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Siemens SITRANS LG250 Operating Instructions Manual
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Siemens SITRANS LG250 Operating Instructions Manual

Siemens SITRANS LG250 Operating Instructions Manual

Guided wave radar, foundation fieldbus coax probe
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Guided Wave Radar
SITRANS LG250
Foundation Fieldbus
Coax probe
Operating Instructions • 03/2014

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Summary of Contents for Siemens SITRANS LG250

  • Page 1 Guided Wave Radar SITRANS LG250 Foundation Fieldbus Coax probe Operating Instructions • 03/2014...
  • Page 2 SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 3: Table Of Contents

    Saving the parameter adjustment data ................50 Set up with other systems DD adjustment programs ....................51 Field Communicator 375, 475 ..................51 Diagnostics and service Maintenance ........................52 Diagnosis memory ......................52 Status messages ......................53 PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 4 11.2 Supplementary information Foundation Fieldbus ............71 11.3 Dimensions ........................82 Safety instructions for Ex areas Please note the Ex-specific safety information for installation and op- eration in Ex areas. These safety instructions are part of the operating instructions manual and come with the Ex-approved instruments. Editing status: 2014-03-17 SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 5: About This Document

    This arrow indicates a single action. 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-51041056 SITRANS LG250 - Operating Instructions...

  • Page 6: For Your Safety

    During work on and with the device the required personal protective equipment must always be worn. Appropriate use SITRANS LG250 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.

  • Page 7: Namur Recommendations

    That is why we have introduced an environment management system with the goal of continuously improving company environmental pro- tection. The environment management system is certified according to DIN EN ISO 14001. Please help us fulfill this obligation by observing the environmental instructions in this manual: • Chapter "Packaging, transport and storage" • Chapter "Disposal" PBD-51041056 SITRANS LG250 - Operating Instructions...

  • Page 8: Product Description

    • Standard electronics: Type FX80FF.- Scope of delivery The scope of delivery encompasses: • Sensor • Documentation – this operating instructions manual – Test certificate measuring accuracy (optional) – Operating instructions manual "Display and adjustment mod- ule" (optional) SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 9: Principle Of Operation

    – if necessary, further certificates Principle of operation Application area The SITRANS LG250 is a level sensor with coax probe for continuous level or interface measurement, suitable for applications in liquids. Functional principle - High frequency microwave pulses are guided along a steel cable or level measurement a rod.
  • Page 10 The dielectric constant must be 10 higher than the dielectric constant of the upper medium, preferably electrically conductive. Example: upper medium dielectric constant 2, lower medium at least dielectric constant 12. Gas phase (L3) • Air or gas mixture SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 11: Packaging, Transport And Storage

    You can find additional information in the operating instructions manual "LG Local Display Interface" (Document-ID 43838). External display and The LG Remote Interface is an external display and adjustment unit adjustment unit for sensors with single chamber housing and Ex-d double chamber housing. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 12 M12 x 1 plug. You can find further information in the supplementary instructions "Adapter DISADAPT". Electronics module The electronics module SITRANS series LG is a replacement part for TDR sensors of SITRANS series LG. There is a different version avail- able for each type of signal output. You can find further information in the operating instructions manual "Electronics module SITRANS series LG". SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 13: Mounting

    Active measuring component • Process fitting • Process seal Process conditions are particularly: • Process pressure • Process temperature • Chemical properties of the medium • Abrasion and mechanical influences You can find the specifications of the process conditions in chapter "Technical data" as well as on the type label. PBD-51041056 SITRANS LG250 - Operating Instructions...

  • Page 14: Mounting Instructions

    Fig. 4: Vessel with conical bottom 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. Fig. 5: Mounting of the sensor with inflowing medium SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 15 The prerequisite is constant temperature and pressure in the vessel. Automatic correction via the reference distance The SITRANS LG250 can be equipped optionally with a running time correction via reference distance. The probe can carry out an auto- matic running time correction with it.
  • Page 16 Fig. 6: Measuring ranges - SITRANS LG250 with steam compensation Reference plane Probe length L Measuring range Upper dead zone with steam compensation = 450 mm (17.7 in) Lower dead band Reference measurement distance to steam compensation SITRANS LG250 - Operating Instructions...

  • Page 17: Connecting To Power Supply

    The terminal block is pluggable and can be removed from the electronics. To do this, lift the terminal block with a small screwdriver and pull it out. When reinserting the terminal block, you should hear it snap in. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 18 Fig. 7: Connection steps 5 and 6 - Single chamber housing Fig. 8: Connection steps 5 and 6 - Double chamber housing 6. Insert the wire ends into the terminals according to the wiring plan SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 19: Wiring Plan, Single Chamber Housing

    Simulation switch ("1" = mode for simulation release) For external display and adjustment unit Ground terminal for connection of the cable screen Wiring plan, double chamber housing The following illustrations apply to the non-Ex as well as to the Ex-ia version. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 20 For external display and adjustment unit Ground terminal for connection of the cable screen Information: The use of an external display and adjustment unit and a display and adjustment module in parallel in the connection compartment is not supported. SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 21: Double Chamber Housing With Dis-Adapt

    Pin 3 Blue Pin 4 Black Switch-on phase After SITRANS LG250 is connected to the bus system, the instrument carries out a self-test for approx. 30 seconds. The following steps are carried out: • Internal check of the electronics •...
  • Page 22 As soon as a plausible measured value is found, it is outputted to the signal cable. The value corresponds to the actual level as well as the settings already carried out, e.g. factory settings. SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 23: Set Up With The Display And Adjustment Module

    The display and adjustment module is powered by the sensor, an ad- ditional connection is not necessary. Fig. 14: Installing the display and adjustment module in the electronics compart- ment of the single chamber housing PBD-51041056 SITRANS LG250 - Operating Instructions...

  • Page 24: Adjustment System

    Adjustment system Fig. 16: Display and adjustment elements LC display Adjustment keys • Key functions [OK] key: – Move to the menu overview SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 25: Parameter Adjustment - Quick Setup

    [OK] will not be saved. Switch-on phase After switching on, the SITRANS LG250 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: •...
  • Page 26 In this menu item, you can enter the max. adjustment for the level. Enter the appropriate distance value in m (corresponding to the percentage value) for the full vessel. The distance refers to the sensor reference plane (seal surface of the process fitting). Keep in mind that the max. level must lie below the dead band. Min. adjustment In this menu item, you can enter the min. adjustment for the level. Enter the suitable distance value in m for the empty vessel (e.g. distance from the flange to the probe end) corresponding to the per- SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 27 All interfering signals in this section are detected by the sensor and stored. The instrument carries out an automatic false signal suppression as soon as the probe is uncovered. The false signal suppression is always updated. PBD-51041056 SITRANS LG250 - Operating Instructions...

  • Page 28: Parameter Adjustment - Extended Adjustment

    The procedure is described below. The following submenu points are available: The submenu points described below. Setup - Units In this menu item you select the distance unit and the temperature unit. SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 29 Setup - Application - Me- In this menu item, you can define the type of medium (product). dium, dielectric constant This menu item is only available if you have selected level measure- ment under the menu item "Application". You can choose between the following medium types: PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 30 Setup - Max. adjustment Level interface measurement this is the maximum total level. Adjust the requested percentage value with [+] and store with [OK]. Enter the appropriate distance value in m (corresponding to the percentage value) for the full vessel. The distance refers to the sensor reference plane (seal surface of the process fitting). Keep in mind that the max. level must lie below the dead band. SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 31 If you have selected "No", you can enter the adjustment for the inter- face separately. Enter the requested percentage value. For the full vessel, enter the distance value in m matching the per- centage value. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 32 Check the distance to the product surface, because if an incorrect (too large) value is entered, the existing level will be saved as a false echo. The filling level would then no longer be detectable in this area. If a false signal suppression has already been created in the sensor, the following menu window appears when selecting "False signal suppression": SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 33 For non-linear vessel forms, enter the vessel height und the socket correction. For the vessel height, you have to enter the total height of the vessel. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 34 The following adjustment functions are possible without entering the PIN: • Select menu items and show data • Read data from the sensor into the display and adjustment mod- ule. SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 35 The default setting for the displayed value 2 is the electronics tem- perature. Display - Backlight The optionally integrated background lighting can be adjusted via the adjustment menu. The function depends on the height of the supply voltage, see "Technical data". PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 36 "Setup - Application", the peak values of the interface measurement are displayed in addition to the peak values of the level measurement. In another window you can carry out a reset of the two peak values separately. SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 37 In this menu item you can simulate measured values via the current output. This allows the signal path to be tested, e.g. through down- stream indicating instruments or the input card of the control system. Select the requested simulation size and adjust the requested value. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 38 Additional settings - PIN Entering a 4-digit PIN protects the sensor data against unauthorized access and unintentional modification. In this menu item, the PIN is displayed or edited and changed. However, this menu item is only available if adjustment is enabled in the menu "Lock/Release setup/ adjustment". SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 39 Length of the probe Ex factory Type of medium Liquid Application Level in the vessel Medium, dielectric constant Water-based, > 10 Superimposed gas phase Dielectric constant, upper medium (TS) Tube inner diameter 200 mm Max. adjustment - Level 100 % PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 40 Device memory - Measured value memory - Re- 3 min. cording in time interval Device memory - Measured value memory - Re- 15 % cording with measured value difference Device memory - Measured value memory - Start Not active with measured value SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 41 TAG-no. this sensor had. Additional adjustments - In this menu item you can select the type and size of your probe from Probe type a list of all possible probes. This is necessary to adapt the electronics optimally to the probe. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 42 PC. Info - Device ID In this menu item, the identification number of the instrument in a Foundation Fieldbus system is shown. Info - Sensor character- In this menu item, the features of the sensor such as approval, pro- istics cess fitting, seal, measuring range, electronics, housing and others are displayed. SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 43: Saving The Parameter Adjustment Data

    If it is necessary to exchange a sensor, the display and adjustment module is inserted into the replacement instrument and the data are likewise written into the sensor via the menu item "Copy sensor data". PBD-51041056 SITRANS LG250 - Operating Instructions...

  • Page 44: Setup With Pactware

    DTM. Furthermore, not all described functions are included in older firmware versions. You can download the latest instrument software from our homepage. 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 LG250 - Operating Instructions PBD-51041056...

  • Page 45: Set Up With The Quick Setup

    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-51041056 SITRANS LG250 - Operating Instructions...
  • Page 46 Extended adjustment Maintenance Quick setup With quick setup you can carry out the parameter adjustment of SITRANS LG250 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.
  • Page 47 Measurement loop name Here you can enter a suitable measurement loop name for your SITRANS LG250. You can enter a name with max. 19 characters. You can use capital and small letters as well as numbers. The following special characters are also possible: + - . : , ( ) / < >...
  • Page 48 The entered value refers to the distance from the sealing surface of the process fitting (sensor reference plane) to the total level or interface. Step 4 Linearization is required if the measured value should be outputted Linearization in proportion to the volume and not the level. The linearization acts SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 49 This procedure can last several minutes. Create instrument documentation? This function is used to print or create a PDF file of the current param- eter adjustment. To read the PDF file, you need a suitable program (for example Acrobat Reader). To print or create the PDF file, all data are downloaded from the device. For this function, the full version of the DTM Collection is required. This procedure can last several minutes. PBD-51041056 SITRANS LG250 - Operating Instructions...

  • Page 50: Saving The Parameter Adjustment Data

    PIN is entered again. Saving the parameter adjustment data We recommend documenting or saving the parameter adjustment data via PACTware. That way the data are available for multiple use or service purposes. SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 51: Set Up With Other Systems

    This software is updated via the Internet and new EDDs are automatically taken over into the device catalogue of this software after they are released by the manufacturer. They can then be transferred to a Field Communicator. PBD-51041056 SITRANS LG250 - Operating Instructions...

  • Page 52: Diagnostics And Service

    Echo curve of the setup: This is used as reference echo curve for the measurement conditions during setup. Changes in the measure- ment conditions during operation or buildup on the sensor can thus be recognized. The echo curve of the setup is stored via: • PC with PACTware/DTM • Control system with EDD SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 53: Status Messages

    PACTware/DTM or EDD. Out of specification: The measured value is unstable because the instrument specification is exceeded (e.g. electronics temperature). This status message is inactive by default. It can be activated by the user via PACTware/DTM or EDD. Maintenance: Due to external influences, the instrument function is limited. The measurement is affected, but the measured value is PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 54 3 min. F113 – Error in the internal – Disconnect operating Bit 7 instrument communi- voltage briefly Communi- cation – Send instrument for cation error repair SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 55 – Wait for the automatic end Simulation ac- after 60 mins. tive Out of specification The following table shows the error codes and text messages in the status message "Out of specification" and provides information on causes as well as corrective measures. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 56 – Measurement certainty is – Check installation and too low for a reliable meas- process conditions Reliability too urement – Clean or exchange process – Process component or component or probe probe contaminated or defective SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 57: Rectify Faults

    There are two measurement errors: • Constant level • Filling • Emptying The images in column "Error pattern" show the real level with a bro- ken line and the level displayed by the sensor as a continuous line. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 58 4. Measured value re- – Turbulence on the product – Check parameters, change if mains momentarily surface, quick filling necessary, e.g. in dosing ves- unchanged during fill- sel, reactor ing and then jumps to time the correct level SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 59: Exchanging The Electronics Module

    In both cases, the serial number of the sensor is needed. The serial numbers are stated on the type label of the instrument, on the inside of the housing as well as on the delivery note. PBD-51041056 SITRANS LG250 - Operating Instructions...

  • Page 60: Software Update

    Instruments with approvals can be bound to certain software ver- sions. Therefore make sure that the approval remains effective with a software update. You can find detailed information in the download area on our home- page: www.siemens.com/sitranslg. How to proceed if a repair is needed If it is necessary to repair the instrument, please contact Sie- mens Milltronics Process Instruments. You find the locations on "www.siemens.com/sitranslg". SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 61: Dismounting

    Pass the instrument directly on to a spe- cialised recycling company and do not use the municipal collecting points. These may be used only for privately used products according to the WEEE directive. PBD-51041056 SITRANS LG250 - Operating Instructions...

  • Page 62: Supplement

    Ʋ Glass potting Borosilicate glass GPC 540 Ʋ Contacts Alloy C22 Ʋ Helium leak rate < 10 mbar l/s Ʋ Pressure resistance See process pressure of the sensor Not suitable for hot steam applications SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 63 Ʋ Tube: ø 42.2 mm (1.661 in) 300 Nm (221 lbf ft) Torque for NPT cable glands and Conduit tubes Ʋ Plastic housing max. 10 Nm (7.376 lbf ft) Ʋ Aluminium/Stainless steel housing max. 50 Nm (36.88 lbf ft) Input variable Measured variable Level of liquids Min. dielectric constant of the medium ε ≥ 1.4 PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 64 Fig. 31: Measuring ranges - SITRANS LG250 Reference plane Probe length L Measuring range (default setting refers to the measuring range in water) Upper dead band (see diagrams under Accuracy - grey section) Lower dead band (see diagrams under Accuracy - grey section)
  • Page 65 0,15 m (5.906 " (1.969 ") Fig. 32: Deviation SITRANS LG250 in coax version in water Dead band - no measurement possible in this area Probe length With interface measurement = 2.0 Depending on the installation conditions, there can be deviations which can be rectified with an adaptation of the adjustment or a change of the measured value offset in the DTM service mode The dead bands can be optimizes by a false signal suppression.
  • Page 66 " (1.97 ") 0,15 m (5.906 " (3.937 ") Fig. 33: Deviation SITRANS LG250 in coax version in oil Dead band - no measurement possible in this area Probe length Repeatability ≤ ±1 mm Variables influencing measurement accuracy Temperature drift - Digital output ±3 mm/10 K relating to the max. measuring range or max. 10 mm (0.394 in)
  • Page 67 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). PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 68 Fig. 35: Ambient temperature - process temperature, version with temperature adapter Ambient temperature Process temperature (depending on the seal material) Maximum permissible temperature - standard Limited temperature range - plastic housing and stainless steel housing, electropolished SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 69 M20 x 1.5 (cable: ø 5 … 9 mm) tion cable Ʋ Cable entry ½ NPT Ʋ Blind plug M20 x 1.5; ½ NPT Connection cable Ʋ Wire cross-section 0.5 mm² (AWG 20) Ʋ Wire resistance < 0.036 Ω/m Ʋ Tensile strength < 1200 N (270 lbf) PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 70 9 … 17.5 V DC FISCO model Ʋ Ex-ia instrument - Power supply 9 … 24 V DC ENTITY model Ʋ Ex-d instrument 14 … 32 V DC Power supply by/max. number of sensors Ʋ Fieldbus max. 32 (max. 10 with Ex) SITRANS LG250 - Operating Instructions PBD-51041056...

  • Page 71: Supplementary Information Foundation Fieldbus

    Revisions Data DD-Revision Rev_01 CFF-File 010101.cff Device Revision Cff-Revision xx xx 01 Device software revision > 1.1.0 ITK (Interoperability Test Kit) Number 6.1.0 IEC 61010-1 IEC 61010-1 PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 72 Function Blocks Instantiable General Information LAS (Link Active Scheduler) Master Capable 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. SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 73 The function block "Discret Input (DI)" takes the original measured value selected by a Channel Number and makes it available to additional function blocks on its output. Fig. 39: Schematic presentation function block Discret Input (DI) PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 74 A retrograde calculation function is realised by using the linear imaging function inversely. A cascading of several Output Splitters is supported by an integrated decision table for the combinability of inputs and outputs. SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 75 Optionally the function axis can be exchanged in channel 2 so that the block can be also used in a reverse control loop. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 76 When these default values are reached, digital output signals will be outputted. The integration func- tion is carried out upwardly starting with zero and downwards with a default value. Two flow values are also available so that the net flow volume can be calculated and integrated. This can be used for calculation of volume and mass changes in the vessel or for optimisation of flow controls. SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 77 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. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 78 Flow compensation, square root • Flow compensation, approximate • BTU flow • Traditional Multiply Divide • Average • Traditional Summer • Fourth order polynomial • Simple HTG compensated level • Fourth order Polynomial Based on PV SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 79 UE_2_UNIT" FILL_HEIGHT_VALUE Filling height. The unit is defined in "FILL_HEIGHT_VALUE_ UNIT" FILL_HEIGHT_VALUE_UNIT Filling height unit CONST_VALUE Constant value SECONDARY_VALUE_1_ Secondary value 1 type TYPE SECONDARY_VALUE_2_ Secondary value 2 type TYPE FILL_HEIGHT_VALUE_Type Filling height value type DIAGNOSIS AITB Diagnosis DIAG_MASK_1 DIAG_OUT_1 PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 80 Gradient of the manual sectors, safety at the end of false echo FIGURATION2 memory and depending on the import range gating out the false signals ECP_CURVE_AVARAGING_ Averaging factor on increasing and decreasing amplitude CONFIG LEVEL_ECHO_MEASURE- Function measured value filter MENT ECHO_CURVE_STATUS PACKET_COUNT SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 81 Parameters as start and end LIMITS APPROVAL_WHG Sensor acc. to WHG DEVICE_STATE_CONFIG Function check, maintenance required, out of specification ELECTRONIC_TEMPERA- Electronics temperature TURE RESET_PEAK_ELECTRON- IC_TEMP FOCUS_RANGE_CONFIG Width focusing range, time for opening the focusing range, min. measurement reliability in and outside the focusing range PBD-51041056 SITRANS LG250 - Operating Instructions...

  • Page 82: Dimensions

    M20x1,5/ ½ NPT Fig. 46: Housing versions in protection IP 66/IP 68 (0.2 bar) - with integrated display and adjustment module the housing is 9 mm/0.35 in higher Single chamber version Double chamber version SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 83 Fig. 48: Housing versions in protection IP 66/IP 68 (0.2 bar) - with integrated display and adjustment module the housing is 9 mm/0.35 in higher Single chamber version, electropolished Single chamber version, precision casting Double chamber version, precision casting PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 84 G1½, 1½ NPT ø 21,3 mm ø 42,2 mm (0.84") (1.66") Fig. 49: SITRANS LG250, threaded version Sensor length, see chapter "Technical data" Coaxial version ø 21.3 mm (0.839 in) Coaxial version ø 42.2 mm (1.661 in) SITRANS LG250 - Operating Instructions...
  • Page 85 11.4 Trademark All the brands as well as trade and company names used are property of their lawful proprietor/ originator. PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 86 Quick setup 26 Factory calibration date 42 False signal suppression 32 Read out info 42 Fault rectification 57 Repair 60 FF parameter 79 Replacement parts Functional principle 9 – Electronics module 12 Function blocks Reset 39 – Analog Input (AI) 73 SITRANS LG250 - Operating Instructions PBD-51041056...
  • Page 87 Sensor characteristics 42 Sensor status 36 Simulation 37 Special parameters 42 Status messages - NAMUR NE 107 53 Type label 8 Type of medium 29 Units 28 PBD-51041056 SITRANS LG250 - Operating Instructions...
  • Page 88 For more information www.siemens.com/level www.siemens.com/weighing Siemens AG Subject to change without prior notice Industry sector PBD-51041056 Rev. 1.0 1954 Technology Drive P.O. Box 4225 © Siemens AG 2014 Peterborough. ON Canada K9J7B1 PBD-51041056 email: techpubs.smpi@siemens.com Printed in Canada www.siemens.com/processautomation...

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