LBV300 Riels Instruments vibration level switch - 9 Pages

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LBV300 Riels Instruments vibration level switch

Catalog excerpts

UNIVERSAL LIMIT SWITCH FOR BULK MATERIALS Universal limit switch for bulk materials – rugged and reliable measurement for bulk materials using the tuning fork principle The level sensors of the Riels LBV300 series fulfil their tasks signalling full, empty, or desired states ruggedly, reliably and highly accurately. The measurement principle of the tuning fork reacts to changes in density between the surrounding air and the bulk material, and thus operates independently of silo shape, the tank material used, container structures or the bulk material involved. It is also friction-free and maintenance-free. Area of use Tutti i dati ed i contenuti di questa scheda sono di proprietà esclusiva di Riels Instruments The devices of the RielsLBV300 series are used in tanks and silos, as well as storage and intermediate containers for bulk materials. While the LBV310 basis device is principally used to signal full states or mounted laterally for demand or empty states, the LBV320 variant with suspension cable and the tube-extended LBV330 sensor for vertical mounting in silos are used with switching distances of up to 80 meters (LBV320) or 6 meters (LBV330). With a wide variety of thread and flange connections, and several electronic variants, the LBV300 series offers a solution for almost all applications, even in potentially explosive atmospheres. As a result of the flexibility of the device design, the LBV300 can also be used, in particular, for retrofit projects – as a replacement for outmoded technologies such as rotating paddle sensors. Advantages - Rugged device design - Flexible basic concept allows customer specific solutions - Teaching without filling - Very high reproducibility Fault monitoring The electronics module continuously monitors the correct vibrating frequency and the line break to the piezo drive. If one of the stated malfunctions is detected or in case of power failure, the electronics takes one defined switchingcondition, e.g. the relay deenergises (safe condition). Type overview Preferred application Length Process connection Bulk Thread G1½ A, flanges -50 … +150°C (-58 … +302°F) -50 … +250°C (-58 … +482°F) with temperature adapter -1 … 25 bar/-100 … 2500 kPa (-14.5 … 363 psig) Relay, transistor output, contactless electronic switch, NAMUR output Bulk 0,48 … 80 m (0.984 … 262.47 ft) Thread G1½ A, flanges Bulk 0,24 … 6 m (0.984 … 13.12 ft) Thread G1½ A, flanges -50… +150°C (-58 … +302°F) -50… +250°C (-58 … +482°F) with temperature adapter -1 … 25 bar/-100 … 2500 kPa (-14.5 … 363 psig) Relay, transistor output, contactless electronic switch, NAMUR output Process temperature Process pressure Signal output - 20 … +80°C (-4 … +176°F) - 1 … 6 bar/-100 … 600 kPa (-14.5 … 87 psig) Relay, transistor output, contactless electronic switch, NAMUR output

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Housing types Plastic housing Aluminium housing Stainless steel housing Dimensions LBV320 - rope extension threaded version G1½ Tutti i dati ed i contenuti di questa scheda sono di proprietà esclusiva di Riels Instruments

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Tutti i dati ed i contenuti di questa scheda sono di proprietà esclusiva di Riels Instruments LBV330 - tube extension threaded version G1½ Electrical connection 1. Preparing the connection - Please note safety instructions Always keep in mind the following safety instructions: - Connect only in the complete absence of line voltage Take note of safety instructions for Ex applications In hazardous areas you should take note of the appropriate regulations, conformity and type approval certificates of the sensors and power supply units. In hazardous areas, only use approved cable connections...

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Transistor output Contactless electronic switch We recommend connecting LBV300 in such a way that the switching circuit is open when there is a level signal, line break or failure (safe condition). The instrument is used to control relays, contactors, magnet valves, warning lights, horns as well as PLC inputs. We recommend connecting LBV300 in such a way that the switching circuit is open when there is a level signal, line break or failure (safe condition). The contactless electronic switch is always shown in non-operative condition. The instrument is used for direct control of relays,...

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Electronics (Version C) Switching output    Transistor output    Contactless electronic switch Signal voltage HIGH    UV - 3 V Signal voltage LOW    < 1V Output current Ia    < 300 mA    < 400 mA Capacitive load Inductive load Supply voltage Residual ripple Current consumption Initialization time Protection class Electronics (Version R)    Electronics (Version N) Switching output    Relay output    Namur output Output load Tutti i dati ed i contenuti di questa scheda sono di proprieta esclusiva di Riels Instruments Capacitive load Inductive load Supply voltage Current...

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Material cone To achieve a very precise switching point, you can install LBV300 horizontally. However, if the switching point can have a tolerance of a few centimeters, we recommend mounting LBV300 approx. 20° inclined to the vessel bottom to avoid build-up. To make sure the tuning fork of LBV300 generates as little resistance as possible to product flow, mount the sensor so that the surfaces are parallel to the product movement. Orient the tuning fork of LBV300 so that the product cannot remain lying on the fork surface.There is a mark on the thread hexagon for aligning the fork. Make sure...

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Contactless electronic switch 20...253VAC/DC Tutti i dati ed i contenuti di questa scheda sono di proprieta esclusiva di Riels Instruments NAMUR signal Cable entry / Plug connection

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