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MEC_Magnetic_level_switches_Riels
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MAGNETIC LEVEL SWITCH Magnetic Level Switches Magnetic activated level switches for controlling liquid levels in most industrial applications. When they have been installed at the point of operation, they work as on /off switches and are used for full automatic management of tanks (including pressurised ones) allowing operations such as starting /stopping of pumps, opening /closing of solenoid valves and activation of alarm systems. One or more instruments can be used, depending on the number of operation points necessary. The level switches can be equipped with electrical contacts, reed or micro switches along with various forms of protective housings to suit most environmental and safety conditions. MEC type A with round flange and weather-proof housing This product fully complies with the requirements of the European Directive ATEX 94 / 9 / EC, PED 97 / 23 / EC. RINA and M.M.I approved. Tutti i dati ed i contenuti di questa scheda sono di proprietà esclusiva di Riels Instruments Standard type for general purpose, used in most industrial applications. Horizontal mounting. One operation point. In the picture, the 100% stainless steel versions suitable for low temperatures, for installation in high saline concentration environments and for use in the food industry. Type with differential range, adjustable in one direction, only 0 - 40°. Can be used as a start/stop with a single instrument. Vertical mounting. The differential increases depending on the length of the stem and there are 4 regulation points, every 15°. Type suitable for controlling liquid with specific gravity ≥ 0.5 kg/l. Horizontal mounting. Float with counterweight. One operation point. Specific type for high vibration with reed switch contact. Frequencies 5÷100 Hz. Horizontal mounting. One operation point. Type with cooling extension, to be used in applications with temperatures from 150°C to 350°C. It can also be assembled in types D, DV, L, S. Horizontal or vertical mounting. One operation point. Type equipped with protection bellow to avoid any deposits or inclusions present in the process liquid, eliminating risk of blockage. It can also be mounted on types D, DV, L and S. Horizontal mounting. One operation point. Stem length depending upon application. Type indicated for sunken or difficult to access tanks (high or low level). Vertical mounting on pole in open tanks or in tanks with manhole. Attention must be paid to the connection rating: float is 120 mm. One operation point, with field adjustable start /stop function. Stem length depending upon application. Type with differential range, adjustable ±40° in two directions. Can be used as a tart/stop with a single instrument. Horizontal mounting. The differential increases depending on the length of the stem and there are 7 regulation points, every 15°

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Type equipped with a device for field verification (operation checking). Mostly used in the naval industry. Can also be made in types L and S. Horizontal and vertical mounting. One operation point. Pneumatic type, suitable in applications where electricity is not allowed. Stainless steel body with three ways valve. Horizontal or vertical mounting. One operation point. MEC L Type recommended in applications containing foam, inclusions and viscous fluids, where conditions require that the fulcrum point is not in touch with the process liquid. Vertical mounting. One operation point. Stem...

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Float diameters Note: the size of the float is always subject to fluid specific gravity Design conditions TMA - Maximum allowable temperature Steel with cooling extension__-20 +350°C PMA - Maximum allowable pressure Steel - Standard flange < 16 bar Steel - flange sized according to rating__< 100 bar Fluid specific gravity All models except model CP All models except model D e DV Riels Instruments Sri • +39 049 8961771 • A +39 049 717368 • www.riels.it • info@riels.it

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Mounting accessories Counterflange (on request, also in other sizes) Chamber for installation outside the tank Minimum distance between connections Tutti i dati ed i contenuti di questa scheda sono di proprietà esclusiva di Riels Instruments How to order spares The components subject to wear or damage are possible: a. float b. crew electric To apply you must provide the serial number of the instrument placed on the plate. Riels electrical equipment and housings for MEC The electrical equipment on the Riels MEC series level switches comprises a support, including two contact holders, one...

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Electrical contact characteristics Standard (A) Standard microswitch recommended for general purpose. Gold plated contacts in open air. Microswitch indicated for oxidising or corrosive environments. Goldplated contacts ermetically sealed in inert gas. Contact coating: Galvanic in gold: - standard 2 μ - special 5 μ Mechanical life > 106 Electrical life > 104 V 220 30 Load Resistive Inductive Resistive Inductive Tutti i dati ed i contenuti di questa scheda sono di proprietà esclusiva di Riels Instruments Load Resistive Inductive Resistive Inductive Weatherproof microswitch. Goldplated...

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Product selection and order placement Each unit is identified by a unique alphanumeric code that defines the manufacturing characteristics that best suites the application. Please confirm the following information before commencement of the product configuration. Process pressure:_ Process temperature:_ Design pressure: _ Design temperature:_ Fluid type: Specific gravity of fluid: Electrical connections Flange or thread material Flange or thread rating Float material Float diameter Electrical equipment With cooling extension Liquids with specific gravity > 0.5 kg/I Adjustable differential...

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MEC_Magnetic_level_switches_Riels 6Pages

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MEC_Magnetic_level_switches_Riels
6Pages