Tank Gauge LT5 3 Installation Doom Roof Tank for Medium Pressure 9 Sheave Elbow Top Anchor Plug Gate Valve Measuring Tape Float Gauge Supporter Gauge Head Guide Wire Anchor Hook Washer Bolt Guide Wire Anchor Hook Nut Weld Anchor Hook Approx. 2 Figure 23: Dome Roof Tank for Medium Pressure Order Code (LT5-44AB5R4AA24A2+PA) Feat. Feature Text Option Option Text 2 Gauge Head bar/.987MPa/4.22psi, Alu (AC4CT6), medium pressure 3 Gauge Head Connection 4A K 4A RF, alu (AC4CT6), flange JIS B222 4 Display; Cover B Dial display; Glass + Iron Qty. 5 Crank Unit Selected 6 Measuring Range 5 2m 7 Measuring Tape Measuring tape, CRT 8 Float R D4mm SUS36 tape connection 8.3kg, density range >=.5...<=.7, rings 9 Top Anchor 4A 2x K 4A RF, Alu (AC4CT6), flange JIS B222 Guide Wire A Diameter 3mm solid wire Bottom Anchor; Fixing Bolt 2 SUS36; SUS Degree Sheave Elbow 4A2 2x K 4A RF, Alu (AC4CT6), flange JIS B Degree Sheave Elbow Not selected 4 Seal Pot Not selected 5 Valve K 4A RF, SCS3, flange JIS B >>Accessory Enclosed PA Gauge supporter, Iron Endress+Hauser 3

32 3 Installation Float Tank Gauge LT Spherical Tank for High Pressure 9 Sheave Elbow 35 Sheave Elbow Top Anchor Plug Gate Valve Measuring Tape Float Guide Wire Gauge Head Anchor Hook Gauge Supporter Anchor Hook Washer Bolt Nut Guide Wire Anchor Hook Weld Figure 24: Spherical Tank for High Pressure Order Code (LT5-66GB53R6GA26G6G24+PC) Feat. Feature Text Option Option Text 2 Gauge Head bar/2.45MPa/355.25psi, Iron, high pressure Qty. 3 Gauge Head Connection 6G 2K 4A RF, Iron, flange JIS B222 4 Display; Cover B Dial display; Glass + Iron 5 Crank Unit Selected 6 Measuring Range 5 2m 7 Measuring Tape 3 Measuring tape, seal pot/bt 8 Float R D4mm SUS36 tape connection 8.3kg, density range >=.5...<=.7, rings 9 Top Anchor 6G 2x 2K 4A RF, Iron, flange JIS B222 Guide Wire A Diameter 3mm solid wire Bottom Anchor; Fixing Bolt 2 SUS36; SUS Degree Sheave Elbow 6G x 2K 4A RF, Iron, flange JIS B Degree Sheave Elbow 6G2 2x 2K 4A RF, Iron, flange JIS B222 4 Seal Pot Not selected 5 Valve 4 2K 4A RF, SCS3, flange JIS B >>Accessory Enclosed PC Gauge supporter, Iron, high pressure 32 Endress+Hauser

33 Float Tank Gauge LT5 3 Installation 3. Guide Wire Installation Installation Procedure CAUTION Be careful not to bend the guide wire [3] Two guide wires should be arranged in parallel to one other and perpendicular to the tank floor. Check two packings (for top anchor and tank flange) on which slip washers are used, before setting the guide wires. Repairing the guide wires and anchor hooks, once the tank is full, can be very difficult. Be sure to inspect their hardness before filling.. Open the cover of the top anchor located in the top of the tank. 2. Straighten the guide wire, and lower it from the center hole in the top anchor, then temporarily attach the end of the wire to the top anchor. 3. Insert the guide wire into the guide ring [] on the float at the bottom of the tank then, secure the guide wire to the anchor hooks by using two bolts [2] and nuts. 4. Cut and bend the end of the guide wire to prevent it from getting caught in the float. Place the guide wire against the surface of inside anchor hook B and insert it through the anchor hook hole. Wind the end of the guide wire so that the excess is within dimension A. Wind the wires to 2 times each, on both the B and C sides. Adjust the number of times wound as needed. Guide Wire [3] Measuring Tape [7] Guide Ring [] Universal Joint [9] Nut [6] B Washer [] Bolt [2] Float [8] Anchor Hook [4] A C Guide Wire [3] Welding Part [5] Anchor Hook [4] Figure 25: Guide Wire Installation Endress+Hauser 33

34 3 Installation Float Tank Gauge LT5 Nut [2] Nut [] 2 to 3mm Nut [3] Figure 26: Guide Wire Installation 2 5. Extend guide wire to the top of the tank and secure it to the top anchor. 6. Bend end of the guide wire against the main shaft and cut it off leaving approx.mm. 7. Tighten the end nuts [] and [2]. 8. Secure the wire with the nut [3] and release the spring. This completes the installation procedure. 34 Endress+Hauser

35 Float Tank Gauge LT5 3 Installation 3. Measuring Tape and Measuring 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 2mm (for feet: inch) along half of the entire length of measuring tape. Attach the measuring tape to LT so that the side with the holes are wound by LT. Check to make sure the measuring tape does not come off the sheave elbow roller. Inspect the measuring tape after installation. Secure the safety of workers to counteract the exteme dangers of poor footing when measuring wire is required to be inserted into 35 sheave elbows. Repairing the connection components between the float and measuring wires, once the tank is fill, can be very difficult. Be sure to inspect them thoroughly before filling. Measuring Tape Preparation Procedure. Extend the measuring wire and fold, as shown below to a length of.5m so as not to twist it. 2. Open the rear cover of LT and sheave elbow cover. 3. Attach the measuring wire without twisting. This completes the measuring tape installation. Extend measuring wire and fold it at a length of.5m Approx..5m With Small Hole Without Small Hole Sheave Elbow Cover Figure 27: Measuring Tape Preparation Endress+Hauser 35

36 3 Installation Float Tank Gauge LT5 3.. Measuring Tape Installation at Cone Roof Tank Installation Procedure. Insert the non-perforated side of the measuring tape directly into the tank from the 9 sheave elbow. 2. Insert the other end of the measuring tape (perforated and looped) through the 9 sheave elbow to LT located directly above the tank. 3. Secure end of the measuring tape to tape drum, wind tape twice around drum and pull into tank. 4. Cut the measuring tape off leaving approx..5m 5. Connect the measuring tape to the float. Refer to "3..2 Connection Procedure of Measuring Tape to Float" for details on the connection of the measuring tape. 6. Confirm that measuring tape is not twisted. 7. Replace the sheave elbow cover. This completes the measuring tape installation at cone roof tank. When installing measuring tape; Guide Pipe Approx..5m Figure 28: Measuring Installation When installing measuring tape and measuring wire; Guide Pipe Approx..5m Figure 29: Measuring Tape Wire Installation 36 Endress+Hauser

37 Float Tank Gauge LT5 3 Installation 3..2 Connection Procedure of Measuring Tape to Float. Bend the measuring tape at the length of 65mm. 2. Bend the measuring tape once again at the location shown above. 3. Bend the measuring tape twice at the center. 4. Insert the joint shaft into the bended measuring tape. 5. Insert the tape clamp into the loop of the tape. 6. Tighten the clamp strip with a bolt and nut. 7. Strip the protruding end of the bolt with pliers to lock the nut. This completes the connection procedure of measuring tape to float. Step Step 2 Step 3 65mm 65mm 65mm Step 4 Step5 Joint Shaft Tape Clamp Step 6 Step 7 Screw Thread Figure 3: Connection of Measuring Tape to Float Endress+Hauser 37

38 3 Installation Float Tank Gauge LT Measuring Tape Installation at Floating Roof Tank Installation Procedure. Insert the end of the measuring wire into the tank through the 9 sheave elbow. 2. Attach the other end of the measuring tape to the tank. 3. Connect the measuring wire to the float. 4. Connect the measuring wire to the measuring tape on the top of the tank and feed the measuring tape to LT. 5. Confirm that measuring tape is not twisted. 6. Replace the sheave elbow cover. This completes the measuring tape installation at floating roof tank. 9 Sheave Elbow 3-Ø Wire Guide Metal Wire Guide Socket Set joint to be positioned at an approx. level mm below the guide elbow when liquid level is zero and approx. mm above the gauge head when full. 7 or more 25 3 to 4mm Measuring Wire Bind Ø.5 stainless wire to 5 times. Measuring Tape FRT Wire Guide Metal Approx. Float and Measuring Wire Connection 3 to 4mm Measuring Wire Bind Ø.5 stainless wire to 5 times. Guide Bar Ø6 Ø4 Gauge Supporter Gauge Head Pipe End B Sch 4 to or more Approx. 2 2 to 3 3 Figure 3: Measuring Wire 38 Endress+Hauser

39 Float Tank Gauge LT5 3 Installation 3..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. There are small holes at intervals of 2mm (for feet: inch) along half of the entire length of measuring tape. Attach the measuring tape to LT so that the side with the holes are wound by LT. Check to make sure the measuring tape does not come off the sheave elbow roller. Inspect the measuring tape after installation. Secure the safety of workers to counteract the exteme dangers of poor footing when measuring wire is required to be inserted into 35 sheave elbows. Repairing the connection components between the float and measuring wires, once the tank is fill, can be very difficult. Be sure to inspect them thoroughly before filling. Installation Procedure. Rotate gate valve counter clockwise and open gate valve completely, and then remove sheave elbow cover and rear cover of LT. Remove gland of the gauge head rear cover with a gland fixing tool. Remove O-rings (2pcs.). 2. Remove tape guide [2], and lock screw [3]. 3. Insert non-perforated end of the measuring tape into tank through 9 sheave elbow (refer to Figure 33). 4. Insert the perforated and looped end of the measuring tape thorough 35 sheave elbows to LT (refer to Figure 34). 5. Once the measuring tape is inserted into measuring gauge through narrow opening in dust cover [], secure to the tape drum [5] with set screw [4], then wind the tape twice around tape drum. 6. Loosen screws (2pcs.) and adjust measuring tape [7] so that it does not obstruct opening in dust cover. 7. Pull measuring tape inside the tank. 8. Cut measuring tape off leaving approx..5m. 9. Connect measuring tape to the float. Refer to "3..2 Connection Procedure of Measuring Tape to Float" for details on the connection of the measuring tape.. Confirm that measuring tape is not twisted.. Replace sheave elbow cover. 2. Follow Figure 33 and tighten gland. This completes the installation procedure. Before Tightening Gland After Tightening Gland Gland Fixing Tool Gland O-ring Gland Figure 32: Gland Fixing Tool Endress+Hauser 39

40 3 Installation Float Tank Gauge LT5 Dust Cover [] Measuring Tape [7] Sprocket [6] Tape Guide [2] Tape Drum [5] Lock Screw [3] Set Screw for Tape [4] Figure 33: LT Parts Configuration Guide Wire Measuring Tape Cut the measuring tape off leaving approx..5m from the connection of the float after connecting measuring tape to the tank. Figure 34: Measuring Tape Installation 4 Endress+Hauser

41 Float Tank Gauge LT5 3 Installation 3..5 Internal Parts Adjustment Tape Guide Adjustment Procedure. Turn the LT tape drum [5] in the direction indicated by arrow to put tension on the measuring tape (refer to Figure 35). Measuring Tape [7] Dust Cover [] Sprocket [6] Tape Guide [2] Tape Drum [5] Lock Screw [3] Set Screw for Tape [4] Figure 35: Tape Drum 2. After the measuring tape is properly set, adjust the two tape guide heads so that they are positioned at 2mm from the tape surface. The measuring tape may come off the sprocket pins [6] since it moves abruptly with liquid waves. The tape guide prevents this. 3. When the dust cover is installed, loosen screws (2pcs.) and adjust measuring tape [7] so that it does not obstruct opening in dust cover. This completed the tape guide adjustment procedure. Sprocket Measuring Tape Set at approx. 2mm Set Screw Meas. Tape Tape Guide 2mm Figure 36: Tape Guide Adjustment Endress+Hauser 4

42 3 Installation Float Tank Gauge LT Setting Conster Drum Setting Procedure The conster drum should be set after the measuring tape has been installed. WARNING When winding the conster motor from the large drum to the small drum, keep a firm grip on the large drum until the spring is completely wound. Releasing it may result in injury due to the spring recoiling. CAUTION The conster may separate from the track of the large conster drum, or disproportionate torque may result when the excessive force is applied, resulting in inaccurate readings. Handle with care. When winding the conster from the small conster drum to the large conster drum, keep firm grip on the large drum until the measuring tape is taut.. After confirming that the lock screw has been removed, secure the head of the conster to the large conster drum with the bolts and nuts. 2. Rotate the conster drum in the direction indicated by the figure below. 3. When fixing the conster drum, rotate the tape drum counter clockwise to tighten the tape. 4. When the tank is empty, roll the tape twice around a small conster drum and secure it with bolts. Once the tank is fill, measure the surface level of the fluid and use the equation on the following page to determine the number of times the tape should be rolled. Roll the tape around a large conster drum the exact number of times required based on the calculation. 5. Replace rear cover. 6. Close the gland of LT5-4 or LT5-6 rear cover. This completes the setting procedure. Number of turns = Tank height (measuring span) - Actual liquid level.6 (unit: m) Small Conster Drum Lock Screw Large Conster Drum Figure 37: Conster Drum Setting Correct Incorrect Incorrect Incorrect 42 Endress+Hauser

43 Float Tank Gauge LT5 3 Installation 3.2 Liquid Sealant for Seal Pot 3.2. 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. Parts of the drawing shown below may vary, depending on order code selected by customers. 2. Hoist the float up and down manually to confirm that the dial (or counter) display changes accordingly. 9 Sheave Elbow Seal Pot Top Anchor Measuring Tape Float - Gauge Supporter Gauge Head Anchor Hook Guide Wire Bolt Washer Nut Guide Wire Anchor Hook Welding Point Figure 38: LT with Seal Pot Endress+Hauser 43

44 3 Installation Float Tank Gauge LT5 3. After LT operation check, remove the sheave elbow cover [] and fill with liquid sealant (refer to Figure 39). CAUTION After administering liquid sealant and checking LT operation, the liquid sealant may leak into the tank through the measuring tape. 9º Sheave Elbow [] Liquid Sealant Indicator [2] Inside Tank To LT Side Figure 39: Filling Seal Pot with Liquid Sealant 4. Administer liquid sealant until it comes up to the center of the indicator [2]. 5. Replace 9 sheave elbow cover []. This completes the liquid sealant filling procedure. CAUTION 2 l (liter) of liquid sealant is contained in the kit. When administering the proper amount of liquid sealant, a small amount will remain in the bottle. Do not dispose remaining liquid sealant. It is used as needed, following running LT. 9º Sheave Elbow Cover Liquid Sealant Liquid Sealant Indicator [2] Figure 4: Amount of Liquid Sealant Inside Tank To LT Side CAUTION If the tank is run without liquid sealant, LT seals, O-rings, or sheave elbows may be damaged by gas contained the tank, and may cause LT to malfunction. Be sure to administer liquid sealant prior to tank operation. 44 Endress+Hauser

45 Float Tank Gauge LT5 3 Installation 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. Exercise caution against substance from containers which used to drain liquid sealant.. Prepare a container for 2 l (liter) or more [5] and place under the sheave elbow outlet. 2. After confirming the safety of the vicinity around the tank, remove the seal pot drain bolt [4]. 3. Drain the liquid sealant from the seal pot. 4. Remove the cover [3] of the 9 sheave elbow [2]. 9 Sheave Elbow [2] Sheave Elbow [] 9 Sheave Elbow Cover [3] Drain Bolt [4] Container for 2 or more [5] To LT Side Figure 4: Draining Seal Liquid 5. Tighten the drain bolt and fill until liquid sealant reaches the center of the indicator on the seal pot side. 6. Replace the sheave elbow. This completes the filling seal liquid procedure. 9º Sheave Elbow Cover Liquid Sealant Liquid Sealant Indicator [2] Inside Tank To LT Side Figure 42: Filling Seal Liquid Endress+Hauser 45

46 4 Display Float Tank Gauge LT5 4 Display 4. Dial Display Pointer Setting and Scale Reading Procedure NOTICE When calibrating (pointer setting) to authorized value as calculated value or measured value, calibrating procedure will depend on which display type is used. Use the dial type display when tank height is 2m or less, and use the counter type display when tank height is 2m or more.. Remove the indication cover and loosen the cap nut. The long indicator needle (white) can be turned freely, whereas the short one (green-yellow) can be freed by pulling it. 2. Align the short needle with inner scale (mm/one scale), as it corresponds to lower value in liquid level. 3. Align the long needle with the outer scale. As one scale notch corresponds to mm, the outer scale is aligned visually, according to the lower two digits in liquid level value. 4. After aligning the needles, tighten the cap nut firmly. Long indicator needle (outer scale): mm, mm, mm values; Short indicator needle (inner scale): mm, mm values. This completes the setting and reading procedure. Short Indicator Needle (Green) Long Indicator Needle (White) In case of mm, set / of one scale notch Cap Nut Figure 43: Dial Display 46 Endress+Hauser

47 Float Tank Gauge LT5 4 Display 4.2 Counter Display Counter Display Procedure. Remove the indicator cover. 2. Loosen the screw at the center of the scale plate. The scale plate can rotate freely ( scale notch is equivalent to mm.). The counter changes one digit for every notch ( mm) the scale plate moves. 3. Rotate the scale plate and align the numerical value of the counter to the three upper digits values of liquid level. 4. Align the scale plate to the pointer which corresponds to the two lower digit values in liquid level, then tighten the scale plate screw. If the pointer is indicating a range of between 97 and 3 on the scale plate, as in the figure below, the counter will not change instantly. As it changes gradually, keeping constant the relation between the rotation of the scale plate and numerical change, the counter will display half values. Thus, in order to rule out incorrect reading, the counter window and parts of the scale plate are correlated by color. This completes the counter display procedure. Dial Plate Yellow Pointer (Red) Yellow When the red pointer points to yellow on the scale, corresponds to the yellow side of counter, when it points to black on the scale, this corresponds to the black side of counter. Yellow Side Black Side Yellow side : 4 mm Black side : 3999 mm Screw Third Drum Second Drum First Drum Figure 44: Counter Display Endress+Hauser 47

48 4 Display Float Tank Gauge LT5 4.3 Indication Adjustment Following are the three universal procedures for indicator adjustment: Fill the tank with actual liquid and calibrate the indicator to measured volume. With the tank empty, calibrate the indicator using formulaic calculations. Fill the tank with water and calibrate the indicator to measured volume Calibration Using Actual Measuring Liquid In order to obtain a reliable value, measure the liquid level two or three times, using a measuring tape which has been officially tested accurate to within ±.3 mm/m (±.2mm/ m). Calibrate to the values only after accurate data has been gathered Calibration through Calculation for Empty Tank. When the tank is empty, calculate the liquid level Lƒ using the following formula and set indicator to the determined value. 2. When liquid reaches to the value of Lƒ, the float gains buoyancy and LT will show proper liquid level. Lf = { Hf + (W - w) - Q x } x A x Lf = + { x } Assign specific density to the formula above. LT5-4/LT5-6 Lf: When a float start to float, level height (mm) W: Float Weight: 83g A: Cross Section Area of Float Cylindrical Part (cm 2 ): cm 2 Hf: Half of Float Height (mm): mm w: Measuring Tape Hoisting Force in Conster (g): 2g ρ: Density of Actual Liquid Q: Half of Float Volume (cm 3 ): 96cm 3 When float is installed in a spherical tank, where it will tend to deviate off center, find Lx in the formula below and add it to the product of Lƒ in formula 2 above. Lx = D - D² S2 Lx: Correction Amount of Liquid Level Indication by Deviation Caused by Float Installation (mm) D: Diameter of Spherical Tank (mm) S: Deviation Distance from Center of Tank to Center of Float (mm) 48 Endress+Hauser

49 Float Tank Gauge LT5 4 Display D Center of Tank Tank Diameter Center of Float Lx Figure 45: Setting Indicator of Spherical Tank Calibration Water Filling Procedure When LT installation is complete, the water filling test is generally performed. Since measuring for level is usually more difficult with other liquids, calibrating to water is recommended. The indicator will be calibrated one again when the tank is filled with a commodity liquid. Using the following formula, calculate the difference between where the float gains buoyancy in both water and commodity liquid. Then correct the indicator value with water in the tank (refer to Graphs and 2) before filling it with a commodity liquid. L B L B W - w = A = LT5-4/LT5-6 L B : When filling water, Indicator corrective value (mm) W : Float Weight (g):83g A : Aross-sectional area of float cylindrical part (cm2): Hf : Half of float height (cm):cm w : Measuring tape hoising force in conster (g):2g : Density of actual liquid (g/cm 3 ) Q : Half of float volume (cm3): 96cm 3 After setting the LT indicator to the measured value for water, determine L B in the formula above. If the value of L B is a positive integer, add that value to the determined indicator value. If the value of L is a negative integer, subtract that value from the determined indicator value. This will be the final indicator value. Endress+Hauser 49

50 4 Display Float Tank Gauge LT5 Ø4 Float Calculating Formula for LT5- Lf When a float start to float, level height (mm) Density of actual liquid g/cm ) W Float weight (g) Q Half of float volume cm ) A Cross-sectional area of float cylindrical part (cm 2 LB When filling water, indicator corrective value (mm) Hf Half of float height cm w Measuring tape hoisting force in conster (g when tank is empty Lf = { Hf + = { W-w - Q } A W } When putting water in tank LB= W-w A -) = W ) Water Draft to density.g/cm 3 Draft to density LB> Draft to density Lf 4 LB< 4 9 Ø 4 float kg L B kg L B f(mm) kg L 5.kg L 8.kg L - B (mm) 4 8.kg L B Graph Measuring liquid density (g/cm 3 Figure 46: Indicator Value for Ø4 Float 5 Endress+Hauser

51 Float Tank Gauge LT5 4 Display Ø4 float Calculating Formula for LT5- Lf When a float start to float, Level heignt (mm) Density of actual liquid g/cm ) W Float weight (g) Q Half of float volume cm ) A Cross-sectional area of float cylindrical part (cm 2 LB When filling water, indicator corrective value (mm) Hf Half of float height (cm) w Measuring tape hoisting force in conster (g) when tank is empty Lf = { Hf + = { + W-w - Q } A W } When putting water in tank LB= W-w A -) = W ) Draft density Water Draft to density.g/cm 3 Draft to density Lf LB> Ø4 LB< Ø4 4 3 Ø4 float kg L B 3 2 f(mm) kg L 2.4kg L - B (mm) kg L B Graph 2 Measuring liquid density (g/cm 3 Figure 47: Indicator Value for Ø4 Float Endress+Hauser 5

52 4 Display Float Tank Gauge LT Correction Curve of Indicator by Density Variation of LT5-4/ LT5-6 If the liquid is altered from a relative density of.74g/cm 3 to.6g/cm 3, for example, the correction value will show +8mm as demonstrated by the following graph. Thus, an adjustment of +8mm to the actual value is needed. NOTICE Install the indicator cover so that the plastic pipe is on the bottom Secific Density (g/cm³) Error Value (mm) Ø4 Float Weight: 8.3kg Figure 48: Correction Curve of Indicator by Density Variation 52 Endress+Hauser

53 Float Tank Gauge LT5 4 Display LT startup and Handling Precautions for Water and Airtightness 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. To prevent such incidents, be sure to complete the following procedures. By taking these preventive steps, misshapes can be avoided early on.. For high pressure tanks, be sure to keep the plug gate valve open and set the tank level gauge to measurement mode. Failure to open the valve may result in measuring tape failure. If the valve is not open while filling tank with water, drain the water or remove the sheave elbow cover. Then, stop the measuring tape by hands, open the valve gradually and reel the measuring tape to LT. 2. For the water test, open the water-feed valve partially and supply water to a depth of 5 to mm. 3. Large amount of water may damage the measuring tape. If the float is in close proximity to an inlet, install the wave guard so float is unaffected. 4. If test for airtightness is performed while opening the gate valve, make sure the following components are firmly tightened. Drain plug on the bottom of LT Rear cover bolts Gland of gauge head rear cover Sheave elbow covers If these items are not secure, large volumes of air may discharge from the system, causing vibrations that will damage the measuring tape. 5. When opening LT rear cover upon completion of airtightness check test, confirm that the inner tank is either at atmospheric pressure or that the gate valve is closed before opening LT. Do not open LT or sheave elbow covers to abruptly discharge compress ion built up by the airtightness check test. This will damage the measuring tape. 6. Be sure to open the gate valve when filling tank with commodity liquids such as liquefied gas. Closing the gate valve must be restricted almost exclusively to the emergencies or to period of maintaining liquid level. Endress+Hauser 53

54 5 Operation Float Tank Gauge LT5 5 Operation 5. 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 handle. Refer to "5.2 Handling of Hoisting Handle" for details on using the hoisting handle. Check Handle Using Procedure. Push the check handle, attached to the bottom of LT, inside LT. 2. Push while rotating the check handle to the right. 3. Rotate the check handle to the left when indicator is approx. 4 to 5mm over scale. 4. Check the LT indicator. This completes the check handle using procedure. Check Handle Gauge Head Push it down. Push while rotating the check handle to the right Figure 49: Check Handle 54 Endress+Hauser