Set up with other systems ....................42 DD adjustment programs ....................42 Field Communicator 375, 475 ..................42 Diagnostics and servicing ....................43 Maintenance ........................43 Diagnosis memory ......................43 Status messages ......................44 Rectify faults ........................47 PBD-51041061 SITRANS LG260 - Operating Instructions...
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11.3 Dimensions ........................77 11.4 Trademark ........................82 Safety instructions for Ex areas Take note of the Ex specific safety instructions for Ex applications. These instructions are attached as documents to each instrument with Ex approval and are part of the operating instructions. Editing status: 2020-01-24 SITRANS LG260 - Operating Instructions PBD-51041061...
The dot set in front indicates a list with no implied sequence. Sequence of actions Numbers set in front indicate successive steps in a procedure. Battery disposal This symbol indicates special information about the disposal of bat- teries and accumulators. PBD-51041061 SITRANS LG260 - Operating Instructions...
During work on and with the device, the required personal protective equipment must always be worn. Appropriate use SITRANS LG260 is a sensor for continuous level measurement. You can find detailed information about the area of application in chapter "Product description". Operational reliability is ensured only if the instrument is properly used according to the specifications in the operating instructions manual as well as possible supplementary instructions.
English language. Installations in the US shall comply with the relevant requirements of the National Electrical Code (ANSI/NFPA 70). Installations in Canada shall comply with the relevant requirements of the Canadian Electrical Code. PBD-51041061 SITRANS LG260 - Operating Instructions...
• Optional accessory The further scope of delivery encompasses: • Documentation – Operating instructions SITRANS LG260 – Instructions for optional instrument features – Ex-specific "Safety instructions" (with Ex versions) – If necessary, further certificates Information: Optional instrument features are also described in this operating instructions manual.
14 Hardware and software version Principle of operation Application area The SITRANS LG260 is a level sensor with cable or rod probe for continuous level measurement, suitable for applications in bulk solids. Functional principle - High frequency microwave pulses are guided along a steel cable or level measurement a rod.
Curved segments: 100 x 100 mm (3.94 … 3.94 in) Centering If you mount the SITRANS LG260 in a bypass tube or standpipe, you have to avoid contact to the bypass tube by using a spacer at the probe end.
Prior to setup you have to replace these protective caps with ap- proved cable glands or close the openings with suitable blind plugs. Note: Process conditions For safety reasons, the instrument must only be operated within the permissible process conditions. You can find detailed information on PBD-51041061 SITRANS LG260 - Operating Instructions...
Mounting instructions Installation position Mount SITRANS LG260 in such a way that the distance to vessel installations or to the vessel wall is at least 300 mm (12 in). In non- metallic vessels, the distance to the vessel wall should be at least 500 mm (19.7 in).
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Use a probe in coax version for applications in liquids. Fig. 3: Mounting in non-metallic vessel Flange Metal sheet Concrete vessel When mounting in thick concrete ceilings, SITRANS LG260 should be mounted front flush to the lower edge. In concrete silos, the dis- tance to the wall should be at least 500 mm (20 in). ø >160 mm (ø >6.3") Fig.
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Fig. 6: Socket must be installed flush Unfavourable mounting 2 Socket flush - optimum mounting Welding work Before beginning the welding work, remove the electronics module from the sensor. By doing this, you avoid damage to the electronics through inductive coupling. Inflowing medium Do not mount the instruments in or above the filling stream. Make sure that you detect the product surface, not the inflowing product. SITRANS LG260 - Operating Instructions PBD-51041061...
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If there is a danger of the rod probe touching the vessel wall, fasten the probe at the bottom end. Keep in mind that measurement is not possible below the fastening point. PBD-51041061 SITRANS LG260 - Operating Instructions...
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Rod extension In case of difficult installation conditions, for example in a socket, the probe can be suitably adapted with a rod extension. To compensate for the resulting changes in signal runtime, let the instrument determine the probe length automatically. You can find further information in the supplementary instructions of the rod and cable components. SITRANS LG260 - Operating Instructions PBD-51041061...
Max. torque for all housings, see chapter "Technical data". Cable screening and Make sure that the cable screen and grounding are carried out ac- grounding cording to Fieldbus specification. We recommend to connect the cable screening to ground potential on both ends. PBD-51041061 SITRANS LG260 - Operating Instructions...
6. Insert the wire ends into the terminals according to the wiring plan Note: Solid cores as well as flexible cores with wire end sleeves are insert- ed directly into the terminal openings. In case of flexible cores without end sleeves, press the terminal from above with a small screwdriver, the terminal opening is then free. When the screwdriver is released, the terminal closes again. SITRANS LG260 - Operating Instructions PBD-51041061...
Simulation switch ("1" = mode for simulation release) For external display and adjustment unit Ground terminal for connection of the cable screening Wiring plan, double chamber housing The following illustration applies to the non-Ex, Ex-ia and Ex-d ver- sion. PBD-51041061 SITRANS LG260 - Operating Instructions...
PC • Status byte goes to fault value Then the actual measured value is output to the signal cable. The value takes into account settings that have already been carried out, e.g. default setting. SITRANS LG260 - Operating Instructions PBD-51041061...
Fig. 13: Insertion of the display and adjustment module with single chamber housing Note: If you intend to retrofit the instrument with a display and adjustment module for continuous measured value indication, a higher lid with an inspection glass is required. PBD-51041061 SITRANS LG260 - Operating Instructions...
[OK] will not be saved. Switch-on phase After switching on, the SITRANS LG260 carries out a short self-test where the device software is checked. The output signal transmits a fault signal during the switch-on phase. The following information is displayed on the display and adjustment module during the startup procedure: •...
False signal suppression You can find the description of the individual menu items in the follow- ing chapter "Parameter adjustment - Extended adjustment". Parameter adjustment - Extended adjustment For technically demanding measuring points, you can carry out extended settings in "Extended adjustment". Main menu The main menu is divided into five sections with the following func- tions: PBD-51041061 SITRANS LG260 - Operating Instructions...
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In this menu item you can enter the probe length or have the length determined automatically by the sensor system. When choosing "Yes", then the probe length will be determined automatically. When choosing "No", you can enter the probe length manually. SITRANS LG260 - Operating Instructions PBD-51041061...
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< 1.5 Dusts, wood chips Wood chips, sawdust Max. adjustment level In this menu item, you can enter the max. adjustment for the level. Adjust the requested percentage value with [+] and store with [OK]. PBD-51041061 SITRANS LG260 - Operating Instructions...
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This should be done with the lowest possible level so that all potential interfering reflections can be detected. Proceed as follows: Enter the actual distance from the sensor to the product surface. SITRANS LG260 - Operating Instructions PBD-51041061...
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By activating the appropriate curve, the volume per- centage of the vessel is displayed correctly. If the volume should not be displayed in percent but e.g. in l or kg, a scaling can be also set in the menu item "Display". PBD-51041061 SITRANS LG260 - Operating Instructions...
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In the menu item "Lock/unlock adjustment", you can protect the sen- sor parameters against unauthorized or inadvertent modification. The PIN is activated/deactivated permanently. With active PIN, only the following adjustment functions are possible without entering a PIN: • Select menu items and show data SITRANS LG260 - Operating Instructions PBD-51041061...
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In delivery status, the sensor is set to English. Displayed value 1 In this menu item, you define the indication of the measured value on the display. You can display two different measured values. In this menu item, you define measured value 1. The default setting for the displayed value 1 is "Filling height Level". Displayed value 2 In this menu item, you define the indication of the measured value on the display. You can display two different measured values. In this menu item, you define measured value 2. PBD-51041061 SITRANS LG260 - Operating Instructions...
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The respective min. and max. measured value is saved in the sen- sor. The two values are displayed in the menu item "Peak values, distance". In another window you can reset the peak value. SITRANS LG260 - Operating Instructions PBD-51041061...
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Echo curve The menu item "Echo curve" shows the signal strength of the echoes over the measuring range in V. The signal strength enables an evalua- tion of the quality of the measurement. PBD-51041061 SITRANS LG260 - Operating Instructions...
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The function "Echo curve memory" enables storing echo curves of the measurement. Under the sub-menu item "Echo curve memory" you can store the current echo curve. SITRANS LG260 - Operating Instructions PBD-51041061...
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(presettings) of the respective instru- ment. Any created false signal suppression or user-programmable lin- earization curve as well as the measured value memory are deleted. The following table shows the default values of the instrument. De- pending on the instrument version or application, all menu items may not be available or some may be differently assigned: PBD-51041061 SITRANS LG260 - Operating Instructions...
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Linearisation - Socket correction 0 mm Linearisation - Vessel height Probe length Menu - Display Menu item Default value Language Selected language Displayed value 1 Filling height Level Displayed value 2 Electronics temperature Backlight Switched on SITRANS LG260 - Operating Instructions PBD-51041061...
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The following data or settings for adjustment of the display and ad- justment module are saved: • All data of the menu "Setup" and "Display" • In the menu "Additional adjustments" the items "Reset, Date/Time" • Special parameters PBD-51041061 SITRANS LG260 - Operating Instructions...
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6.4.5 Info Device name In this menu, you read out the instrument name and the instrument serial number. Instrument version In this menu item, the hardware and software version of the sensor is displayed. SITRANS LG260 - Operating Instructions PBD-51041061...
In the display and adjust- If the instrument is equipped with a display and adjustment module, ment module the parameter adjustment data can be saved therein. The procedure is described in menu item "Copy device settings". PBD-51041061 SITRANS LG260 - Operating Instructions...
A description of the update procedure is also available in the Internet. The further setup steps are described in the online help of PACTware and the DTMs. SITRANS LG260 - Operating Instructions PBD-51041061...
The quick setup is another option for parameter adjustment of the sensor. It allows fast, convenient adjustment of the most important parameters to adapt the sensor quickly to standard applications. To use it, select the function "Quick setup" in the start screen. PBD-51041061 SITRANS LG260 - Operating Instructions...
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Extended adjustment Maintenance Quick setup With quick setup you can carry out the parameter adjustment of SITRANS LG260 for your application in just a few simple steps. The assistant-driven adjustment includes the basic settings for simple, reliable setup and commissioning. Information: If the function is inactive, then possibly no instrument is connected.
Saving the parameterisation data We recommend documenting or saving the parameterisation data via PACTware. That way the data are available for multiple use or service purposes. PBD-51041061 SITRANS LG260 - Operating Instructions...
This software is updated via the Internet and new EDDs are automatically accepted into the device catalogue of this software after they are released by the manufacturer. They can then be transferred to a Field Communicator. SITRANS LG260 - Operating Instructions PBD-51041061...
• Modification of a parameter • Switch-on and switch-off times • Status messages (according to NE 107) • Error messages (according to NE 107) The data are read out via a PC with PACTware/DTM or the control system with EDD. PBD-51041061 SITRANS LG260 - Operating Instructions...
This status message is always active. It cannot be deactivated by the user. Function check: The instrument is being worked on, the measured value is temporarily invalid (for example during simulation). This status message is inactive by default. SITRANS LG260 - Operating Instructions PBD-51041061...
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Disconnect operating voltage briefly munication Communication Send instrument for repair error F125 Temperature of the electronics in the Check ambient temperature Bit 7 non-specified range Impermissible Insulate electronics electronics tem- Use instrument with higher temper- perature ature range PBD-51041061 SITRANS LG260 - Operating Instructions...
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S601 Level echo in the close range not Reduce level Bit 24 available Overfilling 100 % adjustment: Increase value Check mounting socket Remove possible interfering signals in the close range Use coaxial probe SITRANS LG260 - Operating Instructions PBD-51041061...
The operator of the system is responsible for taking suitable meas- tion occurs ures to rectify faults. The first measures are: Fault rectification • Evaluation of fault messages • Checking the output signal • Treatment of measurement errors PBD-51041061 SITRANS LG260 - Operating Instructions...
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Amplitude or position of a false signal has Determine the reason for the changed false changed (e.g. condensation, buildup); false signals, carry out false signal suppression, signal suppression no longer matches ac- e.g. condensation time tual conditions SITRANS LG260 - Operating Instructions PBD-51041061...
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Carry out false signal suppression or in- jumps sporadically the antenna crease false signal suppression in the close towards 100 % dur- range by editing ing emptying With bulk solids use radar sensor with purg- ing air connection or flexible antenna cover time PBD-51041061 SITRANS LG260 - Operating Instructions...
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Min./max. adjustment not correct Adapt min./max. adjustment too low or too high level Incorrect linearisation curve Adapt linearisation curve Running time error (small measurement Repeat setup error close to 100 %/serious error close to 0 %) time SITRANS LG260 - Operating Instructions PBD-51041061...
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Remove contamination on the probe. Af- range during emptying ter having removed the source of the false signals, the false signal suppres- sion must be deleted. Carry out a new false signal suppression time PBD-51041061 SITRANS LG260 - Operating Instructions...
To loosen the rod or cable you need a fork spanner with spanner width 13. 1. Loosen the rod or cable by applying a fork spanner to the flat surfaces (SW 13), provide counterforce with another fork spanner (SW 13) 2. Unscrew the loosened rod or cable manually. 3. Place the enclosed new double washer onto the thread. SITRANS LG260 - Operating Instructions PBD-51041061...
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4. Cable: Pull the cable out of the gravity weight 5. Shorten the cable/rod with a cut-off wheel or metal saw at the marking. Take note of the specifications in the following illustration when shortening the cable. 6. Cable: shift the cable into the gravity weight (according to the drawing) Plastic coated cable: remove coating according drawing to 70 mm (2.76 in). PBD-51041061 SITRANS LG260 - Operating Instructions...
Current sensor software as file You can find the actual sensor software as well as detailed infor- mation of the procedure in the download area on our homepage: www.siemens.com/sitranslg. You can find information about the installation in the download file. Caution: Instruments with approvals can be bound to certain software versions. Therefore make sure that the approval is still effective after a software update is carried out. You can find detailed information in the download area on our home- page: www.siemens.com/sitranslg. SITRANS LG260 - Operating Instructions PBD-51041061...
How to proceed if a repair is necessary If it is necessary to repair the instrument, please contact Siemens. You find the locations on "www.siemens.com/processautomation". PBD-51041061 SITRANS LG260 - Operating Instructions...
Pass the instrument directly on to a specialised recycling company and do not use the municipal collecting points. If you have no way to dispose of the old instrument properly, please contact us concerning return and disposal. SITRANS LG260 - Operating Instructions PBD-51041061...
Ʋ Blind plug, cable gland Second Line of Defense (optional) Ʋ Supporting material 316L Ʋ Glass potting Borosilicate glass GPC 540 Ʋ Contacts Alloy C22 (2.4602) Only with Ex-d version. Only with Ex-d version. PBD-51041061 SITRANS LG260 - Operating Instructions...
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Ʋ Cable: ø 6 mm (0.236 in) 30 KN (6744 lbf) Ʋ Cable: ø 11 mm (0.433 in), PA coated 30 KN (6744 lbf) The tensile force of solids are subject of a normal fluctuation range. For this reason, the determined diagram value of the following diagrams must be multiplied with safety factor 2. SITRANS LG260 - Operating Instructions PBD-51041061...
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Tensile force in kN (the determined value must be multiplied with safety factor 2) Cable length in m Vessel diameter 12 m (39.37 ft) Vessel diameter 9 m (29.53 ft) Vessel diameter 6 m (19.69 ft) Vessel diameter 3 m (9.843 ft) PBD-51041061 SITRANS LG260 - Operating Instructions...
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Vessel diameter 6 m (19.69 ft) Vessel diameter 3 m (9.843 ft) Thread in gravity weight, e.g. for eye-bolt M 12 (cable version) Torque for exchangeable cable or rod probe (in the process fitting) Ʋ Cable: ø 4 mm (0.157 in) 8 Nm (5.9 lbf ft) SITRANS LG260 - Operating Instructions PBD-51041061...
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Ʋ Reflector metallic, ø 1 m Ʋ Medium Bulk solids - cereals, flour, cement (dielectric con- stant ~2.0) Ʋ Mounting Probe end does not touch the vessel bottom Sensor parameter adjustment No gating out of false signals carried out PBD-51041061 SITRANS LG260 - Operating Instructions...
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Fig. 27: Measuring ranges - SITRANS LG260 Reference plane Probe length L Measuring range Upper dead zone (see following diagrams - grey section) Lower dead zone (see following diagrams - grey section) Typical deviation See following diagrams Depending on the mounting conditions, deviations can occur which can be rectified by adapting the adjustment or changing the measured value offset in the DTM service mode. SITRANS LG260 - Operating Instructions...
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0,07 m (5.906 (11.811 " ") (2.756 ") 0,1 m (3.94 ") Fig. 28: Deviation SITRANS LG260 in rod version Dead zone (no measurement possible in this area) Probe length 20 mm (0.787 " 15 mm (0.591 " 2 mm (0.079...
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Vessel pressure relating to the flange see supplementary instructions manual "Flanges ac- nominal pressure stage cording to DIN-EN-ASME-JIS" Time span after a sudden measuring distance change by max. 0.5 m in liquid applications, max 2 m with bulk solids applications, until the output signal has taken for the first time 90 % of the final value (IEC 61298-2). SITRANS LG260 - Operating Instructions PBD-51041061...
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-40°C / -40°F Fig. 30: Ambient temperature - process temperature, standard version Ambient temperature Process temperature (depending on the seal material) Aluminium housing Plastic housing Stainless steel housing, precision casting Stainless steel housing, electropolished PBD-51041061 SITRANS LG260 - Operating Instructions...
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Via the respective output signal Voltage supply Operating voltage U 9 … 32 V DC Operating voltage U with lighting 13.5 … 32 V DC switched on Power supply by/max. number of sensors Ʋ Fieldbus max. 32 PBD-51041061 SITRANS LG260 - Operating Instructions...
Revisions Data DD-Revision Rev_01 CFF-File 030101.cff Device Revision Cff-Revision xx xx 01 Device software revision > 1.3.0 ITK (Interoperability Test Kit) Number 6.2.0 Galvanic separation between electronics and metal housing parts When used with fulfilled housing protection IEC 61010-1 SITRANS LG260 - Operating Instructions PBD-51041061...
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Number of VCRs (Virtual Communication Re- lationships) Function blocks Transducer Block (TB) The Transducer Block "Analog Input (AI)" takes the original measured value (Secondary Value 2), carries out the min./max. adjustment (Secondary Value 1), carries out a linearization (Primary Value) and makes the values on its output available for further function blocks. PBD-51041061 SITRANS LG260 - Operating Instructions...
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Fig. 34: Schematic presentation function block Discret Input (DI) Function block PID Control The function block "PID Control " is a key component for various tasks in the process automation and is used universally. PID blocks can be cascaded if this is necessary or requested due to differ- ent time constants with the primary and secondary process measurement. SITRANS LG260 - Operating Instructions PBD-51041061...
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Optionally the function axis can be exchanged in channel 2 so that the block can be also used in a reverse control loop. PBD-51041061 SITRANS LG260 - Operating Instructions...
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Typical input signals are AI blocks. Selection possibilities are maximum, minimum, mean value, average value and first useful signal. Through parameter combination, the block can be used as rotary switch or as preselection switch for the first useful value. Switch information can be received by other input blocks or the user. Mean value selection is also supported. SITRANS LG260 - Operating Instructions PBD-51041061...
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Fourth order polynomial • Simple HTG compensated level • Fourth order Polynomial Based on PV Fig. 40: Schematic presentation function block Arithmetic Parameter list The following table gives you an overview of the parameters used. PBD-51041061 SITRANS LG260 - Operating Instructions...
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FIRMWARE_VERSION_MAIN Software versions major, minor, revision and build PHYSICAL_VALUES Distance, distance unit, distance status, level and status DEVICE_UNITS Distance and temperature units of the instrument APPLICATION_CONFIG Medium type, media, application type, vessel bottom, vessel height LINEARIZATION_TYPE_SEL Type of linearization SITRANS LG260 - Operating Instructions PBD-51041061...
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SIL_MODE EDENVELOPE_CURVE_FIL- Parameters of envelope curve filter, activation of smooth raw value curve EDDETECTION_CURVE_FIL- Parameters of the detection filter, offset threshold value curve EDECHO_COMBINATION Parameters for echo combination, function combine echoes, amplitude difference of combined echoes, position difference of combined echoes LIN_TABLE_A … LIN_ 32 couples of percentage and lin. percentage values TABLE_Q ELECTRONICS_INFORMA- Electronics version TION PBD-51041061 SITRANS LG260 - Operating Instructions...
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Width focusing range, time for opening the focusing range, min. measurement reliability in and outside the focusing range NOISE_DETECTION_INFO Increase of the system noise NOISE_DETECTION_CON- System noise treatment ECHO_MEM_SAVE_CURVE_ TYPE ECHO_MEM_STATE Busy, curve type, error code SITRANS LG260 - Operating Instructions PBD-51041061...
½ NPT Fig. 42: Housing versions with protection rating IP66/IP68 (0.2 bar), (with integrated display and adjustment mod- ule the housing is 9 mm/0.35 in higher) Aluminium - single chamber Aluminium - double chamber PBD-51041061 SITRANS LG260 - Operating Instructions...
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Fig. 43: Housing versions with protection rating IP66/IP68 (0.2 bar), (with integrated display and adjustment mod- ule the housing is 9 mm/0.35 in higher) Stainless steel single chamber (electropolished) Stainless steel single chamber (precision casting) Stainless steel double chamber housing (precision casting) SITRANS LG260 - Operating Instructions PBD-51041061...
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(0.16") ø 20 mm (0.79") Fig. 44: SITRANS LG260, cable ø 4 mm (0.157 in), ø 6 mm (0.236 in) threaded version with gravity weight (all gravity weights with thread M12 for eye-bolt) Sensor length, see chapter "Technical data" Cable ø 4 mm (0.157 in) Cable ø...
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(0.43") ø 30 mm (1.18") Fig. 45: SITRANS LG260, cable ø 6 mm (0.236 in), ø 11 mm (0.433 in) threaded version with gravity weight (all gravity weights with thread M12 for eye-bolt) Sensor length, see chapter "Technical data" Cable ø 6 mm (0.236 in) Cable ø...
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SITRANS LG260, rod version ø 16 mm (0.63 in) SW 55 mm (2.17") G1½ ø 16 mm (0.63") Fig. 46: SITRANS LG260, rod ø 16 mm (0.63 in), threaded version Sensor length, see chapter "Technical data" Joint - rod PBD-51041061 SITRANS LG260 - Operating Instructions...
11.4 Trademark All the brands as well as trade and company names used are property of their lawful proprietor/ originator. SITRANS LG260 - Operating Instructions PBD-51041061...