Level Measurement - Visual level indicator - Transmitter

15.01.2019

Your level indicator also linked to a computer

The transmitters provide a continuous output signal and extend the visual indicator of the visual level indicator to become a level transmitter.

 

Application

The transmitter is installed on the outside of the standpipe of the visual level indicator opposite to the indication rail. In the event of changes in the level, the float magnet of the level indicator actuates the reed contacts in the transmitter, resulting in a change in its resistance value. These transmitters are available with a resolution of either 10 mm or 5 mm.

 

Analog or digital?

Signal outputs as a 3-wire version (current-fed or as a resistance chain) or a 2-wire version (as a current sink) can be used up to medium temperatures of +350 °C. The current feed results in defined voltage changes at the output which are directly transmitted to the indicator. If the measurement range is exceeded upwards (30 mm), this is indicated by means of a jump in the output signal of 115 % based on the NAMUR NE43 recommendation.

Special types are combined together with the HART® converter module, PA converter module or FF converter module as a resistance chain and offer all the advantages of digital communication such as scaling and parameterizing.

 

Use in areas with potentially explosive atmospheres

For use in areas with potentially explosive atmospheres, versions in an intrinsically safe design (Ex i) or versions with pressure-tight explosion-proof housings (Ex d) that have been type-tested according to the European Directive 2014/34/EU (ATEX) are available. For magnetostrictive transmitters, an authorization according to ECEx is already available. Other product authorizations according to IECEx will follow in the near future.

 

Quality assurance by 100 % routine inspection and testing

Especially for electrical products, safety testing is an absolute must in order to be able to rule out possible electric shock hazards. This is why we test each individual transmitter prior to its delivery as to if it is safe and functions properly. Functional verification is recorded, logged and delivered together with each device.

 

Wide variety of our transmitters

Whether with cable out, plug-in connector or terminal box; in order to ideally supplement your level indicator, you select the version which best suits your application. Accessories such as transmitters, magnetic switches or other options can also be retrofitted at a later stage on request.

For most applications, you will find a suitable device from our standard program. Again and again, however, also customized solutions are required for special operating conditions. Our strengths include the development, production and testing of customized solutions to suit your individual requirements. Please do not hesitate to contact us, we will be happy to advise you.

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