Siemens SITRANS LR460 Operating Instructions Manual
Radar transmitters
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- Quick start manual (197 pages) ,
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Summary of Contents for Siemens SITRANS LR460
- Page 1 SITRANS LR460 Introduction Safety notes Radar transmitters Description Installing/mounting SITRANS L SITRANS LR460 Connection Technical specifications Compact Operating Instructions Product documentation and support 7ML5426 (SITRANS LR460) 10/2021 A5E32007360-AB...
- Page 2 Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.
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Page 3: Table Of Contents
Radio Equipment - EU Directive (RED) 2014/53/EU and UK regulation SI 2017/1206 .... 11 US installations only: Federal Communications Commission (FCC) rules ......11 Canadian Installations only: Industry Canada (IC) rules ............12 Description ............................14 SITRANS LR460 ........................14 Installing/mounting ..........................15 Mounting location ......................15 Nozzle design ........................16 Nozzle location ........................ - Page 4 Table of contents Connection ............................28 Basic safety notes ......................28 5.1.1 Safety notes ........................28 Connecting SITRANS LR460 ....................29 HART wiring ........................30 Connecting HART ....................... 31 PROFIBUS wiring ........................ 32 Connecting PROFIBUS PA ....................34 Product Nameplate ......................35 Instructions specific to hazardous area installations ............
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Page 5: Introduction
The instructions are aimed at persons mechanically installing the device, connecting it electronically, configuring the parameters and commissioning it, as well as service and maintenance engineers. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 6: Fw Revision History
Jun. 29, 2007 New mA/HART hardware. 1.03.00-00 1.03.01-00 Jan. 12, 2007 Initial release. Designated use Use the device in accordance with the information on the nameplate and in the Technical specifications (Page 38). SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 7: Security Information
Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to... -
Page 8: Notes On Warranty
The sales contract contains all obligations on the part of Siemens as well as the complete and solely applicable warranty conditions. Any statements regarding device versions described in the manual do not create new warranties or modify the existing warranty. -
Page 9: Safety Notes
• National Electrical Code (NEC - NFPA 70) (USA) • Canadian Electrical Code (CEC Part I) (Canada) Further provisions for hazardous area applications are for example: • IEC 60079-14 (international) • EN 60079-14 (EU and UK) SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 10: Conformity With European Directives
The Restriction of the Use of Certain Hazard- SI 2012/3032 ous Substances in Electrical and Electronic Equipment Regulations 2012 The applicable regulations can be found in the UKCA declaration of conformity of the specific device. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 11: Radio Equipment - Eu Directive (Red) 2014/53/Eu And Uk Regulation Si 2017/1206
Radio Equipment - EU Directive (RED) 2014/53/EU and UK regulation SI 2017/1206 Hereby, Siemens declares that the SITRANS LR460 is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU. The LR460 complies with EN 302 372 for use in closed storage vessels, when installed according to the installation requirements of EN 302 372, and may be used in all EU countries. -
Page 12: Canadian Installations Only: Industry Canada (Ic) Rules
If you need additional information not covered by these instructions, contact your local Siemens office or company representative. Note Operation under special ambient conditions... - Page 13 • Do not use devices that have been operated outside the conditions specified for hazardous areas. If you have used the device outside the conditions for hazardous areas, make all Ex markings unrecognizable on the nameplate. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB...
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Page 14: Description
The high frequency signal creates a narrow emission cone, which makes the LR460 quite insensitive to vessel interferences. SITRANS LR460 is available with an optional air purge connection for cleaning the interior of the antenna. Programming SITRANS LR460 carries out its level measurement function according to the set of built-in parameter tables. -
Page 15: Installing/Mounting
• Provide an environment suitable to the housing rating and materials of construction. • Provide a sun shield if the device is mounted in direct sunlight. ① ambient temperature max. +65 °C (+149 °F) ② flange temperature ③ process temperature max. +200 °C (+392 °F) SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 16: Nozzle Design
• Nozzle must allow adequate clearance to allow positioning if LR460 has to be at an angle so that emission cone perpendicular to material surface. ① Upper wave guide ② Factory lock screw ③ Min clearance: 10 mm (0.4") SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 17: Nozzle Location
• Align the antenna so that the radar cone is perpendicular to the surface of the monitored material, if possible. See Easy Aimer installation (Page 19). • To compensate for vessels with obstructions, see also Installation in vessel with obstructions (Page 18). SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 18: Installation In Vessel With Obstructions
Polarization Reference Point either faces towards the obstruction, or faces away from the obstruction (at 180 degrees). Tighten ball locking bolts when unit is in desired position. ① Polarization reference point ② Easy Aimer ball locking bolts SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 19: Easy Aimer Installation
1. Holding the electronics enclosure firmly, loosen the Easy Aimer ball locking bolts and gently reposition the enclosure. 2. Direct SITRANS LR460 so the horn antenna is pointed at an angle perpendicular to the material surface, if possible. (As a guide, aim the beam at a point approximately 2/3 of the way across the tank diameter.) - Page 20 Installing/mounting 4.5 Easy Aimer installation ① Easy Aimer SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB...
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Page 21: Air Purging System (Optional)
• Some dust particles are highly abrasive and can be drawn into the inside of the horn during purge cleaning, damaging the internal PTFE emitter of the antenna. A replacement kit is available from your local Siemens representative. • It is the customer’s responsibility to ensure that any vacuum or pressure in the measured vessel is maintained, considering the hole that passes through the process connection and SITRANS LR460 antenna system. - Page 22 Installing/mounting 4.6 Air purging system (optional) ① Purged process connection with factory installed 1/8" NPT plug SCFM (standard cubic feet/minute) referenced to 14.7 psia, 68°F and 36% relative humidity (RH). SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB...
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Page 23: Universal Slotted Flange (For Use With Air Purging Option Only)
① Number of slotted bolt holes ② Bolt hole circle max. diameter ③ Bolt hole circle min. diameter ④ Flange O.D. ⑤ Thickness ⑥ Section "A-A" Slotted flange dimensions (see above) SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 24: Optional Dust Cap
• It is particularly useful for applications in areas of high humidity, or with bulk solids with a high moisture content. • Two sizes are available, to fit the standard 3" and 4" horns. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... - Page 25 3. Hand tighten the adjustable clamp supplied to secure the cap. 4. Use a screwdriver or nut driver to tighten the clamp screw until the clamp provides an air- tight seal. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB...
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Page 26: Incorrect Disassembly
• If the device contains hazardous media, it must be emptied prior to disassembly. Make sure that no environmentally hazardous media are released. • Secure the remaining connections so that no damage can result if the process is started unintentionally. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 27: Installation Location Requirements
• Before installing ensure there is no visible damage to the device. • Make sure that process connectors are clean, and suitable gaskets and glands are used. • Mount the device using suitable tools. Refer to the information in Technical specifications (Page 38). SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 28: Connection
Risk of explosion in hazardous areas as result of incorrect power supply. • Connect the device in accordance with the specified power supply and signal circuits. The relevant specifications can be found in the certificates, in Technical specifications (Page 38) or on the nameplate. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 29: Connecting Sitrans Lr460
Connection 5.2 Connecting SITRANS LR460 Connecting SITRANS LR460 1. Release the cover lock on the enclosure with a 3 mm Allen key and unscrew the cover. (Use a screwdriver for extra leverage, if required.) 2. Loosen the cable gland and push the power cable through until it reaches the terminal strip. -
Page 30: Hart Wiring
Connection 5.3 HART wiring HART wiring Note Power LR460 HART requires no power from the 4-20 mA loop. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 31: Connecting Hart
• Only one HART communication device should be inserted in the loop. ① PLC with mA input card ② PC/laptop with HART modem running PDM ③ HART communicator (Continued from Connecting SITRANS LR460 (Page 29)) SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 32: Profibus Wiring
To determine how many devices can be connected to a bus line, calculate the combined maximum current consumption of all the connected devices: 10.5 mA for SITRANS LR 460. Allow a current reserve for safety. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... - Page 33 PROFIBUS PA MUST be terminated at both extreme ends of the cable for it to work properly. Please refer to the PROFIBUS PA User and Installation Guidelines (order number 2.092), available from www.profibus.com (www.profibus.com). AC version DC version ① Cable clamp ② Earth terminal SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB...
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Page 34: Connecting Profibus Pa
5.6 Connecting PROFIBUS PA Connecting PROFIBUS PA Typical PLC/mA configuration with PROFIBUS PA (Continued from Connecting SITRANS LR460 (Page 29)) 1. Connect the earth conductor of the power supply to the earth terminal on the metal bracket inside the enclosure. Adjust the cable length so that the earth conductor would be last to disconnect if cable is pulled. -
Page 35: Product Nameplate
Use a cable with a cross-section of 2.5 mm or greater. ① Earth (ground) terminal ② Cable glands Product Nameplate Note A representative 'sample' of the configurable nameplate may have to generated for demonstration purposes. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 36: Instructions Specific To Hazardous Area Installations
9. It is the user’s responsibility to ensure that a manual override is possible in order to shut down the equipment, and that protective systems are incorporated within automatic processes which deviate from the intended operating conditions, provided that this does not compromise safety. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 37: Special Conditions For Safe Use
• The supply to the equipment shall be rated for a propective short circuit current of not more than 10KA and shall be protected by a suitably-rated fuse. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 38: Technical Specifications
Beam angle 3" horn: 11° at –3 dB boundary 4" horn: 8° at –3 dB boundary Memory non-volatile EEPROM no battery required Referenced from flange face. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 39: Interface
Outputs electrically isolated from the power supply and from each other Display two lines of 16 characters each, configurable for the following displays: level, amplitude, digital output, temperature, validity, signal-to-noise ratio, output current, distance HART® is a registered trademark of HART Communication Foundation. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 40: Mechanical
1/8" NPT fitting Use only approved, suitable sized hubs for watertight applications. Programmer (infrared keypad) Siemens infrared IS (Intrinsically Safe) handheld programmer for hazardous and all other locations (battery is non-replaceable) Approvals ATEX II 1 GD, Ex ia op is IIC T4 Ga, Ex ia op is IIIC T135°C Da UKEX II 1 GD, Ex ia op is IIC T4 Ga, Ex ia op is IIIC T135°C Da... -
Page 41: Environmental
Permitted ambient -40 to +65 °C (-40 to +149 °F) (non-hazardous version) temperature LCD: -10 to +55 °C (+14 to +131 °F) Observe the temperature classes in hazardous areas! Operating temperature of LCD display. SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 42: Process
INMETRO Ex ta IIIC T85°C Da IP67 FM/CSA Class II, Div. 1, Groups E, F and G, Class III General , FM, CE, UKCA, RCM Radio FCC, Industry Canada, European Radio (RED), UK Radio, RCM SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB... -
Page 43: Product Documentation And Support
Entering a serial number 1. Open the PIA Life Cycle Portal (https://www.pia-portal.automation.siemens.com). 2. Select the desired language. 3. Enter the serial number of your device. The product documentation relevant for your device is displayed and can be downloaded. -
Page 44: Technical Support
In addition to our technical support, Siemens offers comprehensive online services at Service & Support (http://www.siemens.com/automation/service&support). Contact If you have further questions about the device, contact your local Siemens representative at Personal Contact (http://www.automation.siemens.com/partner). To find the contact for your product, go to "all products and branches" and select "Products &... -
Page 45: Index
Hazardous area installations Warranty, 8 wiring requirements, 36 Wiring Hotline, (Refer to Support request) HART, 30 PROFIBUS PA, 32 Installation hazardous area requirements, 36 requirements, 15 Laws and directives Disassembly, 9 Personel, 9 SITRANS LR460 Compact Operating Instructions, 10/2021, A5E32007360-AB...