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Summary of Contents for Igema SMLC2
- Page 1 Low level limiter SMLC2 for use with the level probe: EL030 / EL030-M / EL030-B or EL19-2 or the multirodprobes EL963 and MS015A/B SIL 3 Edition 06/2022 D-08-B-51037-EN-03 INSTALLATION AND OPERATING INSTRUCTIONS...
- Page 2 Product philosophy Thank you for placing your trust in IGEMA and deciding in favour of one of our high-quality products. For more than 100 years, measuring and control systems have been developed, produced and sold worldwide under the IGEMA brand name.
- Page 3 Table of contents Important safety instructions ................5 1.1 Symbols used in these instructions ..............5 1.2 Intended use of the device ................6 1.3 Safety at work ....................7 1.4 Safety instructions for this device ..............8 1.5 Exclusion of liability ..................8 Contents of packing ..................
- Page 4 Table of contents Configuration ....................23 Technical data ....................23 7.1 Device data - controller ................. 23 7.2 Device data - probe ..................24 7.3 SIL- characteristics ..................25 7.4 Maximum ratings of potential free contacts ........... 25 7.5 Data plate ..................... 25 Fault analysis and rectification ..............
- Page 5 Unqualified persons must not be assigned the above tasks! IGEMA GmbH accepts no liability for damage to property or personal injury caused by unqualified persons or by failure to observe these installation and operating instructions. If no sufficiently qualified person can be found, IGEMA GmbH can be commissioned with the installation/maintenance.
- Page 6 In case of doubt, contact the relevant installation manager or site manager. The correct installation position ion of the device must be observed! Before installing the IGEMA product on boilers or containers, it is essential to remove all protective covers.
- Page 7 1.3 Safety at work Before installation or carrying out maintenance work on the device, safe access must be ensured and a secure working area with sufficient lighting must be defined and marked out. Always use lifting equipment for heavy loads! Danger Before starting any work, carefully check which liquids or gases are or have been in the pipeline.
- Page 8 IGEMA GmbH Mess- und Regelsysteme will assume no liability if the above regulations, instructions and safety precautions are not observed and followed. If they are not expressly listed in the installation and operating instructions, changes to an IGEMA device are carried out at the risk of the user.
- Page 9 * The content depends on the order. 3. Use in compliance with regulations The self-monitoring low level limiter SMLC2, in conjunction with the level probes EL030 / EL030-M / EL030-B or EL19-2, EL963, MS015A or MS015B, is a level limiter, a safety...
- Page 10 4. System description 4.1 Function The SMLC2 low level limiter works in conjunction with the IGEMA EL030 / EL030-M / EL030-B, EL19-2, EL963, or MS015A/B level probes on the basis of the conductive fill level method of measurement whereby the electric conductivity of the medium is used. The conductivity of the medium is measured in µS/cm.
- Page 11 Malfunctions of the measuring cable (e.g. short circuit or cable break) will be detected, too. The power flowing via the contacts of the safety chain is limited in the SMLC2 by a 4 amp fuse protection by which sticking of the contacts is prevented.
- Page 12 5. Assembly and Installation The limiter is supplied in a plastic plug-in housing for fitting into switch cabinets. The housing is designed for quick fitting with a spring catch for the standard 35 mm carrier rail and for screw fixing on a mounting plate. If the unit is used in environments with increased exposure to vibration (e.g.
- Page 13 5.2 Installation Ensure protection class in accordance with current regulations. Caution electrical voltage Quick fitting for standard 35 mm carrier rail • Fix device on standard carrier rail by means of the quick fitting with spring catch (4). • Release fixing screws (3) and pull electronic housing (7) from base (5). •...
- Page 14 5.3.2 Assignment plan max. T M 2A SMLC2 Mains voltage: see data plate to be attached by the operator Safety chain Signalling electrical connection: shielded cable 4 x 0,75mm2 We recommend to use a flexible cable. ● Max. length of measuring cable: 100m...
- Page 15 (4 x 0,75 mm²) to the probe. • Length of connecting line max. 100 m. • Only connect shielding on the SMLC2 control unit (terminal 6). After electrical connection - with device disconnected from the mains - put hood (7) on holder (5) and tighten fastening screws (3).
- Page 16 5.4 Fitting the electrode It is essential to remove the protective tube for transport before installation! Danger If several electrodes are screwed into a flange the probe plugs (2) and the associated probes should be labelled to prevent confusion! Danger EL968 and MS015A/B: check separate Installation and Operating instruction Always depressurise the boiler /water column and allow it to cool down before installation, dismantling or servicing the probe!
- Page 17 Thus it does not need to be fixed and may not be removed by the operator. The water level limiter SMLC2 with probe EL030-M must be installed in a protective tube if the length is ≥ 800mm. Installation must be carried out by the boiler manufacturer in such a way that safe operation is guaranteed.
- Page 18 Screwing in the probe • Release screw (1) and pull off probe plug (2) • Clean and check sealing surfaces • Insert (new) sealing ring (6) • Lubricate thread (7) with heat-resistant solid lubricant (e.g. graphite). • Screw in probe and tighten, max. tightening torque Md=140 Nm.
- Page 19 5.5 Fixing elements for mounting probes The flanges, seals, screws and nuts listed in the table below are designed in accordance with DIN EN 12952 und DIN EN 12953. Flanges according to DIN Form Threaded hole Material EN1092-1 according to drilling EN1092-1 1.0460 pattern 1, 2, 3, 4, 5...
- Page 20 Screws according to DIN Quantity Dimension Material M16 x 75 M20 x 100 1.7709 100/160 M24 x 110 M20 x 90 1.7709 M24 x 110 100/160 2510 LM27 x 145 Ck 35 Nuts according to DIN Quantity Dimension Material EN 24032 1.7258 100/160 EN 24032...
- Page 21 5.6 Mounting in the water column If shut-off valves are mounted between the process connections of the water column and the boiler supports, an electric locking system (end switch) has to be installed. A drain valve should be mounted to the water column. Caution Illustration of water column (PS 50 –...
- Page 22 Construction dimensions Construction dimensions min. mm d 60,3 114,3 Process connection M1 DIN sealing form Form B1 DIN EN 1092-1 Type 11 Form B2 Process connection M2 DIN sealing form Form B1 DIN EN 1092-1 Type 11 Form B2 On request ASME-compliant flanges, weld-on ends or DIN or ASME-compliant socket welding on the process connection M2 are also an option.
- Page 23 Caution Setting the switch-off time: • Open SMLC2. To do this, release the fixing screws (3) and pull the hood (7) off the holder (5) –with the device disconnected from the power supply (see chap. 5.1) • After unlatching the back plate, pull the circiut board out of the hood (7). At the circuit board you find a two-pole DIP switch on the right side below the LEDs (see diagram).
- Page 24 Applied Standards: DIN EN 12952-11: 2007, DIN EN 12953- 9: 2007, DIN EN 61508-1/ -2/ -3: 2010, DIN EN 61326-1: 2006 DIN EN 61010-1 Supply voltage: 230V AC (-15% +10%), 50/60Hz* Power consumption: Measuring cable (data exchange): shielded connection cable to probe 4x0,75 mm² Electrical connection: 12 pole screw terminal strip Protection class:...
- Page 25 Electrode EL030 / EL030-M / EL030-B EL19-2 Insulator PTFE Ceramic Plug Polyamide (glass fibre reinforced) Sealing ring Soft iron Probe housing Stainless steel Probe rod Stainless steel Probe extension Stainless steel The lifetime of the probe depends on the operating conditions and the condition of the boiler water.
- Page 26 8. Fault analysis and rectification The device terminal strip is live during operation!! Before working on the device disconnect it from the mains!! Danger flashing green LED (1Hz): Uv < 180V check power supply low voltage permanent red LED low water (LLW) check feed water flashing red LED for insulation electrode...
- Page 27 This high-quality IGEMA product was designed, manufactured and tested with the application of the QM System guidelines in accordance with DIN EN ISO 9001:2015. If the device supplied indicates transport damage or gives cause for complaint in spite of our final quality control, please contact our SERVICE department on...
- Page 28 Declaration of Conformity...
- Page 29 10. Certificates PED Type Examination:...
- Page 30 SIL 3 Certificate:...
- Page 33 IGEMA GmbH Antwerpener Str. 1 Fon.: +49 2501 92424-0 48163 Münster Fax.: +49 2501 92424-99 Deutschland info@igema.com www.igema.com...
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