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Tankgeber 298A auf blauer Platinenansicht
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Flexible fill level sensor with an analogue signal – the new 298A fuel level sensor

With the reed-based, analogue 298A level indicator, elobau is bringing robust and flexible level measurement for industrial machine and off highway vehicle applications to market.

The new fuel level sensor 298A expands elobau’s reed-based range of products for level measurements in fuel, coolant, oil, water or chemical tanks. Design engineers and developers of machinery, vehicles and systems benefit from a compact, flexibly configurable fuel level sensor with an analogue output signal. This output signal is also the major difference from fuel level sensor 298, which has been offered by elobau to date. While the 298 generates a resistance output signal, the 298A uses an analogue output signal, either as a current signal within the range 4 to 20 mA or a voltage signal within the range 0.5 to 4.5 V DC. This simplifies the integration into the vehicle’s electrics considerably, since additional components such as converters can be omitted. The simplified output signal enables a complication-free connection to other vehicle systems, such as the fill level indicator in the cockpit.

Tankgeber 298

Robust technology with a high degree of flexibility

Due to the reed technology, the fuel level sensor is especially robust against external influences, works in a temperature range of -40°C to max. +110°C and boasts protection class IPX9K ISO 20653 for vehicle applications and protection class IPX7 DIN EN 60529 for industrial applications. The head and pipe are made of aluminium. A stainless steel version is currently under development and will be available later this year. The sealing material consists of either fluororubber (FKM) or nitrile butadiene rubber (NBR). The integrated electronics allow for an especially compact design, whereby the 298A fuel level sensor can be used in a wide range of tank and hydraulic applications, such as agricultural and construction machinery, but also in industrial trucks and other off highway vehicles.

The mechanical connection is made either using an asymmetrical 5-hole flange or a symmetrical 4-hole flange. The developers are also already working on the connection option using a size G1.5″ or G2″ mounting thread. The pipe length of 187 to 1,210 mm enables the use in a wide variety of tank sizes. elobau also supports its customers with a tailored, application-specific configuration, whereby the fuel level sensor can be integrated into almost any machine or vehicle.

Further details can be found in our continuous level measurement section at


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